A doctor focused on you

Dr. O'Brien has partnered with SignatureMD to ensure that you receive the finest in personalized care. As a program member, you’ll experience a new approach, where Dr. O'Brien will dedicate the time you need to help you live your healthiest life.

Mark O’Brien, MD

Internal Medicine

Education

  • University of Michigan
  • Wayne State University School of Medicine
  • Northwestern University School of Medicine

Mark O’Brien, MD graduated from the University of Michigan with a BS in Zoology. He continued on and received his Doctor of Medicine degree from Wayne State University School of Medicine. Dr. O’Brien completed his residency and fellowship, Nephrology and Hypertension at the Northwestern University School of Medicine.

Dr. O’Brien is board certified in both Internal Medicine and Nephrology. He is a member of the American College of Physicians and the AMA.

By limiting his panel to 500 members, Dr. O’Brien will be able to partner with you to optimize your well-being.

Dr. Sample has been honored to receive the Washington Consumers Checkbook Top Rated Primary Care Physician Award on many occasions.

Practice information

Mark O’Brien, MD

Doctor of Internal Medicine
4070 Lake Dr. SE, Suite 201
Grand Rapids, MI 49546

Monday - Tuesday

8:00 AM - 5:00 PM

Wednesday

9:00 AM - 12:00 PM

Thursday

8:00 AM - 5:00 PM

Friday

8:00 AM - 4:00 PM

Saturday - Sunday

Closed

Monday - Tuesday

8:00 AM - 5:00 PM

Wednesday

9:00 AM - 12:00 PM

Thursday

8:00 AM - 5:00 PM

Friday

8:00 AM - 4:00 PM

Saturday - Sunday

Closed

Accepted insurance

Here is a list of major insurances accepted at Dr. O'Brien’s practice. To verify in-network participation, please contact your insurance member services line, or the office directly.

  • Aetna
  • Anthem
  • Blue Cross and Blue Shield
  • CIGNA
  • Coventry Health Care
  • Humana
  • Medicare
  • Tricare
  • United Healthcare

Hear from Dr. O'Brien’s patients