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Home > MI Providers > Family Physicians & Family Medicine Specialists

Dr. Patrick R. Brennan, DO

Accepting New Patients

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Specializes in: Family Medicine

Michigan State University College of Osteopathic Medicine (2001)

22024 Pontiac Trail
South Lyon, MI 48178

(248) 437-2525

Dr. Patrick R. Brennan, DO is a family medicine practitioner in South Lyon, MI specializing in family medicine. He graduated from Michigan State University College of Osteopathic Medicine in 2001 and has 25 years of experience. Dr. Patrick R. Brennan, DO is affiliated with Henry Ford Health, Trinity Health and Henry Ford Providence Southfield & Novi Hospitals.

Office Locations

10 Mile Road 12660
South Lyon, MI 48178

open_in_new

Henry Ford Providence Southfield & Novi Hospitals

12660 Ten Mile Road
South Lyon, MI 48178

(248) 437-2525

open_in_new

22024 Pontiac Trail
South Lyon, MI 48178

(248) 437-2525

(248) 437-2526

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Noteworthy Medicare Patient Procedures Performed by Dr. Patrick R. Brennan, DO in 2023

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

Top 5%

By Volume:

lab tests

By Affordability:

urinalysis

urine culture

In 2023, among providers in related specialties within Michigan, Dr. Patrick R. Brennan, DO performed more lab tests procedures for Medicare patients than 95% of them and he also had a list price for urinalysis, and urine culture that was lower than the list prices billed to Medicare by 95% of them. 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 Volume:

blood draw

phlebotomy for lab tests

preventive care

By Affordability:

C-reactive protein testing

phosphorus blood test

phosphorus test

In 2023, among providers in related specialties within Michigan, Dr. Patrick R. Brennan, DO performed more blood draw, phlebotomy for lab tests, and preventive care procedures for Medicare patients than 90% of them and he also had a list price for C-reactive protein testing, phosphorus blood test, and phosphorus test that was lower than the list prices billed to Medicare by 90% of them. 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:

A1C test

complete blood count

By Affordability:

total creatine kinase test

In 2012, among providers in related specialties within Michigan, Dr. Patrick R. Brennan, DO performed more A1C test, and complete blood count (CBC) procedures for Medicare patients than 75% of them and he also had a list price for total creatine kinase test that was lower than the list prices billed to Medicare by 75% of them. 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. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2012 were blood draw, preventive care, vaccines and aspiration.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	54
blood draw	549
doctor visit	1128
injections	54
lab tests	49
musculoskeletal imaging	11
preventive care	106
removal of lesion (e.g. growth)	18
skin procedures	18
thoracic (chest) imaging	31
vaccines	106
X-rays	42

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2013 were blood draw, preventive care, vaccines and lab tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	64
blood draw	625
diabetes management	15
doctor visit	1308
ear procedures	14
injections	64
lab tests	78
musculoskeletal imaging	14
preventive care	132
removal of lesion (e.g. growth)	23
skin procedures	23
thoracic (chest) imaging	23
vaccines	132
X-rays	37

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	118
Female	171

**Age**
From 65 to 74	93
From 75 to 84	104
85 and over	55
Less than 65	37

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2013

Hypertension	59
High Cholesterol	41
Stroke	5
Ischemic Heart Disease	34
Depression	13
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	4
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	13
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2014 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	68
blood draw	593
diabetes management	56
doctor visit	1153
ear procedures	14
injections	68
lab tests	1098
preventive care	310
thoracic (chest) imaging	19
thyroid function tests	168
vaccines	123
X-rays	19

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	119
Female	177

**Age**
From 65 to 74	110
From 75 to 84	93
85 and over	55
Less than 65	38

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2014

Hypertension	63
High Cholesterol	43
Stroke	5
Ischemic Heart Disease	28
Depression	16
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	26
Dementia	13
Cancer	7

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2015 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	37
blood draw	526
diabetes management	111
doctor visit	957
injections	37
lab tests	1613
preventive care	464
removal of lesion (e.g. growth)	11
skin procedures	11
thyroid function tests	290
vaccines	134

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	208
Female	332

**Age**
From 65 to 74	206
From 75 to 84	158
85 and over	114
Less than 65	62

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2015

Hypertension	68
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	30
Depression	13
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	0
Atrial Fibrilation	9
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	27
Dementia	13
Cancer	9

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2016 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	35
blood draw	568
diabetes management	122
doctor visit	1026
ear procedures	13
injections	35
lab tests	2559
preventive care	563
removal of lesion (e.g. growth)	12
skin procedures	12
thyroid function tests	442
vaccines	134

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	109
Female	168

**Age**
From 65 to 74	118
From 75 to 84	80
85 and over	50
Less than 65	29

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2016

Hypertension	67
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	30
Depression	17
Chronic Kidney Disease	27
Asthma	16
Osteoperosis	5
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	18
Diabetes	28
Dementia	15
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2017 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	50
blood draw	569
diabetes management	165
doctor visit	1049
injections	50
lab tests	2975
preventive care	658
removal of lesion (e.g. growth)	15
skin procedures	15
thyroid function tests	533
vaccines	156

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	120
Female	183

**Ethnicity**
Non-Hispanic White	291
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	89
85 and over	59
Less than 65	32

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2017

Hypertension	72
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	32
Depression	16
Chronic Kidney Disease	33
Asthma	6
Osteoperosis	4
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	20
Diabetes	30
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2018 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	45
blood draw	602
diabetes management	167
doctor visit	1084
injections	45
lab tests	3270
preventive care	730
thyroid function tests	512
vaccines	162

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	129
Female	199

**Ethnicity**
Non-Hispanic White	313
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	97
85 and over	61
Less than 65	33

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2018

Hypertension	68
High Cholesterol	64
Stroke	8
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	32
Asthma	4
Osteoperosis	4
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2019 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	35
blood draw	642
diabetes management	163
doctor visit	1036
injections	35
lab tests	2975
preventive care	598
thyroid function tests	520
vaccines	132

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	135
Female	178

**Ethnicity**
Non-Hispanic White	298
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	89
85 and over	53
Less than 65	31

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2019

Hypertension	66
High Cholesterol	58
Stroke	9
Ischemic Heart Disease	30
Depression	24
Chronic Kidney Disease	35
Asthma	4
Osteoperosis	5
Atrial Fibrilation	12
Heart Failure	26
Chronic Obstructive Pulmonary Disease	25
Diabetes	26
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2020 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	35
blood draw	517
diabetes management	142
doctor visit	924
injections	35
lab tests	2855
preventive care	505
thyroid function tests	450
vaccines	98

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	127
Female	150

**Ethnicity**
Non-Hispanic White	265
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	71
85 and over	48
Less than 65	26

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2020

Hypertension	68
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	34
Depression	22
Chronic Kidney Disease	32
Asthma	0
Osteoperosis	5
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	21
Diabetes	27
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2021 were lab tests, blood draw, preventive care and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	20
blood draw	455
diabetes management	95
doctor visit	662
injections	20
lab tests	2292
preventive care	375
thyroid function tests	197
vaccines	68

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	113
Female	148

**Age**
From 65 to 74	125
From 75 to 84	67
85 and over	40
Less than 65	29

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2021

Hypertension	62
High Cholesterol	54
Stroke	5
Ischemic Heart Disease	32
Depression	21
Chronic Kidney Disease	34
Asthma	4
Osteoperosis	7
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	19
Diabetes	28
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI during 2022 were lab tests, preventive care, blood draw and thyroid function tests.

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

aspiration	15
blood draw	196
diabetes management	95
doctor visit	558
injections	15
lab tests	1883
preventive care	304
thyroid function tests	177
vaccines	51

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	116
Female	127

**Age**
From 65 to 74	122
From 75 to 84	58
85 and over	38
Less than 65	25

Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO in 2022

Hypertension	67
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	18
Chronic Obstructive Pulmonary Disease	23
Diabetes	29
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Patrick R. Brennan, DO for Medicare patients.

The highest averages for the top procedures that Dr. Patrick R. Brennan, DO treated as a family medicine practitioner in South Lyon, MI were lab tests, blood draw, preventive care and thyroid function tests.

aspiration	41
blood draw	531
diabetes management	113
doctor visit	989
ear procedures	13
injections	41
lab tests	1967
musculoskeletal imaging	12
preventive care	431
removal of lesion (e.g. growth)	15
skin procedures	15
thoracic (chest) imaging	24
thyroid function tests	365
vaccines	117
X-rays	32

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Patrick R. Brennan, DO.

**Gender**
Male	117
Female	166

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	106
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	82
85 and over	52
Less than 65	31
65 to 74	118

Average of Total of Conditions of Medicare patients treated by Dr. Patrick R. Brennan, DO From 2012 - 2022

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

Hypertension	60
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	27
Depression	16
Chronic Kidney Disease	24
Asthma	4
Osteoporosis	3
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Atrial Fibrillation	10
Cancer	8
Dementia	10

Education & Training

Dr. Patrick R. Brennan, DO graduated from Michigan State University College of Osteopathic Medicine in 2001. He completed residency at Beaumont Hospitals. He is certified by the AOBFP-American Osteopathic Board Of Family Physicians - Family Medicine and has a state license in Michigan.

Medical School: Michigan State University College of Osteopathic Medicine (2001)

Residency: Beaumont Hospitals (2002)

Board Certification: AOBFP-American Osteopathic Board Of Family Physicians - Family Medicine

Licensed In: Michigan

Affiliations & Hospitals

Dr. Patrick R. Brennan, DO is associated with these hospitals and organizations:

Henry Ford Health

Trinity Health

Henry Ford Providence Southfield & Novi Hospitals

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Patrick R. Brennan, DO appears to accept the following insurance providers: BCN HMO.

Insurance Accepted by Provider includes:

According to our sources, Dr. Patrick R. Brennan, DO accepts the following insurance providers:

BCN HMO

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General Payments

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

**Payments by Company**
Pfizer Inc.	$404 EUCRISA $117	CHANTIX $47	LYRICA $43	ELIQUIS $41	NURTEC ODT $38	Other $118
Astellas Pharma US Inc	$198 $198
Alcon Laboratories Inc	$108 Simbrinza $108
Renaissance Pharma, Inc.	$107 Denavir $107
Novo Nordisk Inc	$77 Victoza $44	Ozempic $15	$19
Other	$324 NURTEC ODT $66	ZENPEP $47	BREZTRI $44	Xyrem $26	TRELEGY ELLIPTA $26	Other $115

**Types of Payments**
Food and Beverage	$1,019
Education	$199

Biography

Dr. Patrick Brennan's medical specialty is family medicine. In Dr. Brennan's practice, he is particularly interested in primary care. His professional affiliations include Trinity Health and Henry Ford Health. According to Trinity Health, he is currently accepting new patients at his office in South Lyon, MI. Dr. Brennan studied medicine at Michigan State University College of Osteopathic Medicine. His residency was performed at Botsford Hospital and Beaumont Hospitals.