MARGARET F MAY PA-C
NPI 1629930045
Physician Assistant in Oshkosh, WI

Active since November 25, 2025PECOS EnrolledAccepts Medicare Assignment
600 N WESTHAVEN DR, OSHKOSH, WI 54904(920) 237-5600(920) 237-5601 Get Directions Write a Review

NPPES record last updated: March 16, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 16, 2026, Nov 25, 2025 (2 updates tracked since 2025).

About Margaret F May Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET F MAY PA-C (NPI 1629930045) is an individual physician assistant in Oshkosh, Wisconsin, licensed in Wisconsin (8691) and active in the NPI registry since November 2025. She is enrolled in Medicare PECOS, is affiliated with Thedacare Regional Med Ctr - Neenah, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1629930045
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMARGARET F MAYCredential: PA-C
Location Address600 N WESTHAVEN DROshkosh, WI 54904-6926
Mailing Address3 Neenah CtrNeenah, WI 54956-3070 · (920) 830-5900 · Fax (920) 830-5910
Fax(920) 237-5601
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateNovember 25, 2025
Last NPPES UpdateMarch 16, 20262 updates tracked since enumeration
NPPES CertifiedMarch 16, 2026
NPI 1629930045 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in WI · 8691
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 8691-23 (WI)
600 N WESTHAVEN DR, Oshkosh, WI 54904

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Margaret F May Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193203248
PECOS Enrollment IDI20260129003433
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Thedacare Regional Med Ctr - Neenah

Acute Care Hospitals · Neenah, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520045
Location130 2nd StNeenah, WI 54956 · Winnebago County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54904 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$82.92 typical visit price
range $53.90 – $163.24
Typical copayment $20.73 (range $13.47 – $40.81)
Most-billed visit code 99203
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Social Worker (Clinical)
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Urology
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Nurse Practitioner
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Nurse Practitioner (Family)
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Nurse Practitioner (Psychiatric/Mental Health)
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Pharmacist
600 N WESTHAVEN DR
OSHKOSH, WI 54904
Family Medicine
600 N WESTHAVEN DR
OSHKOSH, WI 54904

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret May's NPI number?

The NPI number for Margaret May is 1629930045. It was assigned to this individual provider in the NPPES registry on November 25, 2025.

Where is Margaret May located?

Margaret May practices at 600 N Westhaven Dr, Oshkosh, WI 54904. The listed phone number is (920) 237-5600.

What is Margaret May's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Margaret May enrolled in Medicare?

Yes. Margaret May is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Margaret May affiliated with any hospitals?

According to CMS data, Margaret May is affiliated with Thedacare Regional Med Ctr - Neenah.

When was this NPI record last updated?

The NPPES record for Margaret May was last updated on March 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.