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Dr. Mark Stephan Ostrem, MD

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Specializes in: Internal Medicine (Adult Medicine) and Geriatrics (Elderly Care)

54 Miller Street Suite 300
Quincy, MA 02169

(617) 481-3300

Dr. Mark Stephan Ostrem, MD is an internist in Quincy, MA specializing in internal medicine (adult medicine) and geriatrics (elderly care).

Office Locations

54 Miller Street Suite 300
Quincy, MA 02169

(617) 481-3300

(617) 481-3305

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In The News

“HubbyaEUR(tm)s primary care physician, Dr. Mark Ostrem, and my primary care physician, Dr. Deborah OaEUR(tm)Keefe, were to be two of the three speakers.”—"User menu", Dorchester Reporter, May 2009

Noteworthy Medicare Patient Procedures Performed by Dr. Mark Stephan Ostrem, MD in 2024

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

Top 25%

By Volume:

nursing home care

In 2012, Dr. Mark Stephan Ostrem, MD performed more nursing home care procedures for Medicare patients than 75% of providers in related specialties within Massachusetts.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2012 were nursing home care, hospital care and inpatient care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

doctor visit	837
hospital care	323
inpatient care	323
nursing home care	1281

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2013 were lab tests, nursing home care, preventive care and blood draw.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	530
diabetes management	167
doctor visit	920
lab tests	2357
nursing home care	1769
preventive care	824
thyroid function tests	204
vaccines	144

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	253
Female	259

**Ethnicity**
Non-Hispanic White	426
Black	62
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	143
From 75 to 84	151
85 and over	113
Less than 65	105

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2013

Hypertension	71
High Cholesterol	58
Stroke	9
Ischemic Heart Disease	33
Depression	42
Chronic Kidney Disease	29
Asthma	9
Osteoperosis	17
Atrial Fibrilation	16
Heart Failure	26
Chronic Obstructive Pulmonary Disease	28
Diabetes	35
Dementia	40
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2014 were lab tests, nursing home care, preventive care and blood draw.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

aspiration	15
blood draw	730
diabetes management	184
doctor visit	866
injections	15
lab tests	2326
nursing home care	1916
preventive care	887
thyroid function tests	170
vaccines	193

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	259
Female	265

**Ethnicity**
Non-Hispanic White	435
Black	62
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	137
85 and over	121
Less than 65	107

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2014

Hypertension	68
High Cholesterol	58
Stroke	9
Ischemic Heart Disease	33
Depression	40
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	23
Diabetes	34
Dementia	38
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2015 were lab tests, nursing home care, preventive care and blood draw.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	655
diabetes management	153
doctor visit	887
ear procedures	14
lab tests	1929
nursing home care	1882
preventive care	705
thyroid function tests	164
vaccines	167

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	484
Female	494

**Ethnicity**
Non-Hispanic White	814
Black	108
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	320
From 75 to 84	228
85 and over	222
Less than 65	208

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2015

Hypertension	68
High Cholesterol	58
Stroke	13
Ischemic Heart Disease	33
Depression	39
Chronic Kidney Disease	30
Asthma	12
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	22
Chronic Obstructive Pulmonary Disease	25
Diabetes	33
Dementia	36
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2016 were lab tests, nursing home care, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	673
diabetes management	169
doctor visit	917
lab tests	1822
nursing home care	1477
preventive care	574
thyroid function tests	131
vaccines	130

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	240
Female	236

**Ethnicity**
Non-Hispanic White	394
Black	57
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	110
85 and over	107
Less than 65	101

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2016

Hypertension	63
High Cholesterol	50
Stroke	7
Ischemic Heart Disease	33
Depression	29
Chronic Kidney Disease	31
Asthma	18
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	36
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2017 were lab tests, nursing home care, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	670
chronic care	21
diabetes management	157
doctor visit	873
lab tests	1750
nursing home care	1655
preventive care	515
thyroid function tests	111
vaccines	118

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	246
Female	229

**Ethnicity**
Non-Hispanic White	398
Black	49
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	157
From 75 to 84	111
85 and over	109
Less than 65	98

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2017

Hypertension	69
High Cholesterol	45
Stroke	10
Ischemic Heart Disease	33
Depression	31
Chronic Kidney Disease	36
Asthma	5
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	36
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2018 were nursing home care, lab tests, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	567
chronic care	406
diabetes management	146
doctor visit	734
lab tests	1579
nursing home care	1783
preventive care	475
thyroid function tests	102
vaccines	118

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	253
Female	213

**Ethnicity**
Non-Hispanic White	384
Black	52
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	157
From 75 to 84	111
85 and over	104
Less than 65	94

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2018

Hypertension	66
High Cholesterol	56
Stroke	9
Ischemic Heart Disease	33
Depression	30
Chronic Kidney Disease	39
Asthma	4
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	39
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2019 were nursing home care, lab tests, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	486
chronic care	401
diabetes management	139
doctor visit	664
lab tests	1322
nursing home care	1779
preventive care	422
thyroid function tests	73
vaccines	84

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	259
Female	228

**Ethnicity**
Non-Hispanic White	400
Black	53
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	127
85 and over	118
Less than 65	87

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2019

Hypertension	65
High Cholesterol	57
Stroke	14
Ischemic Heart Disease	36
Depression	38
Chronic Kidney Disease	39
Asthma	5
Osteoperosis	10
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	41
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2020 were nursing home care, lab tests, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	453
chronic care	383
diabetes management	149
doctor visit	551
lab tests	1329
nursing home care	2101
preventive care	424
thyroid function tests	77
vaccines	89

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	261
Female	187

**Ethnicity**
Non-Hispanic White	375
Black	45
Hispanic	0
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	116
85 and over	96
Less than 65	88

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2020

Hypertension	67
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	39
Depression	42
Chronic Kidney Disease	42
Asthma	4
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	25
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	41
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2021 were nursing home care, lab tests, blood draw and preventive care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

blood draw	338
chronic care	216
diabetes management	93
doctor visit	369
lab tests	895
nursing home care	1964
preventive care	238
thyroid function tests	59

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	242
Female	182

**Ethnicity**
Non-Hispanic White	361
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	116
85 and over	79
Less than 65	70

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2021

Hypertension	69
High Cholesterol	61
Stroke	11
Ischemic Heart Disease	39
Depression	42
Chronic Kidney Disease	40
Asthma	7
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	35
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2022 were nursing home care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

nursing home care	2219

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	112
Female	110

**Ethnicity**
Non-Hispanic White	187
Black	16
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	72
85 and over	47
Less than 65	47

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2022

Hypertension	75
High Cholesterol	63
Stroke	22
Ischemic Heart Disease	36
Depression	61
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	23
Atrial Fibrilation	26
Heart Failure	33
Chronic Obstructive Pulmonary Disease	26
Diabetes	35
Dementia	50
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2023 were nursing home care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

nursing home care	2079

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	102
Female	107

**Ethnicity**
Non-Hispanic White	179
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	51
From 75 to 84	59
85 and over	51
Less than 65	48

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2023

Hypertension	73
High Cholesterol	63
Stroke	16
Ischemic Heart Disease	34
Depression	62
Chronic Kidney Disease	30
Asthma	8
Osteoperosis	23
Atrial Fibrilation	28
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Dementia	47
Cancer	14

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA during 2024 were nursing home care.

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

nursing home care	1871

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	102
Female	113

**Ethnicity**
Non-Hispanic White	174
Black	22
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	51
85 and over	59
Less than 65	49

Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD in 2024

Hypertension	71
High Cholesterol	63
Stroke	18
Ischemic Heart Disease	30
Depression	58
Chronic Kidney Disease	32
Asthma	11
Osteoperosis	25
Atrial Fibrilation	23
Heart Failure	32
Chronic Obstructive Pulmonary Disease	23
Diabetes	31
Dementia	54
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Mark Stephan Ostrem, MD for Medicare patients.

The highest averages for the top procedures that Dr. Mark Stephan Ostrem, MD treated as an internist in Quincy, MA were nursing home care, lab tests, blood draw and preventive care.

aspiration	15
blood draw	566
chronic care	285
diabetes management	150
doctor visit	761
ear procedures	14
hospital care	323
injections	15
inpatient care	323
lab tests	1701
nursing home care	1828
preventive care	562
thyroid function tests	121
vaccines	130

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Mark Stephan Ostrem, MD.

**Gender**
Male	216
Female	201

**Ethnicity**
Black / African American	44
Asian / Pacific Islander	0
Non-Hispanic White	348
Native American / Alaskan Native	0
Hispanic	0
Other	8

**Age**
75 to 84	106
85 and over	94
Less than 65	84
65 to 74	132

Average of Total of Conditions of Medicare patients treated by Dr. Mark Stephan Ostrem, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Mark Stephan Ostrem, MD treated were hypertension, high cholesterol, depression and dementia.

Hypertension	63
High Cholesterol	53
Stroke	11
Ischemic Heart Disease	31
Depression	39
Chronic Kidney Disease	31
Asthma	7
Osteoporosis	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	20
Diabetes	29
Atrial Fibrillation	15
Cancer	11
Dementia	37

Education & Training

He has a state license in Massachusetts.

Licensed In: Massachusetts

Ratings & Reviews

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General Payments

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

**Payments by Company**
Neurocrine Biosciences, Inc.	$191 INGREZZA $191
Avanir Pharmaceuticals, Inc.	$89 Nuedexta $89
Janssen Pharmaceuticals, Inc	$77 XARELTO $77
Sunovion Pharmaceuticals Inc.	$46 APTIOM $46