Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Patrick James Brennan, MD

Individual provider Surgery Physician · NPI 1104876945

Patrick James Brennan, MD is a General Surgery in Neenah, Wisconsin. Graduated from University of Wisconsin School of Medicine in 1997, 29 years ago. Practices with Surgical Associates of Neenah, SC, a 29-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
29
Trained at
University of Wisconsin School of Medicine
Licensed in
WI
In the registry since
2006
Specialties on file
5
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

100 Theda Clark Medical Plz Ste 400
Neenah, WI 54956-2763
Phone: (920) 725-4527
Fax: (920) 725-0991
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 44570 (WI)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 44570 (WI)
Trauma Surgery Physician Taxonomy 2086S0127X · Licence 44570 (WI)
Vascular Surgery Physician Taxonomy 2086S0129X · Licence 44570 (WI)
Colon & Rectal Surgery Physician Taxonomy 208C00000X · Licence 44570 (WI)

Record details

NPI number1104876945
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESMay 8, 2008
Mailing address100 Theda Clark Medical Plz, Suite 400, Neenah, WI 54956-2763

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Also practisesCOLORECTAL SURGERY (PROCTOLOGY), SURGICAL ONCOLOGY, THORACIC SURGERY, VASCULAR SURGERY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Surgical Associates Of Neenah, S.C. — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Neenah