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

Gregory Hugh Hessler, MD

Individual provider Family Medicine Physician · NPI 1326156928

Gregory Hugh Hessler, MD is a Family Practice in Mackinac Island, Michigan. Graduated from Wayne State University School of Medicine in 1984, 42 years ago. Practices with Mackinac Straits Health System Inc, a 22-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
42
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 Address checks out

7474 Market St
Mackinac Island, MI 49757
Phone: (231) 534-7200
Fax: (231) 534-7460
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 4301048874 (MI)

Record details

NPI number1326156928
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESJune 9, 2026
Certification dateJune 9, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Mackinac Straits Health System Inc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount