Ernesto GuerraMD
Gastroenterology·San Antonio, TX
Ernesto Guerra, MD is a Gastroenterology provider in San Antonio, TX affiliated with 3 ambulatory surgery centers in TX, as of July 2026.
- NPI1558366435
- Registered2005
- Centers3
- StateTX
- Class of1976
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.
Ernesto Guerra at a glance
- Provider
- Ernesto Guerra
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- San Antonio, TX
- Medical school
- University of California, San Diego School of Medicine
- Graduated
- 1976
- NPI registered
- 2005
- NPI
- 1558366435
- 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 Ernesto Guerra practice?
Ernesto Guerra, MD is based in San Antonio, TX and is affiliated with 3 ambulatory surgery centers: Gab Endoscopy Center LTD in San Antonio, TX, San Antonio Gastroenterology Edoscopy Center Dt in San Antonio, TX, and Gab Endoscopy Center LLC in San Antonio, TX. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Ernesto Guerra's NPI number?
Ernesto Guerra's National Provider Identifier (NPI) is 1558366435, registered in 2005. Specialty on record: Gastroenterology; credential MD.
Where did Ernesto Guerra go to medical school?
Ernesto Guerra, MD attended University of California, San Diego School of Medicine, graduating in 1976.
How many Gastroenterology providers in Texas work at ambulatory surgery centers?
312 Gastroenterology surgeons and proceduralists in Texas are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Ernesto Guerra among them. The Texas Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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