Ann ChenMD
Ann Chen, MD is a Gastroenterology provider in Stanford, CA affiliated with 3 ambulatory surgery centers in CA, as of July 2026.
- NPI1003840307
- Registered2006
- Centers3
- StateCA
- Class of2000
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.
- La Veta Surgical CenterOrange, CA · ENT, Gastroenterology, Ophthalmology, Orthopedics, Pain management, Urology · 30 on panelView center →
- Pavilion Surgery CenterOrange, CA · Gastroenterology, General surgery, Ophthalmology, Pain management, Plastic surgery, Urology · 30 on panelView center →
- United Surgery Center Orange LLCOrange, CA · Gastroenterology · 19 on panelView center →
Education
Education on record as of August 2026.
Ann Chen at a glance
- Provider
- Ann Chen
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Stanford, CA
- Medical school
- Albert Einstein College of Medicine of Yeshiva University
- Graduated
- 2000
- NPI registered
- 2006
- NPI
- 1003840307
- 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 Ann Chen practice?
Ann Chen, MD is based in Stanford, CA and is affiliated with 3 ambulatory surgery centers: La Veta Surgical Center in Orange, CA, Pavilion Surgery Center in Orange, CA, and United Surgery Center Orange LLC in Orange, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Ann Chen's NPI number?
Ann Chen's National Provider Identifier (NPI) is 1003840307, registered in 2006. Specialty on record: Gastroenterology; credential MD.
Where did Ann Chen go to medical school?
Ann Chen, MD attended Albert Einstein College of Medicine of Yeshiva University, graduating in 2000.
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, Ann Chen among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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