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Dr. John William McMahon JR., MD

(68 Ratings)

Specializes in: Obstetrics

University of Washington School of Medicine (1983)

1950 W Frye Road Building B
Chandler, AZ 85224

(480) 303-1599

Dr. John William McMahon JR., MD is an obstetrician in Chandler, AZ specializing in obstetrics. He graduated from University of Washington School of Medicine in 1983 and has 43 years of experience. Dr. John William McMahon JR., MD is affiliated with Dignity Health, Cobre Valley Regional Medical Center and Chandler Regional Medical Center Mercy Gilbert Medical Center.

Office Locations

Chandler Regional Medical Center Mercy Gilbert Medical Center

1950 W Frye Road Building B
Chandler, AZ 85224

(480) 303-1599

(480) 802-7845

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5880 S Hospital Drive
Globe, AZ 85501

(928) 425-3261

(928) 425-3859

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2012 were blood draw.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

blood draw	22
doctor visit	48

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2013 were blood draw, reconstructive surgery, pelvic surgery and urologic procedures.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

blood draw	20
doctor visit	57
pelvic surgery	13
reconstructive surgery	13
urologic procedures	13

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	71

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	21

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2013

Hypertension	44
High Cholesterol	30
Stroke	0
Ischemic Heart Disease	0
Depression	34
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2014 were blood draw.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

blood draw	17
doctor visit	66

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	66

**Age**
From 65 to 74	25
From 75 to 84	0
85 and over	0
Less than 65	22

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2014

Hypertension	32
High Cholesterol	20
Stroke	0
Ischemic Heart Disease	0
Depression	29
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

doctor visit	41

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	112

**Age**
From 65 to 74	44
From 75 to 84	0
85 and over	0
Less than 65	38

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2015

Hypertension	30
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	39
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2016 were ultrasound (sonogram), pelvic imaging, breast exam and gynecologic procedures.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

breast exam	19
doctor visit	37
gynecologic procedures	19
pelvic imaging	33
ultrasound (sonogram)	33
women's imaging	15

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	75

**Age**
From 65 to 74	32
From 75 to 84	0
85 and over	0
Less than 65	20

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2016

Hypertension	35
High Cholesterol	29
Stroke	0
Ischemic Heart Disease	0
Depression	29
Chronic Kidney Disease	0
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2017 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

doctor visit	83
pelvic imaging	76
ultrasound (sonogram)	76
women's imaging	39

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Age**
From 65 to 74	50
From 75 to 84	0
85 and over	0
Less than 65	26

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2017

Hypertension	36
High Cholesterol	27
Stroke	0
Ischemic Heart Disease	0
Depression	26
Chronic Kidney Disease	18
Asthma	11
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	11
Diabetes	21
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2018 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

doctor visit	92
pelvic imaging	58
ultrasound (sonogram)	58
women's imaging	29

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	97

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

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2018

Hypertension	39
High Cholesterol	26
Stroke	0
Ischemic Heart Disease	15
Depression	29
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2019 were ultrasound (sonogram), pelvic imaging and women's imaging.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

doctor visit	74
pelvic imaging	39
ultrasound (sonogram)	39
women's imaging	19

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Age**
From 65 to 74	40
From 75 to 84	0
85 and over	0
Less than 65	21

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2019

Hypertension	49
High Cholesterol	31
Stroke	0
Ischemic Heart Disease	17
Depression	30
Chronic Kidney Disease	25
Asthma	15
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	20
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2020 were ultrasound (sonogram), pelvic imaging, women's imaging and blood draw.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

blood draw	14
doctor visit	81
pelvic imaging	50
ultrasound (sonogram)	50
women's imaging	24

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	78

**Age**
From 65 to 74	38
From 75 to 84	0
85 and over	0
Less than 65	21

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2020

Hypertension	27
High Cholesterol	29
Stroke	0
Ischemic Heart Disease	0
Depression	29
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ during 2021 were blood draw.

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

blood draw	12
doctor visit	61

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	57

**Age**
From 65 to 74	26
From 75 to 84	0
85 and over	0
Less than 65	16

Conditions of Medicare patients treated by Dr. John William McMahon JR., MD in 2021

Hypertension	44
High Cholesterol	26
Stroke	0
Ischemic Heart Disease	19
Depression	30
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Volume of procedures performed by Dr. John William McMahon JR., MD for Medicare patients.

The highest averages for the top procedures that Dr. John William McMahon JR., MD treated as an obstetrician in Chandler, AZ were ultrasound (sonogram), pelvic imaging, women's imaging and breast exam.

blood draw	17
breast exam	19
doctor visit	64
gynecologic procedures	19
pelvic imaging	51
pelvic surgery	13
reconstructive surgery	13
ultrasound (sonogram)	51
urologic procedures	13
women's imaging	25

Average Medicare Patient Data From 2012 - 2021

Information about Medicare patients treated by Dr. John William McMahon JR., MD.

**Gender**
Male	0
Female	55

**Age**
75 to 84	0
85 and over	0
Less than 65	18
65 to 74	32

Average of Total of Conditions of Medicare patients treated by Dr. John William McMahon JR., MD From 2012 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. John William McMahon JR., MD treated were hypertension, depression, high cholesterol and diabetes.

Hypertension	33
High Cholesterol	21
Stroke	0
Ischemic Heart Disease	5
Depression	27
Chronic Kidney Disease	7
Asthma	4
Osteoporosis	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	1
Diabetes	9
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

Dr. John William McMahon JR., MD graduated from University of Washington School of Medicine in 1983. He completed residency at St. Joseph's Hospital and Medical Center. He is certified by the Obstetrics & Gynecology and has a state license in Montana.

Medical School: University of Washington School of Medicine (1983)

Residency: St. Joseph's Hospital and Medical Center

Board Certification: Obstetrics & Gynecology

Licensed In: Montana

Affiliations & Hospitals

Dr. John William McMahon JR., MD is associated with these hospitals and organizations:

Dignity Health

Cobre Valley Regional Medical Center

Chandler Regional Medical Center Mercy Gilbert Medical Center

Ratings & Reviews

Dr. John William McMahon JR., MD has an exceptional overall rating with an average of 4.92 out of 5 stars based on 68 ratings. We collect ratings and reviews of Dr. John William McMahon JR., MD from all over the web to help you find the right in Chandler, AZ.

4.92

Overall Rating

(68 Ratings)

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General Payments

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

**Payments by Company**
Intuitive Surgical, Inc.	$14,513 Da Vinci Surgical System $14,513
CONMED Corporation	$83 AirSeal $83
AbbVie Inc.	$64 ORIAHNN $41	Orilissa $24
Hologic, LLC	$64 NovaSure $29	THIRD WAVE $14	Aptima $14	Myosure $6
AbbVie, Inc.	$55 Orilissa $40	Lupron $15
Other	$105 GARDASIL9 $33	Myrbetriq $18	NovaSure $18	Prolia $14	Skyla $12	Other $11

**Types of Payments**
Education	$12,000
Travel and Lodging	$2,189
Food and Beverage	$694

Biography

Dr. John McMahon's area of specialization is obstetrics. Dr. McMahon's average patient rating is 5.0 stars (out of 5). He studied medicine at the University of Washington School of Medicine. He completed his residency training at St. Joseph's Hospital and Medical Center. Dr. McMahon's hospital/clinic affiliations include Cobre Valley Regional Medical Center and Dignity Health. He has a closed panel according to Dignity Health.

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Dr. John William McMahon JR., MD

Office Locations

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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon 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 William McMahon JR., MD in 2021

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2021

Average Medicare Patient Data From 2012 - 2021

Average of Total of Conditions of Medicare patients treated by Dr. John William McMahon JR., MD From 2012 - 2021

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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