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27 years of experience
Video profile
Accepting new patients
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Gregory Mahr:

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  1. Qualifications
  2. What's important to you

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Patient Reviews

  • Currently 4 of 4 stars
Patient comments (1)

The overall average patient rating of Dr. Gregory Mahr is Excellent. Dr. Mahr has been reviewed by 2 patients who have provided 1 comments. The rating is 4 out of 4 stars.

Patient Ratings
Ease of Appointment 3.5
  • Currently 3.5 of 4 stars
Promptness 3.5
  • Currently 3.5 of 4 stars
Courteous Staff 4.0
  • Currently 4 of 4 stars
Accurate Diagnosis 4.0
  • Currently 4 of 4 stars
Bedside Manner 4.0
  • Currently 4 of 4 stars
Spends Time with Me 4.0
  • Currently 4 of 4 stars
Follows Up After Visit 4.0
  • Currently 4 of 4 stars

Specialties & Research

Dr. Gregory Mahr, MD is board certified in Psychiatry.

Education & Awards

Dr. Mahr graduated from Wayne State University, Detroit.


Dr. Mahr has 4 hospital affiliations:

  • Oakwood Hospital and Medical Center 
  • Henry Ford Hospital 


  • Polish

> > > > Dr. Gregory Mahr, MD

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Additional Information
Dr. Gregory Conrad Mahr MD is a male Psychiatrist, has 27 years of experience and practices in Psychiatry.
Where does Dr. Gregory C. Mahr practice?
Dr. Gregory Mahr has 4 office locations.
Dr. Gregory Mahr practices Psychiatry near Detroit, MI.
Additional practice locations include: Dearborn, MI and Ferndale, MI.
See Detroit Psychiatrists.