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

Individual provider Gastroenterology Physician · NPI 1982693677

Michael C Duffy, MD is a Gastroenterology in Troy, Michigan. Graduated from Louisiana State University School of Medicine in New Orleans in 1974, 52 years ago. Practices with Gastrointestinal Specialists PC, a 16-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
52
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
MI
In the registry since
2005
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

264 W Maple Rd #200
Troy, MI 48084-5435
Phone: (248) 273-9930
Fax: (248) 273-9931
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 052312 (MI)

Record details

NPI number1982693677
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 17, 2005
Last updated in NPPESJuly 13, 2026
Mailing address264 W Maple Rd, 200, Troy, MI 48084-5435

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 1974 (52 years in practice)
Group practice Gastrointestinal Specialists Pc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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