David LeffDO
Gastroenterology·Mesa, AZ
David Leff, DO is a Gastroenterology provider in Mesa, AZ affiliated with 2 ambulatory surgery centers in AZ, as of July 2026.
- NPI1619956505
- Registered2006
- Centers2
- StateAZ
- Class of1991
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.
David Leff at a glance
- Provider
- David Leff
- Credential
- DO
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Mesa, AZ
- Medical school graduation
- 1991
- NPI registered
- 2006
- NPI
- 1619956505
- 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 David Leff practice?
David Leff, DO is based in Mesa, AZ and is affiliated with 2 ambulatory surgery centers: East Valley Endoscopy in Mesa, AZ and Central Arizona Endoscopy in Mesa, AZ. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is David Leff's NPI number?
David Leff's National Provider Identifier (NPI) is 1619956505, registered in 2006. Specialty on record: Gastroenterology; credential DO.
How many Gastroenterology providers in Arizona work at ambulatory surgery centers?
130 Gastroenterology surgeons and proceduralists in Arizona are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, David Leff among them. The Arizona Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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