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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).

Patient Reviews

Patient comments (1)

The overall average patient rating of Dr. Harlan Mast is Average. Dr. Mast has been reviewed by 3 patients who have provided 1 comments. The rating is 3 out of 5 stars.

Patient Ratings
Ease of Appointment 3.0
Promptness 5.0
Courteous Staff 3.0
Accurate Diagnosis 3.0
Bedside Manner 3.0
Spends Time with Me 3.0
Follows Up After Visit 3.0

Specialties & Research

Dr. Harlan Mast, MD is board certified in Internal Medicine.

Education & Awards

Dr. Mast graduated from Eastern Virginia Medical School, Norfolk.


Dr. Mast has 7 hospital affiliations:

  • Saint Joseph Mercy Saline Hospital 
  • ProMedica North Region-Bixby Campus 

> > > > Dr. Harlan Mast, MD

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Additional Information
Dr. Harlan Mast MD is a male Internist, has 27 years of experience and practices in Internal Medicine.
Where does Dr. Harlan Mast practice?
Dr. Harlan Mast has 5 office locations.
Dr. Harlan Mast practices Internal Medicine near Pontiac, MI.
Additional practice locations include: Port Huron, MI and Livonia, MI.
See Pontiac Internists.