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Home > IN Providers > Internists & Internal Medicine Doctors

Dr. Mark E. Ritter, MD

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Specializes in: Internal Medicine (Adult Medicine) and Family Medicine

2022 Kelle Drive
Chesterton, IN 46304

(219) 395-2200

Dr. Mark E. Ritter, MD is an internist in Chesterton, IN specializing in internal medicine (adult medicine) and family medicine.

Office Locations

2022 Kelle Drive
Chesterton, IN 46304

(219) 395-2200

(219) 983-1837

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2012 were blood draw, lab tests, X-rays and preventive care.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

blood draw	750
breast procedures	60
doctor visit	1085
lab tests	142
preventive care	123
thoracic (chest) imaging	66
vaccines	19
women's imaging	60
X-rays	126

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2013 were blood draw, lab tests, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

blood draw	240
doctor visit	349
lab tests	26
preventive care	18
thoracic (chest) imaging	22
vaccines	18
X-rays	22

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	92
Female	36

**Age**
From 65 to 74	99
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2013

Hypertension	57
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	24
Depression	0
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	38
Dementia	0
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2014 were blood draw, X-rays, thoracic (chest) imaging and preventive care.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

blood draw	299
doctor visit	414
preventive care	11
thoracic (chest) imaging	26
vaccines	11
X-rays	26

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	95
Female	39

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

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2014

Hypertension	64
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	28
Depression	0
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	37
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2015 were blood draw, preventive care, vaccines and X-rays.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

blood draw	285
doctor visit	467
lab tests	11
preventive care	52
thoracic (chest) imaging	23
vaccines	52
X-rays	23

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	242
Female	96

**Ethnicity**
Non-Hispanic White	312
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	248
From 75 to 84	60
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2015

Hypertension	62
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	31
Depression	11
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	11
Chronic Obstructive Pulmonary Disease	12
Diabetes	37
Dementia	0
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2016 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

blood draw	102
doctor visit	425
preventive care	13
vaccines	13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	138
Female	61

**Ethnicity**
Non-Hispanic White	186
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2016

Hypertension	62
High Cholesterol	64
Stroke	0
Ischemic Heart Disease	30
Depression	13
Chronic Kidney Disease	29
Asthma	14
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	12
Diabetes	37
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2017 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	493
preventive care	32
vaccines	32

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	119
Female	58

**Age**
From 65 to 74	95
From 75 to 84	61
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2017

Hypertension	73
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	38
Depression	16
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	37
Dementia	0
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2018 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	415
preventive care	28
vaccines	28

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	128
Female	59

**Age**
From 65 to 74	99
From 75 to 84	63
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2018

Hypertension	73
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	39
Depression	17
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	0
Atrial Fibrilation	17
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2019 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	437
preventive care	30
vaccines	30

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	127
Female	62

**Age**
From 65 to 74	106
From 75 to 84	56
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2019

Hypertension	71
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	35
Depression	15
Chronic Kidney Disease	32
Asthma	7
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	34
Dementia	7
Cancer	7

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	246
preventive care	45
vaccines	45

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	133
Female	81

**Age**
From 65 to 74	110
From 75 to 84	71
85 and over	19
Less than 65	14

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2020

Hypertension	64
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	33
Depression	16
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	35
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2021 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	360
preventive care	42
vaccines	42

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	139
Female	82

**Age**
From 65 to 74	127
From 75 to 84	61
85 and over	22
Less than 65	11

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2021

Hypertension	69
High Cholesterol	59
Stroke	0
Ischemic Heart Disease	35
Depression	15
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	5
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2022 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	414
preventive care	25
vaccines	25

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	144
Female	77

**Ethnicity**
Non-Hispanic White	209
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	119
From 75 to 84	70
85 and over	19
Less than 65	13

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	33
Depression	14
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	0
Atrial Fibrilation	19
Heart Failure	12
Chronic Obstructive Pulmonary Disease	22
Diabetes	35
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN during 2023 were preventive care and vaccines.

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

doctor visit	418
preventive care	22
vaccines	22

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Male	127
Female	67

**Ethnicity**
Non-Hispanic White	183
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	66
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	29
Depression	18
Chronic Kidney Disease	20
Asthma	8
Osteoperosis	6
Atrial Fibrilation	21
Heart Failure	12
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Mark E. Ritter, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark E. Ritter, MD treated as an internist in Chesterton, IN were blood draw, breast procedures, women's imaging and lab tests.

blood draw	335
breast procedures	60
doctor visit	460
lab tests	59
preventive care	36
thoracic (chest) imaging	34
vaccines	28
women's imaging	60
X-rays	49

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Mark E. Ritter, MD.

**Gender**
Female	59
Male	123

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	74
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
85 and over	5
75 to 84	45
Less than 65	3
65 to 74	112

Average of Total of Conditions of Medicare patients treated by Dr. Mark E. Ritter, MD From 2012 - 2023

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

Hypertension	62
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	29
Depression	11
Chronic Kidney Disease	24
Asthma	4
Osteoporosis	1
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Atrial Fibrillation	10
Dementia	3
Cancer	9

Education & Training

He has a state license in Indiana.

Licensed In: Indiana

Ratings & Reviews

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General Payments

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

**Payments by Company**
Novo Nordisk Inc	$298 Victoza $138	Tresiba $52	RYBELSUS $33	Saxenda $25	Ozempic $16	Other $34
Boehringer Ingelheim Pharmaceuticals, Inc.	$205 COMBIVENT RESPIMAT $50	STIOLTO $47	JARDIANCE $40	TRADJENTA $23	Pradaxa $18	Other $28
Stryker Corporation	$194 IDEAL EYES $156	PROCINCH $38
GlaxoSmithKline, LLC.	$167 BREO $79	TANZEUM $46	ARNUITY $20	ANORO $12	INCRUSE $10
DJO, LLC	$135 DVT VENAPRO $135
Other	$509 INVOKANA $72	Brintellix $43	JARDIANCE $40	XARELTO $37	TRULICITY $36	Other $281