Michael DuffyMD
Gastroenterology·Troy, MI
Michael Duffy, MD is a Gastroenterology provider in Troy, MI affiliated with 1 ambulatory surgery center in MI, as of July 2026.
- NPI1982693677
- Registered2005
- Centers1
- StateMI
- Class of1974
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Education
Education on record as of August 2026.
Michael Duffy at a glance
- Provider
- Michael Duffy
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Troy, MI
- Medical school
- Louisiana State University School of Medicine in New Orleans
- Graduated
- 1974
- NPI registered
- 2005
- NPI
- 1982693677
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Michael Duffy practice?
Michael Duffy, MD is based in Troy, MI and is affiliated with 1 ambulatory surgery center: Southfield Endoscopy ASC LLC in Troy, MI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Michael Duffy's NPI number?
Michael Duffy's National Provider Identifier (NPI) is 1982693677, registered in 2005. Specialty on record: Gastroenterology; credential MD.
Where did Michael Duffy go to medical school?
Michael Duffy, MD attended Louisiana State University School of Medicine in New Orleans, graduating in 1974.
How many Gastroenterology providers in Michigan work at ambulatory surgery centers?
93 Gastroenterology surgeons and proceduralists in Michigan are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Michael Duffy among them. The Michigan Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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