Hassaan ZiaMD
Gastroenterology·Milwaukee, WI
Hassaan Zia, MD is a Gastroenterology provider in Milwaukee, WI affiliated with 2 ambulatory surgery centers in WI, as of July 2026.
- NPI1669887519
- Registered2014
- Centers2
- StateWI
- Class of2012
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.
Hassaan Zia at a glance
- Provider
- Hassaan Zia
- Credential
- MD
- Specialty
- Gastroenterology
- Procedures
- Gastroenterology CPT codes
- Location
- Milwaukee, WI
- Medical school graduation
- 2012
- NPI registered
- 2014
- NPI
- 1669887519
- 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 Hassaan Zia practice?
Hassaan Zia, MD is based in Milwaukee, WI and is affiliated with 2 ambulatory surgery centers: Froedtert Surgery Center LLC in Milwaukee, WI and Mayfair Digestive Health Center LLC in Wauwatosa, WI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Hassaan Zia's NPI number?
Hassaan Zia's National Provider Identifier (NPI) is 1669887519, registered in 2014. Specialty on record: Gastroenterology; credential MD.
How many Gastroenterology providers in Wisconsin work at ambulatory surgery centers?
103 Gastroenterology surgeons and proceduralists in Wisconsin are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Hassaan Zia among them. The Wisconsin Gastroenterology directory lists each one by city with credential, NPI, and center affiliations.
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