Thomas LamM.D.
Thomas Lam, M.D. is a Gastroenterology provider in Alhambra, CA affiliated with 3 ambulatory surgery centers in CA, as of July 2026.
- NPI1437185295
- Registered2006
- Centers3
- StateCA
- Class of1981
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.
- North Anaheim Surgery Center LLC Dba United Pacific Surgery CenterAnaheim, CA · Gastroenterology, General surgery, Ophthalmology, Orthopedics, Pain management, Plastic surgery · 9 on panelView center →
- Gastroenterology Diagnostic Center Medical GroupMonterey Park, CA · Gastroenterology · 8 on panelView center →
- Advanced Diagnostic And Surgical Center INCAlhambra, CA · Gastroenterology, Ophthalmology · 5 on panelView center →
Thomas Lam at a glance
- Provider
- Thomas Lam
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Alhambra, CA
- Medical school graduation
- 1981
- NPI registered
- 2006
- NPI
- 1437185295
- 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 Thomas Lam practice?
Thomas Lam, M.D. is based in Alhambra, CA and is affiliated with 3 ambulatory surgery centers: North Anaheim Surgery Center LLC Dba United Pacific Surgery Center in Anaheim, CA, Gastroenterology Diagnostic Center Medical Group in Monterey Park, CA, and Advanced Diagnostic And Surgical Center INC in Alhambra, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Thomas Lam's NPI number?
Thomas Lam's National Provider Identifier (NPI) is 1437185295, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
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, Thomas Lam among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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