Andrew GreggMD PHD
Gastroenterology·Thousand Oaks, CA
Andrew Gregg, MD PHD is a Gastroenterology provider in Thousand Oaks, CA affiliated with 3 ambulatory surgery centers in CA, as of July 2026.
- NPI1942769104
- Registered2019
- Centers3
- StateCA
- Class of2019
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.
Andrew Gregg at a glance
- Provider
- Andrew Gregg
- Credential
- MD PHD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Thousand Oaks, CA
- Medical school graduation
- 2019
- NPI registered
- 2019
- NPI
- 1942769104
- 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 Andrew Gregg practice?
Andrew Gregg, MD PHD is based in Thousand Oaks, CA and is affiliated with 3 ambulatory surgery centers: Uc Regents in West Hills, CA, The Regents Of The University Of California Dba Ucla Dept Of Medicine in North Hollywood, CA, and Airport Endoscopy Center in Los Angeles, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Andrew Gregg's NPI number?
Andrew Gregg's National Provider Identifier (NPI) is 1942769104, registered in 2019. Specialty on record: Gastroenterology; credential MD PHD.
How many Gastroenterology providers in California work at ambulatory surgery centers?
547 Gastroenterology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Andrew Gregg among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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