Lisa HertzMD
Gastroenterology·Los Alamitos, CA
Lisa Hertz, MD is a Gastroenterology provider in Los Alamitos, CA affiliated with 2 ambulatory surgery centers in CA, as of July 2026.
- NPI1639237720
- Registered2006
- Centers2
- StateCA
- Class of1984
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.
Lisa Hertz at a glance
- Provider
- Lisa Hertz
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Los Alamitos, CA
- Medical school
- Harvard Medical School
- Graduated
- 1984
- NPI registered
- 2006
- NPI
- 1639237720
- 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 Lisa Hertz practice?
Lisa Hertz, MD is based in Los Alamitos, CA and is affiliated with 2 ambulatory surgery centers: Glbesc LLC Dba Memorialcare Outpatient Surgical Center Long Beach in Long Beach, CA and Reagan St Surgery Center in Los Alamitos, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Lisa Hertz's NPI number?
Lisa Hertz's National Provider Identifier (NPI) is 1639237720, registered in 2006. Specialty on record: Gastroenterology; credential MD.
Where did Lisa Hertz go to medical school?
Lisa Hertz, MD attended Harvard Medical School, graduating in 1984.
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, Lisa Hertz among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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