Katherine Flynn-O'BrienM.D.
Pediatric Surgery·Milwaukee, WI
Katherine Flynn-O'Brien, M.D. is a Pediatric Surgery provider in Milwaukee, WI affiliated with 1 ambulatory surgery center in WI, as of July 2026.
- NPI1225327398
- Registered2011
- Centers1
- StateWI
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.
Katherine Flynn-O'Brien at a glance
- Provider
- Katherine Flynn-O'Brien
- Credential
- M.D.
- Specialty
- Pediatric Surgery
- Location
- Milwaukee, WI
- NPI registered
- 2011
- NPI
- 1225327398
- 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 Katherine Flynn-O'Brien practice?
Katherine Flynn-O'Brien, M.D. is based in Milwaukee, WI and is affiliated with 1 ambulatory surgery center: Froedtert Surgery Center LLC in Milwaukee, WI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Katherine Flynn-O'Brien's NPI number?
Katherine Flynn-O'Brien's National Provider Identifier (NPI) is 1225327398, registered in 2011. Specialty on record: Pediatric Surgery; credential M.D.
How many Pediatric Surgery providers in Wisconsin work at ambulatory surgery centers?
6 Pediatric Surgery surgeons and proceduralists in Wisconsin are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Katherine Flynn-O'Brien among them. The Wisconsin Pediatric Surgery directory lists each one by city with credential, NPI, and center affiliations.
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