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Home > TX Providers > Family Physicians & Family Medicine Specialists

Dr. John Wesley Mercer JR., MD

Accepting New Patients

(1582 Ratings)

Specializes in: Family Medicine

Louisiana State University Health Sciences Center (1997)

Professional interests include: newborn care

600 COOPER DRIVE SUITE 100
WYLIE, TX 75098

(469) 800-2630

Dr. John Wesley Mercer JR., MD is a family medicine practitioner in WYLIE, TX specializing in family medicine. He graduated from Louisiana State University Health Sciences Center in 1997 and has 29 years of experience. Dr. John Wesley Mercer JR., MD is affiliated with Baylor Scott & White Medical Center - Plano, Baylor Scott & White Health and Baylor Scott & White Medical Center - Lake Pointe.

Office Locations

600 COOPER DRIVE SUITE 100
WYLIE, TX 75098

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Noteworthy Medicare Patient Procedures Performed by Dr. John Wesley Mercer JR., MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Volume:

flu shot

In 2012, Dr. John Wesley Mercer JR., MD performed more flu shot procedures for Medicare patients than 75% of providers in related specialties within Texas.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2012 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

aspiration	14
blood draw	160
diabetes management	31
doctor visit	676
injections	14
lab tests	234
preventive care	120
vaccines	89

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2013 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	177
diabetes management	28
doctor visit	643
lab tests	228
preventive care	138
vaccines	110

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	90
Female	99

**Age**
From 65 to 74	81
From 75 to 84	66
85 and over	19
Less than 65	23

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2013

Hypertension	49
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	31
Depression	10
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	12
Chronic Obstructive Pulmonary Disease	8
Diabetes	30
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2014 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	157
diabetes management	25
doctor visit	696
lab tests	246
preventive care	114
vaccines	89

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	95
Female	101

**Age**
From 65 to 74	92
From 75 to 84	62
85 and over	18
Less than 65	24

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2014

Hypertension	47
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	29
Depression	15
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2015 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	177
diabetes management	45
doctor visit	608
lab tests	233
preventive care	153
vaccines	108

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	212
Female	196

**Age**
From 65 to 74	200
From 75 to 84	130
85 and over	38
Less than 65	40

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2015

Hypertension	54
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	28
Dementia	12
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2016 were preventive care, vaccines, blood draw and lab tests.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

aspiration	18
blood draw	112
diabetes management	57
doctor visit	496
injections	18
lab tests	83
preventive care	175
vaccines	118

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	96
Female	93

**Ethnicity**
Non-Hispanic White	178
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	98
From 75 to 84	53
85 and over	18
Less than 65	20

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2016

Hypertension	47
High Cholesterol	31
Stroke	0
Ischemic Heart Disease	29
Depression	13
Chronic Kidney Disease	16
Asthma	12
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2017 were preventive care, blood draw, lab tests and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

aspiration	21
blood draw	145
diabetes management	49
doctor visit	543
injections	21
lab tests	99
preventive care	147
vaccines	98

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	93
Female	94

**Ethnicity**
Non-Hispanic White	176
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	48
85 and over	17
Less than 65	18

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2017

Hypertension	49
High Cholesterol	24
Stroke	0
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	10
Diabetes	32
Dementia	12
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2018 were blood draw, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	168
diabetes management	34
doctor visit	442
lab tests	70
preventive care	151
vaccines	117

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	94
Female	86

**Ethnicity**
Non-Hispanic White	169
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	47
85 and over	19
Less than 65	11

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2018

Hypertension	45
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	24
Depression	16
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	0
Atrial Fibrilation	7
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	28
Dementia	11
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2019 were preventive care, blood draw, vaccines and lab tests.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

aspiration	21
blood draw	170
diabetes management	51
doctor visit	475
injections	21
lab tests	88
preventive care	171
vaccines	120

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	98
Female	91

**Ethnicity**
Non-Hispanic White	177
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	47
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2019

Hypertension	49
High Cholesterol	30
Stroke	0
Ischemic Heart Disease	25
Depression	17
Chronic Kidney Disease	19
Asthma	0
Osteoperosis	0
Atrial Fibrilation	6
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	13
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2020 were preventive care, blood draw, vaccines and lab tests.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	141
diabetes management	53
doctor visit	343
lab tests	76
preventive care	141
vaccines	88

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	83
Female	82

**Ethnicity**
Non-Hispanic White	153
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	103
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2020

Hypertension	50
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	23
Depression	18
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	7
Chronic Obstructive Pulmonary Disease	12
Diabetes	32
Dementia	8
Cancer	8

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2021 were blood draw, preventive care, lab tests and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	161
diabetes management	50
doctor visit	346
lab tests	74
preventive care	108
vaccines	58

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	89
Female	82

**Ethnicity**
Non-Hispanic White	158
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	41
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2021

Hypertension	45
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX during 2022 were blood draw, preventive care, lab tests and vaccines.

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

blood draw	160
diabetes management	47
doctor visit	421
lab tests	97
preventive care	101
vaccines	54

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	89
Female	86

**Ethnicity**
Non-Hispanic White	163
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	107
From 75 to 84	47
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2022

Hypertension	65
High Cholesterol	58
Stroke	8
Ischemic Heart Disease	26
Depression	15
Chronic Kidney Disease	7
Asthma	7
Osteoperosis	11
Atrial Fibrilation	18
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Wesley Mercer JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. John Wesley Mercer JR., MD treated as a family medicine practitioner in WYLIE, TX were blood draw, lab tests, preventive care and vaccines.

aspiration	18
blood draw	157
diabetes management	42
doctor visit	517
injections	18
lab tests	138
preventive care	138
vaccines	95

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Wesley Mercer JR., MD.

**Gender**
Male	94
Female	91

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	106
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	52
85 and over	11
Less than 65	12
65 to 74	100

Average of Total of Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John Wesley Mercer JR., MD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	45
High Cholesterol	32
Stroke	0
Ischemic Heart Disease	24
Depression	13
Chronic Kidney Disease	14
Asthma	1
Osteoporosis	1
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	26
Atrial Fibrillation	8
Dementia	9
Cancer	4

Education & Training

Dr. John Wesley Mercer JR., MD graduated from Louisiana State University Health Sciences Center in 1997. He completed residency at Dwight D. Eisenhower Army Medical Center. He is certified by the American Board of Family Medicine and has a state license in Texas.

Medical School: Louisiana State University Health Sciences Center (1997)

Residency: Dwight D. Eisenhower Army Medical Center (2000)

Board Certification: American Board of Family Medicine

Licensed In: Texas

Affiliations & Hospitals

Dr. John Wesley Mercer JR., MD is associated with these hospitals and organizations:

Baylor Scott & White Medical Center - Plano

Baylor Scott & White Health

Baylor Scott & White Medical Center - Lake Pointe

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. John Wesley Mercer JR., MD appears to accept the following insurance providers: United Healthcare Select Plus, United Healthcare Select, United Healthcare Choice Plus, United Healthcare Choice, Blue Choice, Aetna QPOS, Aetna Open Choice PPO, Blue California, Aetna Select, Aetna HMO, Aetna Open Access Managed Choice, CIGNA Choice Fund, Aetna Open Access Elect Choice, CIGNA Open Access Plus, Aetna Choice POS II, AARP, Medicare Advantage, TriWest, United Healthcare, United Healthcare Navigate, Medicaid, Aetna Managed Choice, Guardian, Humana, Cigna, United Healthcare Navigate Plus, Employers Health Network, HealthSmart, Humana PPO, Humana ChoiceCare Network, CIGNA Open Access Plus In Network, Superior Health Plan, Private Healthcare Systems (PHCS), Aetna-Aetna Signature Administrators, Aetna-Health Network Option, Baylor Scott & White Health Plan-PPO Network-Group, Baylor Scott & White Health Plan-BSW Extended PPO, DFW ConnectedCare-American Airlines Employee Benefit Plan, Baylor Scott & White Health Plan-BSW SeniorCare Advantage PPO, Baylor Scott & White Health Plan-BSW Plus HMO-Individual/Family, Baylor Scott & White Health Plan-Hendrick Health Employee Plan, Baylor Scott & White Health Plan-Covenant Preferred HMO, Baylor Scott & White Health Plan-ERS BSW Preferred HMO Network, Baylor Scott & White Health Plan-EPO Network-Individual/Family, Imagine Health-Imagine Health Network, Baylor Scott & White Health Plan-BSW Premier PPO, Baylor Scott & White Health Plan-BSW Plus HMO-Group, Nebraska Furniture Mart-Emerald, Baylor Scott & White Health Plan-BSWH Employee Network Premium (PPO)/ HDHP, Baylor Scott & White Health Plan-BSW Access PPO, Baylor Scott & White Health Plan-Pyco Industries Employee Plan, Baylor Scott & White Health Plan-BSW Plus PPO-Group, Baylor Scott & White Health Plan-BSW Preferred HMO Network - Group, Baylor Scott & White Health Plan-HMO Network-Individual/Family, Baylor Scott & White Health Plan-BSW Solutions PPO, Baylor Scott & White Health Plan-BSW Preferred HMO - Individual Marketplace, Prism Electric-BSW Premier - Prism, Baylor Scott & White Health Plan-BSW Preferred PPO Network, Aetna-Group Retiree Medicare PPO - Limited to Exxon/Mobil, Nebraska Furniture Mart-Onyx, Centivo Network-Centivo Network - Baylor Scott & White Premier, Baylor Scott & White Health Plan-BSW Premier HMO-Individual/Family, Aetna-Open Access Select, Nebraska Furniture Mart-Pearl, Medicare-Traditional Medicare, Baylor Scott & White Health Plan-BSWH Employee Network (SEQA & EQA), Catalyst Health Group-Catalyst Health - Baylor Scott & White Preferred, Baylor Scott & White Health Plan-BSW Plus PPO-Individual/Family, Baylor Scott & White Health Plan-BSW SeniorCare Advantage HMO, University Mary Hardin-Baylor-University of Mary Hardin-Baylor, Baylor Scott & White Health Plan-McLane Group Network, Aetna-Health Network Only, Baylor Scott & White Health Plan-HMO Network-Group and Baylor Scott & White Health Plan-BSW Premier HMO-Group.

Insurance Accepted by Provider includes:

According to our sources, Dr. John Wesley Mercer JR., MD accepts the following insurance providers:

United Healthcare Select Plus

United Healthcare Select

United Healthcare Choice Plus

United Healthcare Choice

Blue Choice

Aetna QPOS

Aetna Open Choice PPO

Blue California

Aetna Select

Aetna HMO

Aetna Open Access Managed Choice

CIGNA Choice Fund

Aetna Open Access Elect Choice

CIGNA Open Access Plus

Aetna Choice POS II

AARP

Medicare Advantage

TriWest

United Healthcare

United Healthcare Navigate

Medicaid

Aetna Managed Choice

Guardian

Humana

Cigna

United Healthcare Navigate Plus

Employers Health Network

HealthSmart

Humana PPO

Humana ChoiceCare Network

CIGNA Open Access Plus In Network

Superior Health Plan

Private Healthcare Systems (PHCS)

Aetna-Aetna Signature Administrators

Aetna-Health Network Option

Baylor Scott & White Health Plan-PPO Network-Group

Baylor Scott & White Health Plan-BSW Extended PPO

DFW ConnectedCare-American Airlines Employee Benefit Plan

Baylor Scott & White Health Plan-BSW SeniorCare Advantage PPO

Baylor Scott & White Health Plan-BSW Plus HMO-Individual/Family

Baylor Scott & White Health Plan-Hendrick Health Employee Plan

Baylor Scott & White Health Plan-Covenant Preferred HMO

Baylor Scott & White Health Plan-ERS BSW Preferred HMO Network

Baylor Scott & White Health Plan-EPO Network-Individual/Family

Imagine Health-Imagine Health Network

Baylor Scott & White Health Plan-BSW Premier PPO

Baylor Scott & White Health Plan-BSW Plus HMO-Group

Nebraska Furniture Mart-Emerald

Baylor Scott & White Health Plan-BSWH Employee Network Premium (PPO)/ HDHP

Baylor Scott & White Health Plan-BSW Access PPO

Baylor Scott & White Health Plan-Pyco Industries Employee Plan

Baylor Scott & White Health Plan-BSW Plus PPO-Group

Baylor Scott & White Health Plan-BSW Preferred HMO Network - Group

Baylor Scott & White Health Plan-HMO Network-Individual/Family

Baylor Scott & White Health Plan-BSW Solutions PPO

Baylor Scott & White Health Plan-BSW Preferred HMO - Individual Marketplace

Prism Electric-BSW Premier - Prism

Baylor Scott & White Health Plan-BSW Preferred PPO Network

Aetna-Group Retiree Medicare PPO - Limited to Exxon/Mobil

Nebraska Furniture Mart-Onyx

Centivo Network-Centivo Network - Baylor Scott & White Premier

Baylor Scott & White Health Plan-BSW Premier HMO-Individual/Family

Aetna-Open Access Select

Nebraska Furniture Mart-Pearl

Medicare-Traditional Medicare

Baylor Scott & White Health Plan-BSWH Employee Network (SEQA & EQA)

Catalyst Health Group-Catalyst Health - Baylor Scott & White Preferred

Baylor Scott & White Health Plan-BSW Plus PPO-Individual/Family

Baylor Scott & White Health Plan-BSW SeniorCare Advantage HMO

University Mary Hardin-Baylor-University of Mary Hardin-Baylor

Baylor Scott & White Health Plan-McLane Group Network

Aetna-Health Network Only

Baylor Scott & White Health Plan-HMO Network-Group

Baylor Scott & White Health Plan-BSW Premier HMO-Group

Ratings & Reviews

Dr. John Wesley Mercer JR., MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1582 ratings. We collect ratings and reviews of Dr. John Wesley Mercer JR., MD from all over the web to help you find the right in WYLIE, TX.

Overall Rating

(1582 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2023-12-13

Dr Mercer has been our doctor for our whole entire family (9 people) for over twenty years.  He is very thorough and has built a rapport withall of us.  He knows our family's medical history and genetically speaking, that is a plus.  He is always on top of a sickness and makes sure we get to required testing when due.  I would highly recommend Dr Mercer as his skills, including bed side manner are top notch.

Reviews From Around The Web

Overall Rating: 5.0 2024-07-10

Patient verified via Press Ganey

He was curious how I was doing and how he could help me on my visit . He came in the room shakes my hand, listened to my breathing and took my pulse ox and blood pressure . After he was done he asked me some questions and wanted to know how I was feeling. After the exam he wanted to know if I needed and prescription refilled and took care of that. Then we said our goodbyes and have a nice day and he went to see his next Pt .

Overall Rating: 5.0 2025-01-22

Patient verified via Press Ganey

Dr. Mercer knows everything about me as a patient and a person. He is in tune with my world and I do not have to spend much time for him to know what is needed. He is just a good dude.

Overall Rating: 5.0 2026-01-01

Patient verified via Press Ganey

Dr. Mercer always takes his time with me, and ensures I completely understand any diagnosis and next steps. We have great conversations surrounding our respective families as well.

Overall Rating: 5.0 2025-11-12

Patient verified via Press Ganey

Great doctor, when you find a great doctor that listens and helps you in every way and goes beyond you stay with them. Hard to find doctors like this one these days.

Overall Rating: 5.0 2025-12-08

Patient verified via Press Ganey

Excellent, patient and kind. Dr Mercer evaluates my health in a well rounded manner. Takes time to understand my daily life in a compassionate manner.

Overall Rating: 5.0 2025-03-03

Patient verified via Press Ganey

Dr. Mercer has taken excellent care of me for over 25 years. He is kind and considerate and really cares about his patients. He is the BEST.

Overall Rating: 5.0 2025-03-01

Patient verified via Press Ganey

Dr. Mercer makes me feel as if we are a team in my healthcare. He listens & explains options. It is my choice as to the option we take.

Overall Rating: 5.0 2026-02-28

Patient verified via Press Ganey

My best support system. Dr Mercer is very thorough and explains in detail and layman terms that are easy for me to understand.

Overall Rating: 5.0 2026-01-29

Patient verified via Press Ganey

I live over an hour away and I drive to visit Dr. Mercer. He makes me feel that I'm important not like some other Dr.do.

To see all 1582 reviews for Dr. John Wesley Mercer JR., MD, view their full profile.

General Payments

These charts describe general payments received by Dr. John Wesley Mercer JR., MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$1,098 SYMBICORT $303	FARXIGA $288	CRESTOR $256	BYDUREON $102	BEVESPI AEROSPHERE $51	Other $97
Intuitive Surgical, Inc.	$827 Da Vinci Surgical System $827
Takeda Pharmaceuticals America, Inc.	$589 Brintellix $147	Trintellix $126	Colcrys $109	Kazano $108	Contrave $99
Novo Nordisk Inc	$458 Victoza $144	Tresiba $139	Saxenda $74	$101
Boehringer Ingelheim Pharmaceuticals, Inc.	$407 TRADJENTA $109	JARDIANCE $105	SPIRIVA RESPIMAT $101	GLYXAMBI $58	STIOLTO $11	Other $23
Other	$2,779 BREO $201	VYVANSE $167	QSYMIA $148	INVOKANA $146	Trintellix $127	Other $1,991

**Types of Payments**
Food and Beverage	$5,304
Travel and Lodging	$827
Education	$27

Biography

Dr. John Mercer is a Wylie, TX physician who specializes in family medicine. Dr. Mercer has indicated that his clinical interests include newborn care. Patients gave him an average rating of 5.0 stars (out of 5). United Healthcare Navigate, Blue California, and HealthSmart seem to be the insurance carriers that Dr. Mercer accepts. He graduated from Louisiana State University School of Medicine in New Orleans and then he performed his residency at Dwight D. Eisenhower Army Medical Center. His hospital/clinic affiliations include Baylor Scott & White Medical Center - Plano and HealthTexas Provider Network. Doctor.com reports that Dr. Mercer is accepting new patients at his office in Wylie, TX.

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Dr. John Wesley Mercer JR., MD

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Noteworthy Medicare Patient Procedures Performed by Dr. John Wesley Mercer JR., MD in 2023

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. John Wesley Mercer JR., MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

General Payments

Biography

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