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Dr. James A. Schafer, MD

(James A. Schafer, MD)

(No ratings)

Specializes in: Cardiology (Heart Disease)

University of Michigan Medical School (1991)

901 S. Oakland Street Suite 101
St. Johns, MI 48879

(616) 523-1355

Dr. James A. Schafer, MD is a cardiologist in St. Johns, MI specializing in cardiology (heart disease). He graduated from University of Michigan Medical School in 1991 and has 35 years of experience. Dr. James A. Schafer, MD is affiliated with University of Michigan Health-Sparrow and St. Johns Heart & Vascular | University of Michigan Health-Sparrow.

Office Locations

901 S. Oakland Street Suite 101
St. Johns, MI 48879

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300 Health Park Drive Suite 301
Owosso, MI 48867

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321 E. Harris Street
Charlotte, MI 48813

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245 S. 2nd Street
Carson City, MI 48811

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301 Williamston Center Road
Williamston, MI 48895

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3565 S. State Road
Ionia, MI 48446

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1140 E. Michigan Avenue Suite 400
Lansing, MI 48912

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Noteworthy Medicare Patient Procedures Performed by Dr. James A. Schafer, MD in 2023

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

Top 5%

By Affordability:

cardiac imaging

color Doppler echocardiography

Doppler echocardiography

electrocardiogram

myocardial perfusion SPECT

nuclear scan

nuclear stress test

spectral Doppler echocardiography

SPECT scan

stress EKG

transthoracic echocardiography

In 2023, Dr. James A. Schafer, MD had a list price for cardiac imaging, color Doppler echocardiography, Doppler echocardiography, electrocardiogram (EKG), myocardial perfusion SPECT, nuclear scan, nuclear stress test (myocardial perfusion imaging), spectral Doppler echocardiography, SPECT scan, stress EKG, and transthoracic echocardiography (TTE) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Michigan. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 10%

By Affordability:

echocardiogram

hospital care

inpatient care

inpatient hospital care

transesophageal echocardiography

In 2023, Dr. James A. Schafer, MD had a list price for echocardiogram (echo), hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), and transesophageal echocardiography (TEE) that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Michigan. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Top 25%

By Affordability:

cardiac stress testing

stress testing

In 2012, Dr. James A. Schafer, MD had a list price for cardiac (heart) stress testing, and stress testing that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Michigan. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2012 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	602
doctor visit	841
hospital care	879
inpatient care	824
minimally invasive procedures	14
nuclear scan	67
outpatient care	55
stress testing	293
ultrasound (sonogram)	334

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2013 were hospital care, inpatient care, cardiac procedures and stress testing.

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	601
doctor visit	858
hospital care	698
inpatient care	687
minimally invasive procedures	12
nuclear scan	112
outpatient care	11
stress testing	333
ultrasound (sonogram)	285

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	910
Female	1002

**Ethnicity**
Non-Hispanic White	1679
Black	143
Hispanic	48
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	692
From 75 to 84	604
85 and over	316
Less than 65	300

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2013

Hypertension	75
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	67
Depression	29
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	8
Atrial Fibrilation	26
Heart Failure	42
Chronic Obstructive Pulmonary Disease	27
Diabetes	40
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2014 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	648
cardioversion	11
doctor visit	876
hospital care	558
inpatient care	536
minimally invasive procedures	14
nuclear scan	83
outpatient care	22
stress testing	293
ultrasound (sonogram)	375

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	981
Female	1069

**Ethnicity**
Non-Hispanic White	1816
Black	149
Hispanic	46
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	738
From 75 to 84	621
85 and over	316
Less than 65	375

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2014

Hypertension	75
High Cholesterol	66
Stroke	10
Ischemic Heart Disease	64
Depression	33
Chronic Kidney Disease	40
Asthma	14
Osteoperosis	10
Atrial Fibrilation	30
Heart Failure	42
Chronic Obstructive Pulmonary Disease	29
Diabetes	42
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2015 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	773
cardioversion	12
doctor visit	763
hospital care	607
inpatient care	595
minimally invasive procedures	20
nuclear scan	141
outpatient care	12
stress testing	364
ultrasound (sonogram)	444

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	2084
Female	2072

**Ethnicity**
Non-Hispanic White	3688
Black	294
Hispanic	106
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	1582
From 75 to 84	1218
85 and over	704
Less than 65	652

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2015

Hypertension	75
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	64
Depression	33
Chronic Kidney Disease	42
Asthma	24
Osteoperosis	9
Atrial Fibrilation	30
Heart Failure	44
Chronic Obstructive Pulmonary Disease	30
Diabetes	42
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2016 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	753
cardioversion	17
doctor visit	843
hospital care	564
inpatient care	564
minimally invasive procedures	17
nuclear scan	122
stress testing	333
ultrasound (sonogram)	438

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	1019
Female	1030

**Ethnicity**
Non-Hispanic White	1831
Black	123
Hispanic	44
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	786
From 75 to 84	640
85 and over	320
Less than 65	303

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2016

Hypertension	75
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	64
Depression	34
Chronic Kidney Disease	45
Asthma	33
Osteoperosis	10
Atrial Fibrilation	27
Heart Failure	43
Chronic Obstructive Pulmonary Disease	31
Diabetes	39
Dementia	21
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2017 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	860
cardioversion	25
doctor visit	739
hospital care	674
inpatient care	674
minimally invasive procedures	44
nuclear scan	134
stress testing	340
ultrasound (sonogram)	543

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	935
Female	914

**Ethnicity**
Non-Hispanic White	1657
Black	113
Hispanic	38
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	742
From 75 to 84	562
85 and over	303
Less than 65	242

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	64
Depression	32
Chronic Kidney Disease	45
Asthma	11
Osteoperosis	8
Atrial Fibrilation	30
Heart Failure	40
Chronic Obstructive Pulmonary Disease	27
Diabetes	39
Dementia	19
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2018 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	874
cardioversion	14
doctor visit	706
hospital care	492
inpatient care	471
minimally invasive procedures	27
nuclear scan	158
outpatient care	21
stress testing	353
ultrasound (sonogram)	537

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	785
Female	769

**Ethnicity**
Non-Hispanic White	1397
Black	85
Hispanic	34
Asian	0
Other	27
Native American	0

**Age**
From 65 to 74	637
From 75 to 84	500
85 and over	232
Less than 65	185

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2018

Hypertension	75
High Cholesterol	67
Stroke	9
Ischemic Heart Disease	66
Depression	32
Chronic Kidney Disease	44
Asthma	11
Osteoperosis	10
Atrial Fibrilation	29
Heart Failure	39
Chronic Obstructive Pulmonary Disease	26
Diabetes	39
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2019 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

blood draw	142
cardiac procedures	889
cardioversion	24
doctor visit	805
hospital care	648
inpatient care	630
lab tests	144
minimally invasive procedures	26
nuclear scan	170
outpatient care	18
stress testing	362
ultrasound (sonogram)	527

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	805
Female	792

**Ethnicity**
Non-Hispanic White	1418
Black	82
Hispanic	32
Asian	0
Other	47
Native American	0

**Age**
From 65 to 74	671
From 75 to 84	510
85 and over	221
Less than 65	195

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2019

Hypertension	75
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	65
Depression	32
Chronic Kidney Disease	47
Asthma	11
Osteoperosis	9
Atrial Fibrilation	30
Heart Failure	42
Chronic Obstructive Pulmonary Disease	27
Diabetes	41
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2020 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	564
cardioversion	15
doctor visit	453
hospital care	340
inpatient care	340
minimally invasive procedures	13
nuclear scan	95
stress testing	208
ultrasound (sonogram)	356

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	572
Female	557

**Ethnicity**
Non-Hispanic White	1014
Black	54
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	465
From 75 to 84	363
85 and over	156
Less than 65	145

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2020

Hypertension	75
High Cholesterol	71
Stroke	13
Ischemic Heart Disease	65
Depression	32
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	9
Atrial Fibrilation	30
Heart Failure	42
Chronic Obstructive Pulmonary Disease	26
Diabetes	39
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2021 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	491
cardioversion	14
doctor visit	474
hospital care	274
inpatient care	274
nuclear scan	114
stress testing	235
ultrasound (sonogram)	256

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	733
Female	680

**Ethnicity**
Non-Hispanic White	1247
Black	76
Hispanic	29
Asian	0
Other	38
Native American	0

**Age**
From 65 to 74	576
From 75 to 84	429
85 and over	224
Less than 65	184

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2021

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	60
Depression	32
Chronic Kidney Disease	45
Asthma	10
Osteoperosis	10
Atrial Fibrilation	39
Heart Failure	40
Chronic Obstructive Pulmonary Disease	25
Diabetes	40
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI during 2022 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

cardiac procedures	457
cardioversion	16
doctor visit	416
hospital care	253
inpatient care	253
minimally invasive procedures	16
nuclear scan	87
stress testing	191
ultrasound (sonogram)	266

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	517
Female	523

**Ethnicity**
Non-Hispanic White	933
Black	39
Hispanic	23
Asian	15
Other	30
Native American	0

**Age**
From 65 to 74	402
From 75 to 84	352
85 and over	168
Less than 65	118

Conditions of Medicare patients treated by Dr. James A. Schafer, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	54
Depression	29
Chronic Kidney Disease	35
Asthma	12
Osteoperosis	11
Atrial Fibrilation	45
Heart Failure	38
Chronic Obstructive Pulmonary Disease	27
Diabetes	38
Dementia	11
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. James A. Schafer, MD for Medicare patients.

The highest averages for the top procedures that Dr. James A. Schafer, MD treated as a cardiologist in St. Johns, MI were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

blood draw	142
cardiac procedures	682
cardioversion	16
doctor visit	706
hospital care	544
inpatient care	531
lab tests	144
minimally invasive procedures	20
nuclear scan	116
outpatient care	23
stress testing	300
ultrasound (sonogram)	396

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. James A. Schafer, MD.

**Gender**
Male	849
Female	855

**Ethnicity**
Black / African American	105
Asian / Pacific Islander	1
Non-Hispanic White	1516
Native American / Alaskan Native	0
Hispanic	39
Other	27

**Age**
75 to 84	527
85 and over	269
Less than 65	245
65 to 74	662

Average of Total of Conditions of Medicare patients treated by Dr. James A. Schafer, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	61
Stroke	9
Ischemic Heart Disease	57
Depression	28
Chronic Kidney Disease	38
Asthma	13
Osteoporosis	8
Heart Failure	37
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Atrial Fibrillation	28
Dementia	15
Cancer	12

Education & Training

Dr. James A. Schafer, MD graduated from University of Michigan Medical School in 1991. He completed residency at University of Texas Southwestern Medical Center at Dallas and Affiliated Hospitals. He is certified by the American Board of Internal Medicine - American Board of Internal Medicine - IM, Cardiovascular Disease and has a state license in Michigan.

Medical School: University of Michigan Medical School (1991)

Residency: University of Texas Southwestern Medical Center at Dallas and Affiliated Hospitals (1994)

Board Certification: American Board of Internal Medicine - American Board of Internal Medicine - IM, Cardiovascular Disease

Licensed In: Michigan

Affiliations & Hospitals

Dr. James A. Schafer, MD is associated with these hospitals and organizations:

University of Michigan Health-Sparrow

St. Johns Heart & Vascular | University of Michigan Health-Sparrow

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General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$384 Electrophysiology $332	CRM $52
Merck Sharp & Dohme Corporation	$191 ZETIA $191
Edwards Lifesciences Corporation	$84 Edwards SAPIEN 3 Transcatheter Heart Valve $84
Abbott Laboratories	$75 Vascular $75
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$62 LifeVest $62
Other	$220 Effient $44	Pradaxa $38	SAMSCA $23	XARELTO $23	ELIQUIS $22	Other $72

**Types of Payments**
Food and Beverage	$838
Education	$179

Biography

Dr. James Schafer is a cardiology (heart disease) specialist in Lansing, MI, Saint Johns, MI, and Owosso, MI. He is affiliated with the University of Michigan Health-Sparrow and Memorial Hospital. Before performing his residency at a hospital affiliated with the University of Texas Southwestern Medical Center at Dallas, Dr. Schafer attended the University of Michigan Medical School.