Patrick BrennanM.D.
Patrick Brennan, M.D. is a General Surgery provider in Neenah, WI, as of July 2026.
- NPI1104876945
- Registered2006
- Class of1997
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Patrick Brennan at a glance
- Provider
- Patrick Brennan
- Credential
- M.D.
- Specialty
- General Surgery
- Procedures
- General Surgery CPT codes
- Location
- Neenah, WI
- Medical school
- University of Wisconsin School of Medicine
- Graduated
- 1997
- NPI registered
- 2006
- NPI
- 1104876945
- 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 Patrick Brennan practice?
Patrick Brennan, M.D. is based in Neenah, WI. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Patrick Brennan's NPI number?
Patrick Brennan's National Provider Identifier (NPI) is 1104876945, registered in 2006. Specialty on record: General Surgery; credential M.D.
Where did Patrick Brennan go to medical school?
Patrick Brennan, M.D. attended University of Wisconsin School of Medicine, graduating in 1997.
How many General Surgery providers in Wisconsin work at ambulatory surgery centers?
98 General Surgery surgeons and proceduralists in Wisconsin are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Patrick Brennan among them. The Wisconsin General Surgery directory lists each one by city with credential, NPI, and center affiliations.
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