William LydayMD
William Lyday, MD is a Gastroenterology provider in Roswell, GA, as of July 2026.
- NPI1134103195
- Registered2005
- Class of1995
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
William Lyday at a glance
- Provider
- William Lyday
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Roswell, GA
- Medical school
- University of North Carolina at Chapel Hill School of Medicine
- Graduated
- 1995
- NPI registered
- 2005
- NPI
- 1134103195
- 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 William Lyday practice?
William Lyday, MD is based in Roswell, GA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is William Lyday's NPI number?
William Lyday's National Provider Identifier (NPI) is 1134103195, registered in 2005. Specialty on record: Gastroenterology; credential MD.
Where did William Lyday go to medical school?
William Lyday, MD attended University of North Carolina at Chapel Hill School of Medicine, graduating in 1995.
How many Gastroenterology providers in Georgia work at ambulatory surgery centers?
156 Gastroenterology surgeons and proceduralists in Georgia are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, William Lyday among them. The Georgia Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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