Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Gregory C. Mahr, MD

Individual provider Psychiatry Physician · NPI 1841350717

Gregory C. Mahr, MD is a Psychiatry in Ferndale, Michigan. Graduated from Wayne State University School of Medicine in 1983, 43 years ago. Practices with Henry Ford Health System, a 2,540-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
43
Trained at
Wayne State University School of Medicine
Licensed in
MI
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Kingswood Hospital 10300 West Eight Mile Rd
Ferndale, MI 48220
Phone: (248) 691-4865
Fax: (248) 691-4877
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 4301047989 (MI)

Record details

NPI number1841350717
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 11, 2006
Last updated in NPPESJuly 31, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Henry Ford Health System — 2540 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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