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Dr. Weijen William Chang, MD

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Specializes in: Internal Medicine (Adult Medicine), General Pediatrics and Pediatric Hospital Medicine

New York Medical College (1994)

6535 Nemours Parkway
Orlando, FL 32827

(407) 650-7715

Dr. Weijen William Chang, MD is an internist in Orlando, FL specializing in internal medicine (adult medicine), general pediatrics and pediatric hospital medicine. He graduated from New York Medical College in 1994 and has 32 years of experience. Dr. Weijen William Chang, MD is affiliated with Baystate Health, Nemours Children's Health and Baystate Pediatric Hospital Medicine.

Office Locations

6535 Nemours Parkway
Orlando, FL 32827

(407) 650-7715

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759 Chestnut Street
Springfield, MA 01107

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759 Chestnut Street
Springfield, MA 01199

(413) 794-2398

(413) 794-3207

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	475
inpatient care	475

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	527
inpatient care	527

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	98
Female	96

**Ethnicity**
Non-Hispanic White	134
Black	0
Hispanic	19
Asian	22
Other	0
Native American	0

**Age**
From 65 to 74	55
From 75 to 84	54
85 and over	34
Less than 65	51

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	8
Ischemic Heart Disease	47
Depression	42
Chronic Kidney Disease	62
Asthma	12
Osteoperosis	14
Atrial Fibrilation	23
Heart Failure	41
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	28
Cancer	29

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	491
inpatient care	491

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	87
Female	98

**Ethnicity**
Non-Hispanic White	111
Black	18
Hispanic	34
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	53
From 75 to 84	42
85 and over	39
Less than 65	51

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2014

Hypertension	75
High Cholesterol	52
Stroke	11
Ischemic Heart Disease	56
Depression	45
Chronic Kidney Disease	63
Asthma	12
Osteoperosis	17
Atrial Fibrilation	20
Heart Failure	41
Chronic Obstructive Pulmonary Disease	31
Diabetes	42
Dementia	32
Cancer	25

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2015 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	507
inpatient care	507

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	174
Female	212

**Ethnicity**
Non-Hispanic White	244
Black	0
Hispanic	68
Asian	34
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	96
85 and over	82
Less than 65	92

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2015

Hypertension	75
High Cholesterol	55
Stroke	12
Ischemic Heart Disease	55
Depression	40
Chronic Kidney Disease	66
Asthma	26
Osteoperosis	15
Atrial Fibrilation	25
Heart Failure	40
Chronic Obstructive Pulmonary Disease	37
Diabetes	44
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2016 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	415
inpatient care	415

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	85
Female	71

**Ethnicity**
Non-Hispanic White	110
Black	0
Hispanic	22
Asian	12
Other	0
Native American	0

**Age**
From 65 to 74	57
From 75 to 84	32
85 and over	26
Less than 65	41

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2016

Hypertension	75
High Cholesterol	47
Stroke	10
Ischemic Heart Disease	55
Depression	43
Chronic Kidney Disease	67
Asthma	35
Osteoperosis	20
Atrial Fibrilation	23
Heart Failure	46
Chronic Obstructive Pulmonary Disease	37
Diabetes	37
Dementia	30
Cancer	15

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	0
Chronic Kidney Disease	69
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	75
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2021 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	14
inpatient care	14

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	75
Depression	70
Chronic Kidney Disease	75
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	70
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL during 2022 were hospital care and inpatient care.

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

hospital care	26
inpatient care	26

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	15
Female	16

**Age**
From 65 to 74	0
From 75 to 84	12
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	71
Depression	61
Chronic Kidney Disease	61
Asthma	0
Osteoperosis	0
Atrial Fibrilation	61
Heart Failure	65
Chronic Obstructive Pulmonary Disease	45
Diabetes	58
Dementia	42
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2023

Hypertension	75
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
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

Conditions of Medicare patients treated by Dr. Weijen William Chang, MD in 2024

Hypertension	75
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
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 - 2024

Volume of procedures performed by Dr. Weijen William Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Weijen William Chang, MD treated as an internist in Orlando, FL were hospital care and inpatient care.

hospital care	350
inpatient care	350

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Weijen William Chang, MD.

**Gender**
Male	45
Female	49

**Ethnicity**
Black / African American	1
Asian / Pacific Islander	6
Non-Hispanic White	59
Native American / Alaskan Native	0
Hispanic	14
Other	0

**Age**
75 to 84	23
85 and over	18
Less than 65	23
65 to 74	28

Average of Total of Conditions of Medicare patients treated by Dr. Weijen William Chang, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Weijen William Chang, MD treated were hypertension, chronic kidney disease, high cholesterol and ischemic heart disease.

Hypertension	67
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	43
Depression	30
Chronic Kidney Disease	46
Asthma	8
Osteoporosis	6
Heart Failure	37
Chronic Obstructive Pulmonary Disease	17
Diabetes	22
Atrial Fibrillation	15
Dementia	15
Cancer	8

Education & Training

Dr. Weijen William Chang, MD graduated from New York Medical College in 1994. He completed residency at Duke University Hospital. He is certified by the Internal Medicine, American Board of Internal Medicine and has a state license in Massachusetts.

Medical School: New York Medical College (1994)

Residency: Duke University Hospital (1998)

Board Certification: Internal Medicine, American Board of Internal Medicine

Licensed In: Massachusetts

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. Weijen William Chang, MD appears to accept the following insurance providers: United Healthcare Community Plan (AmeriChoice), CeltiCare, Private Healthcare Systems (PHCS), ConnectiCare, Prime Health, BlueCross BlueShield of Florida, MultiPlan PPO, Blue Cross Blue Shield HMO, Three Rivers Provider Network, Aetna, Railroad Medicare, AvMed, United Healthcare, Unicare, Medicare, Medicaid, Humana, Cigna, Tufts Health Plan, TRICARE, Molina Healthcare, Harvard Pilgrim Health Care, HealthSmart, Employers Health Network, First Health, Blue Cross and Blue Shield Non HMO, Seminole Tribe of Florida, HNE BE HEALTHY PARTNERSHIP, Blue Cross and Blue Shield HMO, Curative Administrators, BMC HEALTHNET ACO, Sunshine SMI/CMS 19 & 21, CONSOLIDATED, BLUE SHIELD PPO IND, Redion/GMMI FL, Florida Community Care, Aetna HMO/POS/PPO/EPO, Star Healthcare Network, BLUE SHIELD MEDICARE ADV, NORTHEAST DIRECT, Simply Healthcare Healthy Kids, HEALTH NEW ENGLAND EXCLUDING BE HEALTHY, COMMONWEALTH CARE ALLIANCE, FALLON ACO, Olympus Managed Healthcare PPO ORL, FALLON NON MASS HEALTH, Volusia Health Network PPO/EPO, BMC HEALTHNET MCO, Provider Network of America (PNOA) and SERENITY CARE PACE.

Insurance Accepted by Provider includes:

According to our sources, Dr. Weijen William Chang, MD accepts the following insurance providers:

United Healthcare Community Plan (AmeriChoice)

CeltiCare

Private Healthcare Systems (PHCS)

ConnectiCare

Prime Health

BlueCross BlueShield of Florida

MultiPlan PPO

Blue Cross Blue Shield HMO

Three Rivers Provider Network

Aetna

Railroad Medicare

AvMed

United Healthcare

Unicare

Medicare

Medicaid

Humana

Cigna

Tufts Health Plan

TRICARE

Molina Healthcare

Harvard Pilgrim Health Care

HealthSmart

Employers Health Network

First Health

Blue Cross and Blue Shield Non HMO

Seminole Tribe of Florida

HNE BE HEALTHY PARTNERSHIP

Blue Cross and Blue Shield HMO

Curative Administrators

BMC HEALTHNET ACO

Sunshine SMI/CMS 19 & 21

CONSOLIDATED

BLUE SHIELD PPO IND

Redion/GMMI FL

Florida Community Care

Aetna HMO/POS/PPO/EPO

Star Healthcare Network

BLUE SHIELD MEDICARE ADV

NORTHEAST DIRECT

Simply Healthcare Healthy Kids

HEALTH NEW ENGLAND EXCLUDING BE HEALTHY

COMMONWEALTH CARE ALLIANCE

FALLON ACO

Olympus Managed Healthcare PPO ORL

FALLON NON MASS HEALTH

Volusia Health Network PPO/EPO

BMC HEALTHNET MCO

Provider Network of America (PNOA)

SERENITY CARE PACE

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General Payments

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

**Payments by Company**
Sunovion Pharmaceuticals Inc.	$4,404 Brovana $4,404

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$2,500
Travel and Lodging	$1,789
Food and Beverage	$112
Education	$3

Biography

Dr. Weijen Chang's specialties are pediatric hospital medicine and general pediatrics. Dr. Chang attended medical school at New York Medical College. His medical residency was performed at Duke University Hospital. He can take several insurance carriers, including AvMed, Blue Cross/Blue Shield, and HealthSmart. Dr. Chang has received the following distinctions: Resident Teaching Award, Pediatrics Residency Program, UMass Chan Medical School-Baystate and Fellow, American Academy of Pediatrics. He is affiliated with Nemours Children's Health and Baystate Health.