Steven ZiererM.D.
Gastroenterology·Mesa, AZ
Steven Zierer, M.D. is a Gastroenterology provider in Mesa, AZ affiliated with 1 ambulatory surgery center in AZ, as of July 2026.
- NPI1366437337
- Registered2005
- Centers1
- StateAZ
- Class of1989
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.
Steven Zierer at a glance
- Provider
- Steven Zierer
- Credential
- M.D.
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Mesa, AZ
- Medical school
- Indiana University School of Medicine
- Graduated
- 1989
- NPI registered
- 2005
- NPI
- 1366437337
- 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 Steven Zierer practice?
Steven Zierer, M.D. is based in Mesa, AZ and is affiliated with 1 ambulatory surgery center: East Valley Endoscopy in Mesa, AZ. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Steven Zierer's NPI number?
Steven Zierer's National Provider Identifier (NPI) is 1366437337, registered in 2005. Specialty on record: Gastroenterology; credential M.D.
Where did Steven Zierer go to medical school?
Steven Zierer, M.D. attended Indiana University School of Medicine, graduating in 1989.
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, Steven Zierer among them. The Arizona Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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