John RyanM.D.
Gastroenterology·Las Vegas, NV
John Ryan, M.D. is a Gastroenterology provider in Las Vegas, NV affiliated with 4 ambulatory surgery centers in NV, as of July 2026.
- NPI1073695698
- Registered2006
- Centers4
- StateNV
- Class of1995
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.
- Comprehensive Digestive Surgicenter LLC Dba Comprehensive Digestive Surgical CenterLas Vegas, NV · Gastroenterology · 22 on panelView center →
- Seven Hills Surgery Center LLCHenderson, NV · Cardiology, ENT, Gastroenterology, Ophthalmology, Pain management · 1 on panelView center →
- Parkway Surgery CenterHenderson, NV · Gastroenterology, Orthopedics, Pain management · 13 on panelView center →
- Parkway Surgery Center Dba Parkway Surgery Center At Horizon RidgeHenderson, NV · Gastroenterology, Orthopedics, Pain management · 13 on panelView center →
Education
Education on record as of August 2026.
John Ryan at a glance
- Provider
- John Ryan
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Las Vegas, NV
- Medical school
- University of South Carolina School of Medicine
- Graduated
- 1995
- NPI registered
- 2006
- NPI
- 1073695698
- 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 Ryan practice?
John Ryan, M.D. is based in Las Vegas, NV and is affiliated with 4 ambulatory surgery centers: Comprehensive Digestive Surgicenter LLC Dba Comprehensive Digestive Surgical Center in Las Vegas, NV, Seven Hills Surgery Center LLC in Henderson, NV, Parkway Surgery Center in Henderson, NV, and Parkway Surgery Center Dba Parkway Surgery Center At Horizon Ridge in Henderson, NV. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is John Ryan's NPI number?
John Ryan's National Provider Identifier (NPI) is 1073695698, registered in 2006. Specialty on record: Gastroenterology; credential M.D.
Where did John Ryan go to medical school?
John Ryan, M.D. attended University of South Carolina School of Medicine, graduating in 1995.
How many Gastroenterology providers in Nevada work at ambulatory surgery centers?
43 Gastroenterology surgeons and proceduralists in Nevada are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, John Ryan among them. The Nevada Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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