Martha HierroM.D.
Gastroenterology·Santa Monica, CA
Martha Hierro, M.D. is a Gastroenterology provider in Santa Monica, CA affiliated with 1 ambulatory surgery center in CA, as of July 2026.
- NPI1770562431
- Registered2006
- Centers1
- StateCA
- Class of1987
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.
Martha Hierro at a glance
- Provider
- Martha Hierro
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Santa Monica, CA
- Medical school
- University of California, Geffen School of Medicine
- Graduated
- 1987
- NPI registered
- 2006
- NPI
- 1770562431
- 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 Martha Hierro practice?
Martha Hierro, M.D. is based in Santa Monica, CA and is affiliated with 1 ambulatory surgery center: Specialty Surgical Center Of Beverly Hills Lp in Beverly Hills, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Martha Hierro's NPI number?
Martha Hierro's National Provider Identifier (NPI) is 1770562431, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
Where did Martha Hierro go to medical school?
Martha Hierro, M.D. attended University of California, Geffen School of Medicine, graduating in 1987.
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, Martha Hierro among them. The California Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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