Gregory SimpsonM.D.
Dermatology·Fresno, CA
Gregory Simpson, M.D. is a Dermatology provider in Fresno, CA, as of July 2026.
- NPI1740488238
- Registered2007
- Class of2006
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Gregory Simpson at a glance
- Provider
- Gregory Simpson
- Credential
- M.D.
- Specialty
- Dermatology
- Location
- Fresno, CA
- Medical school
- University of Tennessee, HSC, College of Medicine
- Graduated
- 2006
- NPI registered
- 2007
- NPI
- 1740488238
- 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 Gregory Simpson practice?
Gregory Simpson, M.D. is based in Fresno, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Gregory Simpson's NPI number?
Gregory Simpson's National Provider Identifier (NPI) is 1740488238, registered in 2007. Specialty on record: Dermatology; credential M.D.
Where did Gregory Simpson go to medical school?
Gregory Simpson, M.D. attended University of Tennessee, HSC, College of Medicine, graduating in 2006.
How many Dermatology providers in California work at ambulatory surgery centers?
426 Dermatology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Gregory Simpson among them. The California Dermatology directory lists each one by city with credential, NPI, and center affiliations.
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