Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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MS. Jennifer J. Mahaffey, PA-C

Individual provider Physician Assistant · NPI 1265789234

MS. Jennifer J. Mahaffey, PA-C is a Physician Assistant in Milwaukee, Wisconsin. Qualified in 2012, 14 years ago. Practices with The Medical College of Wisconsin Inc, a 2,093-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
14
Licensed in
WI
In the registry since
2012
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

9200 W Wisconsin Ave Trauma Surgery
Milwaukee, WI 53226-3522
Phone: (414) 955-1700
Fax: (414) 955-0072
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Physician Assistant (primary) Taxonomy 363AS0400X · Licence 3024 (WI)
Physician Assistant Taxonomy 363A00000X · Licence 3024 (WI)

Record details

NPI number1265789234
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorNo
NPI enumeratedAugust 9, 2012
Last updated in NPPESMay 25, 2022
Certification dateMay 9, 2022

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice The Medical College Of Wisconsin Inc — 2093 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients27
Services billed 42 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The Medical College of Wisconsin Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2093 clinicians in the practice; 12 are shown here.

Other providers in Milwaukee