John DuganMD
John Dugan, MD is a Gastroenterology provider in Houston, TX affiliated with 3 ambulatory surgery centers in TX, as of July 2026.
- NPI1154677755
- Registered2012
- Centers3
- StateTX
- Class of2010
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.
- Medical Center Endoscopy LLCHouston, TX · Gastroenterology · 30 on panelView center →
- Sugar Land Surgery Center LTDSugar Land, TX · Gastroenterology, Ophthalmology · 17 on panelView center →
- Memorial Hermann Surgery Center Kirby LLCHouston, TX · Gastroenterology, Ophthalmology, Pain management · 30 on panelView center →
Education
Education on record as of August 2026.
John Dugan at a glance
- Provider
- John Dugan
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Houston, TX
- Medical school
- University of Texas Medical School at Houston
- Graduated
- 2010
- NPI registered
- 2012
- NPI
- 1154677755
- 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 John Dugan practice?
John Dugan, MD is based in Houston, TX and is affiliated with 3 ambulatory surgery centers: Medical Center Endoscopy LLC in Houston, TX, Sugar Land Surgery Center LTD in Sugar Land, TX, and Memorial Hermann Surgery Center Kirby LLC in Houston, TX. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Dugan's NPI number?
John Dugan's National Provider Identifier (NPI) is 1154677755, registered in 2012. Specialty on record: Gastroenterology; credential MD.
Where did John Dugan go to medical school?
John Dugan, MD attended University of Texas Medical School at Houston, graduating in 2010.
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, John Dugan among them. The Texas Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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