Dr. Michael R. Brennan, DO | Royal Oak, MI | Endocrinologist

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Dr. Michael Brennan is an endocrinologist specializing in diabetes and metabolism, with additional expertise in internal medicine, adolescent medicine, and pediatrics. He earned his medical degree from Michigan State University College of Osteopathic Medicine and brings 20 years of experience to his practice. Dr. Brennan speaks English and focuses on providing comprehensive care across multiple age groups.

Dr. Brennan practices at several Corewell Health locations throughout Michigan, including Royal Oak, Troy, and Farmington Hills, as well as Surgeons Choice Medical Center in Southfield. He specializes in treating Type 2 diabetes and hyperglycemia in both adults and children. His expertise includes performing blood tests and A1c monitoring to help patients manage their diabetes effectively. Patients rate Dr. Brennan 4.1 out of 5 stars for his care.

Overview based on verified provider data

4.1

55 Ratings
20 years of experience
speaks English
Michigan State University College Of Osteopathic Medicine
6 written reviews
4 specialties
16 areas of expertise
4 board certifications
5 hospital affiliations
4 office locations
Male

55 ratings & reviews

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Showing 1 to 6 of 6 reviews

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Dr. Brennan is well-spoken and thorough. I recently just had a biopsy done and he made me feel comforted throughout it. He explained the procedure before, during and after. He told me everything he was about to do before he did it. So I knew each moment what was happening. He did not leave me in the unknown the whole time. I appreciated a lot him during that time. The staff there are great as well!

December 27th, 2018

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I would like to thank Lauren, NP, she is professional and very knowledgeable. She takes the time to answer questions while always being honest.

April 25th, 2018

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Dr Michael Brennan is an great Dr, he is kind,he is excellent in what he do.at least for me, Dr Michael Brennan should be awarded best Endocrine Dr of the year.

July 9th, 2016

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Dr Michael Brennan is a excellent Dr .He is a very concern persons, he is extremely patient,thoughtful and kind. I would like too say to him personally keep up the good work,you are going to go far and be more successful then you already are.I really like my Endocrine Dr he is the greatest.

November 29th, 2015

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I would highly recommend ....actually I have recommended

October 28th, 2015

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Dr Michael Roger Brennan is a extremely very good,and very concern about my health and care,He gets a 100 percent from me

August 27th, 2015

Corewell Health William Beaumont University Hospital

3601 W 13 Mile RdRoyal Oak, MI 48073

Tel: (248) 898-5000

Surgeons Choice Medical Center

22401 Foster Winter DrSouthfield, MI 48075

Tel: (248) 423-5100

Beaumont Hospital Troy

44201 Dequindre RdTroy, MI 48085

Tel: (248) 964-5100

Corewell Health Farmington Hills Hospital

28050 Grand River AveFarmington Hills, MI 48336

Tel: (248) 471-8000


Dr. Michael Roger Brennan, DO	Dr. Vincent John Palusci, MD	Dr. Ramandeep Mand, MD	Dr. David Moore Devellis, MD
Endocrinology, Diabetes & Metabolism	Pediatrics	Interventional Cardiology	Psychiatry
			Accepts New Patients
4.1 (55 Ratings)	0 (0 Ratings)	0 (0 Ratings)	0 (0 Ratings)
20 Years of Experience	42 Years of Experience	9 Years of Experience	28 Years of Experience
No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English
Royal Oak , MI	New York , NY	Mount Clemens , MI	Plymouth , MI
Med School: Michigan State University College Of Osteopathic Medicine	Med School: Rutgers New Jersey Medical School	Med School: Ross University School Of Medicine	Med School: STATE UNIVERSITY OF NEW YORK UPSTATE MEDICAL UNIVERSITY
Current Profile	View Profile	View Profile	View Profile

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Acromegaly
Addison Disease
Adolescent Medicine
Cushing Disease
Diabetes
Diabetes (Types I & II)
Diabetes Mellitus, Type 1
Fatigue
Gland Issues
Hormones
Hyperthyroidism
Hypopituitarism
Hypothyroidism
Internal Medicine
Pediatrics
Weight Loss

MEDICAL LICENSE

Doctor Of Osteopathy, Michigan, 2026, Active

EDUCATION & TRAINING

Medical School

Michigan State University College Of Osteopathic MedicineGraduated in 2006

Dr. Iram Mirza, MD
Emergency Medicine
30 Years Exp | Chesterfield, MI
(0)
Dr. Todd Alan Lockwitz, MD
Adolescent Medicine
38 Years Exp | Pontiac, MI
(16)
Dr. Amgad Amir Bissada, MD
Hospital Medicine
43 Years Exp | Livonia, MI
(0)
Dr. Sophia Kumar Arunselvan, MD
Nephrology
26 Years Exp | LIVONIA, MI
(1)
Dr. Richard William Cattaneo, MD
Radiation Oncology
16 Years Exp | Ypsilanti, MI
(2)
Dr. Elaine C Kountanis, MD
Pathology
42 Years Exp | Kalamazoo, MI
(2)
Dr. Abdullah Hanif Malik, MD
Pediatrics
10 Years Exp | Merrillville, IN
(0)
Dr. Shirley Louis, MD
Neonatology
12 Years Exp | Detroit, MI
(0)
Dr. Sri Krishna Prasad Narayana, MD
Neonatology
26 Years Exp | Detroit, MI
(0)
Dr. Amer M Alata, MD
Pediatrics
19 Years Exp | BEVERLY HILLS, MI
(1)

Is Dr. Michael Brennan accepting new patients?: Dr. Michael Brennan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Michael Brennan speak?: Dr. Michael Brennan speaks English.
Does Dr. Michael Brennan accept my insurance?: You can see the insurance plans that Dr. Michael Brennan accepts on their Vitals profile.
How can I make an appointment with Dr. Michael Brennan?: You can find contact information for Dr. Michael Brennan here on Vitals.
Does Dr. Michael Brennan accept virtual/telehealth appointments?: Dr. Michael Brennan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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