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Home > MI Providers > Orthopedic Surgeons

Dr. William J. Comai, DO

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Specializes in: Orthopedics/Orthopedic Surgery

Michigan State University College of Osteopathic Medicine (1988)

203 Winston Drive
Marshall, MI 49068

(269) 789-4380

Dr. William J. Comai, DO is an orthopedist in Marshall, MI specializing in orthopedics/orthopedic surgery. He graduated from Michigan State University College of Osteopathic Medicine in 1988 and has 38 years of experience. Dr. William J. Comai, DO is affiliated with ELLA E.M. BROWN CHARITABLE CIRCLE DBA OAKLAWN HOSPITAL and BRONSON BATTLE CREEK HOSPITAL.

Office Locations

203 Winston Drive
Marshall, MI 49068

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5352 Beckley Road Suite A
Battle Creek, MI 49015

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Noteworthy Medicare Patient Procedures Performed by Dr. William J. Comai, DO in 2023

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

Top 5%

By Affordability:

spine imaging

spine X-ray

wrist X-ray

In 2023, Dr. William J. Comai, DO had a list price for spine imaging, spine X-ray, and wrist X-ray 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:

joint X-ray

knee X-ray

X-rays

In 2023, Dr. William J. Comai, DO had a list price for joint X-ray, knee X-ray, and X-rays 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 Volume:

joint aspiration

joint injections

In 2012, Dr. William J. Comai, DO performed more joint aspiration, and joint injections procedures for Medicare patients than 75% of providers in related specialties within Michigan.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2012 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	370
decompression surgery	34
doctor visit	937
fracture surgery	16
hip imaging	113
hospital care	46
injections	370
inpatient care	46
joint surgery	49
lower extremity surgery	49
musculoskeletal imaging	304
nerve procedures	17
open surgery	63
pelvic imaging	33
reconstructive surgery	49
upper extremity surgery	47
X-rays	337

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2013 were X-rays, aspiration, injections and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	365
doctor visit	896
fracture surgery	13
hip imaging	117
hospital care	64
implant removal	11
injections	365
inpatient care	64
joint surgery	82
lower extremity surgery	82
minimally invasive procedures	11
musculoskeletal imaging	352
open surgery	13
pelvic imaging	47
reconstructive surgery	71
X-rays	399

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	226
Female	439

**Ethnicity**
Non-Hispanic White	597
Black	43
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	190
85 and over	91
Less than 65	153

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2013

Hypertension	71
High Cholesterol	58
Stroke	5
Ischemic Heart Disease	34
Depression	25
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	33
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2014 were X-rays, musculoskeletal imaging, aspiration and injections.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	438
decompression surgery	12
doctor visit	1163
hip imaging	135
hospital care	57
implant removal	15
injections	438
inpatient care	57
joint surgery	99
lower extremity surgery	99
musculoskeletal imaging	499
nerve procedures	12
open surgery	25
pelvic imaging	61
reconstructive surgery	99
spinal procedures	16
upper extremity surgery	25
X-rays	576

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	270
Female	555

**Ethnicity**
Non-Hispanic White	732
Black	68
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	316
From 75 to 84	218
85 and over	105
Less than 65	186

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2014

Hypertension	70
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	33
Depression	29
Chronic Kidney Disease	23
Asthma	9
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2015 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	340
decompression surgery	19
doctor visit	1079
fracture surgery	12
hip imaging	114
hospital care	53
injections	358
inpatient care	53
joint surgery	60
lower extremity surgery	72
musculoskeletal imaging	290
nerve procedures	19
open surgery	19
pelvic imaging	48
reconstructive surgery	60
upper extremity surgery	19
X-rays	338

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	486
Female	1010

**Ethnicity**
Non-Hispanic White	1302
Black	156
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	564
From 75 to 84	384
85 and over	226
Less than 65	322

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2015

Hypertension	69
High Cholesterol	55
Stroke	5
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	24
Asthma	14
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	22
Chronic Obstructive Pulmonary Disease	20
Diabetes	33
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2016 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	359
debridement (removal of unhealthy tissue)	13
decompression surgery	26
doctor visit	1183
hospital care	45
injections	359
inpatient care	45
joint surgery	67
lower extremity surgery	67
minimally invasive procedures	13
musculoskeletal imaging	121
nerve procedures	15
open surgery	26
pelvic imaging	12
reconstructive surgery	54
spinal procedures	18
upper extremity surgery	26
X-rays	151

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	241
Female	469

**Ethnicity**
Non-Hispanic White	619
Black	68
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	271
From 75 to 84	211
85 and over	108
Less than 65	120

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2016

Hypertension	73
High Cholesterol	58
Stroke	3
Ischemic Heart Disease	32
Depression	27
Chronic Kidney Disease	33
Asthma	22
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	35
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2017 were aspiration, injections, musculoskeletal imaging and X-rays.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	318
decompression surgery	30
doctor visit	924
hospital care	20
injections	318
inpatient care	20
joint surgery	46
lower extremity surgery	46
musculoskeletal imaging	101
nerve procedures	15
open surgery	46
reconstructive surgery	46
upper extremity surgery	46
X-rays	101

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	208
Female	391

**Ethnicity**
Non-Hispanic White	511
Black	71
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	167
85 and over	85
Less than 65	107

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2017

Hypertension	73
High Cholesterol	56
Stroke	4
Ischemic Heart Disease	31
Depression	26
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2018 were aspiration, injections, X-rays and lower extremity surgery.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	301
decompression surgery	14
doctor visit	946
hospital care	17
injections	301
inpatient care	17
joint surgery	46
lower extremity surgery	46
musculoskeletal imaging	40
nerve procedures	14
open surgery	14
reconstructive surgery	46
spinal procedures	23
upper extremity surgery	14
X-rays	85

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	199
Female	356

**Ethnicity**
Non-Hispanic White	515
Black	18
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	186
85 and over	58
Less than 65	70

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2018

Hypertension	74
High Cholesterol	64
Stroke	3
Ischemic Heart Disease	34
Depression	29
Chronic Kidney Disease	37
Asthma	8
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2019 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	320
computer assisted surgery (CAS)	17
decompression surgery	15
doctor visit	877
hospital care	22
injections	341
inpatient care	22
joint surgery	60
lower extremity surgery	60
musculoskeletal imaging	137
nerve procedures	15
open surgery	15
reconstructive surgery	60
upper extremity surgery	15
X-rays	149

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	195
Female	343

**Ethnicity**
Non-Hispanic White	498
Black	19
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	225
From 75 to 84	173
85 and over	64
Less than 65	76

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2019

Hypertension	75
High Cholesterol	63
Stroke	4
Ischemic Heart Disease	34
Depression	33
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	20
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2020 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	256
computer assisted surgery (CAS)	24
doctor visit	595
injections	275
joint surgery	50
lower extremity surgery	50
musculoskeletal imaging	78
reconstructive surgery	50
spinal procedures	15
X-rays	93

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	145
Female	266

**Ethnicity**
Non-Hispanic White	372
Black	25
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	120
85 and over	51
Less than 65	57

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2020

Hypertension	69
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	28
Depression	24
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	34
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2021 were injections, aspiration, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	267
computer assisted surgery (CAS)	17
decompression surgery	16
doctor visit	622
injections	284
joint surgery	32
lower extremity surgery	32
musculoskeletal imaging	90
nerve procedures	16
open surgery	16
reconstructive surgery	32
upper extremity surgery	16
X-rays	90

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	143
Female	240

**Ethnicity**
Non-Hispanic White	351
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	180
From 75 to 84	124
85 and over	42
Less than 65	37

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2021

Hypertension	73
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	32
Depression	29
Chronic Kidney Disease	36
Asthma	8
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	36
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI during 2022 were aspiration, injections, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

aspiration	194
computer assisted surgery (CAS)	19
decompression surgery	17
doctor visit	479
injections	194
joint surgery	34
lower extremity surgery	34
musculoskeletal imaging	88
nerve procedures	17
open surgery	17
reconstructive surgery	34
spinal procedures	14
upper extremity surgery	17
X-rays	115

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	127
Female	199

**Ethnicity**
Non-Hispanic White	302
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	118
85 and over	45
Less than 65	22

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2022

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	26
Depression	30
Chronic Kidney Disease	26
Asthma	11
Osteoperosis	18
Atrial Fibrilation	17
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	33
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William J. Comai, DO for Medicare patients.

The highest averages for the top procedures that Dr. William J. Comai, DO treated as an orthopedist in Marshall, MI were injections, aspiration, X-rays and musculoskeletal imaging.

aspiration	320
computer assisted surgery (CAS)	19
debridement (removal of unhealthy tissue)	13
decompression surgery	20
doctor visit	881
fracture surgery	13
hip imaging	119
hospital care	40
implant removal	13
injections	327
inpatient care	40
joint surgery	56
lower extremity surgery	57
minimally invasive procedures	12
musculoskeletal imaging	190
nerve procedures	15
open surgery	25
pelvic imaging	40
reconstructive surgery	54
spinal procedures	17
upper extremity surgery	25
X-rays	221

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William J. Comai, DO.

**Gender**
Male	203
Female	388

**Ethnicity**
Black / African American	43
Asian / Pacific Islander	0
Non-Hispanic White	527
Native American / Alaskan Native	0
Hispanic	2
Other	0

**Age**
75 to 84	171
85 and over	79
Less than 65	104
65 to 74	235

Average of Total of Conditions of Medicare patients treated by Dr. William J. Comai, DO From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William J. Comai, DO treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	65
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	28
Depression	25
Chronic Kidney Disease	28
Asthma	9
Osteoporosis	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Atrial Fibrillation	10
Dementia	8
Cancer	9

Education & Training

Dr. William J. Comai, DO graduated from Michigan State University College of Osteopathic Medicine in 1988. He completed residency at St Mary'S Mercy Med Ctr, Orthopedic Surgery; St Mary'S Mercy Med Ctr, Flexible Or Transitional Year. He is certified by the American Board of Orthopaedic Surgery and has a state license in Michigan.

Medical School: Michigan State University College of Osteopathic Medicine (1988)

Residency: St Mary'S Mercy Med Ctr, Orthopedic Surgery; St Mary'S Mercy Med Ctr, Flexible Or Transitional Year

Board Certification: American Board of Orthopaedic Surgery

Licensed In: Michigan

Affiliations & Hospitals

Dr. William J. Comai, DO is associated with these hospitals and organizations:

ELLA E.M. BROWN CHARITABLE CIRCLE DBA OAKLAWN HOSPITAL

BRONSON BATTLE CREEK HOSPITAL

Ratings & Reviews

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General Payments

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

**Payments by Company**
SANOFI-AVENTIS U.S. LLC	$157 SYNVISC-ONE $94	Osteoarthritis of the knee $63
Stryker Corporation	$135 Mako $87	TRAUMA & EXTREMITIES $48
DePuy Synthes Sales Inc.	$108 GLOBAL $50	ATTUNE $47	Knee $11
Smith & Nephew, Inc.	$101 Wound Matrix $49	Pico $38	MULTIFIX S $15
Ferring Pharmaceuticals Inc.	$85 EUFLEXXA $85
Other	$710 PREVENA $70	Auvi-Q $67	Exogen $63	ORTHOLOC $61	Zilretta $50	Other $399

**Types of Payments**
Food and Beverage	$1,296

Biography

Dr. William Comai's specialty is orthopedics/orthopedic surgery. He graduated from Michigan State University College of Osteopathic Medicine. According to Doctor.com, new patients are welcome to contact Dr. Comai's office in Marshall, MI.

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Dr. William J. Comai, DO

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. William J. Comai, DO in 2023

By Affordability:

By Affordability:

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. William J. Comai, DO in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. William J. Comai, DO From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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