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

Mr. Matthew S. Bay, PA

Individual provider Physician Assistant · NPI 1033359401

Mr. Matthew S. Bay, PA is a Physician Assistant in Oshkosh, Wisconsin. Graduated from University of Nebraska College of Medicine in 2009, 17 years ago. Practices with Fox Valley Surgical Associates Ltd, a 35-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
17
Trained at
University of Nebraska College of Medicine
Licensed in
WI
In the registry since
2009
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

See every abbreviation used in this directory →

Practice location Address checks out

855 N Westhaven Dr
Oshkosh, WI 54904-7668
Phone: (920) 303-8700
Fax: (920) 456-5901
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2000 E Milestone Dr, Appleton, WI 54913-6701 — (920) 731-8131

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 2387 (WI)
Surgical Physician Assistant Taxonomy 363AS0400X · Licence 2387-23 (WI)

Record details

NPI number1033359401
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedFebruary 25, 2009
Last updated in NPPESAugust 4, 2026
Certification dateAugust 4, 2026

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolUNIVERSITY OF NEBRASKA COLLEGE OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Fox Valley Surgical Associates Ltd — 35 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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