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Dr. Gary David Zimmer, MD

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Specializes in: Emergency Medicine

Weill Cornell Medical College (1997)

2500 Bernville Road
Reading, PA 19605

(215) 710-5900

Dr. Gary David Zimmer, MD is an emergency medicine doctor in Reading, PA specializing in emergency medicine. He graduated from Weill Cornell Medical College in 1997 and has 29 years of experience. Dr. Gary David Zimmer, MD is affiliated with Frederick Health, Penn State Health, EMERGENCY PHYSICIAN SERVICES OF NEW YORK, P.C. and EMERGENCY PHYSICIAN ASSOCIATES OF NEW ENGLAND PC.

Office Locations

2500 Bernville Road
Reading, PA 19605

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In The News (see more mentions in the news)

“Gary D. Zimmer, MD, FACEP, has joined Mohawk Valley Health System (MVHS) as the chief medical officer (CMO).”—"SNAPSHOT: MVHS welcomes new Chief Medical Officer", Oneida Dispatch, August 2024

“Prior to that, Crozer had administered more than 20,000 doses to Emergency Medical Services personnel, unaffiliated phase 1A health care workers or phase 1A-eligible members of the public,...”—"Frustration continues to rise as COVID vaccine supplies lag", The Mercury, February 2021

“At St. Mary Medical Center in Middletown Township, Bucks County, which does not post a clock, emergency department chairman Gary Zimmer said he was concerned a lengthy posted wait time could cause...”—"Hospitals putting ERs on the clock", Philadelphia Inquirer, January 2011

Noteworthy Medicare Patient Procedures Performed by Dr. Gary David Zimmer, MD in 2023

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

Top 25%

By Volume:

emergency room care

In 2012, Dr. Gary David Zimmer, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of providers in related specialties within Pennsylvania.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2012 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	167

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2013 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	63

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	29
Female	43

**Age**
From 65 to 74	25
From 75 to 84	23
85 and over	11
Less than 65	13

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2013

Hypertension	75
High Cholesterol	71
Stroke	22
Ischemic Heart Disease	58
Depression	42
Chronic Kidney Disease	33
Asthma	0
Osteoperosis	19
Atrial Fibrilation	31
Heart Failure	32
Chronic Obstructive Pulmonary Disease	26
Diabetes	32
Dementia	18
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2014 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	196

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	86
Female	112

**Age**
From 65 to 74	63
From 75 to 84	60
85 and over	48
Less than 65	27

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	17
Ischemic Heart Disease	71
Depression	45
Chronic Kidney Disease	33
Asthma	12
Osteoperosis	16
Atrial Fibrilation	32
Heart Failure	38
Chronic Obstructive Pulmonary Disease	30
Diabetes	42
Dementia	21
Cancer	17

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2015 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	28
Female	42

**Ethnicity**
Non-Hispanic White	48
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2015

Hypertension	75
High Cholesterol	74
Stroke	0
Ischemic Heart Disease	66
Depression	60
Chronic Kidney Disease	46
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	31
Chronic Obstructive Pulmonary Disease	34
Diabetes	60
Dementia	37
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2016 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	21
Female	31

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	14
From 75 to 84	0
85 and over	0
Less than 65	26

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2016

Hypertension	75
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	56
Depression	56
Chronic Kidney Disease	38
Asthma	42
Osteoperosis	0
Atrial Fibrilation	23
Heart Failure	37
Chronic Obstructive Pulmonary Disease	33
Diabetes	46
Dementia	29
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2017 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	49

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	22
Female	28

**Ethnicity**
Non-Hispanic White	28
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	19
From 75 to 84	0
85 and over	0
Less than 65	19

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2017

Hypertension	74
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	34
Depression	42
Chronic Kidney Disease	34
Asthma	30
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	30
Chronic Obstructive Pulmonary Disease	28
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

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

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2018

Hypertension	70
High Cholesterol	61
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	48
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2019 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	180

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	87
Female	99

**Ethnicity**
Non-Hispanic White	144
Black	0
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	50
85 and over	31
Less than 65	49

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2019

Hypertension	75
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	48
Depression	39
Chronic Kidney Disease	44
Asthma	16
Osteoperosis	7
Atrial Fibrilation	23
Heart Failure	35
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2020 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	77

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	43
Female	45

**Ethnicity**
Non-Hispanic White	75
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	24
From 75 to 84	23
85 and over	17
Less than 65	24

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2020

Hypertension	75
High Cholesterol	61
Stroke	0
Ischemic Heart Disease	57
Depression	36
Chronic Kidney Disease	52
Asthma	26
Osteoperosis	14
Atrial Fibrilation	25
Heart Failure	39
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	31
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2021 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	70

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	36
Female	37

**Ethnicity**
Non-Hispanic White	42
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	22

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2021

Hypertension	70
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	48
Depression	42
Chronic Kidney Disease	51
Asthma	16
Osteoperosis	0
Atrial Fibrilation	16
Heart Failure	30
Chronic Obstructive Pulmonary Disease	21
Diabetes	44
Dementia	22
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA during 2022 were emergency care.

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

emergency care	207

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	99
Female	116

**Ethnicity**
Non-Hispanic White	160
Black	29
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	66
85 and over	47
Less than 65	38

Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	20
Ischemic Heart Disease	45
Depression	36
Chronic Kidney Disease	32
Asthma	20
Osteoperosis	16
Atrial Fibrilation	31
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	40
Dementia	19
Cancer	27

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gary David Zimmer, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary David Zimmer, MD treated as an emergency medicine doctor in Reading, PA were emergency care.

emergency care	107

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gary David Zimmer, MD.

**Gender**
Male	41
Female	50

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	0
Non-Hispanic White	48
Native American / Alaskan Native	0
Hispanic	1
Other	0

**Age**
75 to 84	20
85 and over	14
Less than 65	20
65 to 74	28

Average of Total of Conditions of Medicare patients treated by Dr. Gary David Zimmer, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gary David Zimmer, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	67
High Cholesterol	60
Stroke	6
Ischemic Heart Disease	43
Depression	36
Chronic Kidney Disease	33
Asthma	14
Osteoporosis	6
Heart Failure	27
Chronic Obstructive Pulmonary Disease	23
Diabetes	38
Atrial Fibrillation	16
Dementia	17
Cancer	6

Education & Training

Dr. Gary David Zimmer, MD graduated from Weill Cornell Medical College in 1997. He completed residency at Brigham and Women's Hospital. He has a state license in Rhode Island.

Medical School: Weill Cornell Medical College (1997)

Residency: Brigham and Women's Hospital (2001)

Licensed In: Rhode Island

Affiliations & Hospitals

Dr. Gary David Zimmer, MD is associated with these hospitals and organizations:

Frederick Health

Penn State Health

EMERGENCY PHYSICIAN SERVICES OF NEW YORK, P.C.

EMERGENCY PHYSICIAN ASSOCIATES OF NEW ENGLAND PC

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Biography

Dr. Gary Zimmer's area of specialization is emergency medicine. He is a graduate of Weill Cornell Medical College. Dr. Zimmer's residency was performed at Brigham and Women's Hospital. He is professionally affiliated with Frederick Health and Penn State Health.