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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGARET ALYCE NIXON MD
NPI 1720728777
Obstetrics & Gynecology in Milwaukee, WI

Active since March 29, 2022PECOS Enrolled
9200 W WISCONSIN AVE, MILWAUKEE, WI 53226(414) 805-4777(414) 805-4774 Get Directions Write a Review

NPPES record last updated: July 30, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Margaret Alyce Nixon Md NPPES

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

MARGARET ALYCE NIXON MD (NPI 1720728777) is an individual obstetrics & gynecology provider in Milwaukee, Wisconsin, licensed in Wisconsin (82446-020) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1720728777
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameMARGARET ALYCE NIXONCredential: MD
Location Address9200 W WISCONSIN AVEMilwaukee, WI 53226-3522
Mailing Address9200 W Wisconsin AveMilwaukee, WI 53226-3522 · (414) 805-4777 · Fax (414) 805-4774
Phone(414) 805-4777
Fax(414) 805-4774
Sole ProprietorNo
Enumeration DateMarch 29, 2022
Last NPPES UpdateJuly 30, 2026
NPPES CertifiedJuly 30, 2026
✔ NPI 1720728777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in WI · 82446-020
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
9200 W WISCONSIN AVE, Milwaukee, WI 53226
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Other Identifiers 1

Medicaid1720728777WI

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Margaret Alyce Nixon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53226 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
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
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.

TRACY BLAIR WANDTKE HERRMANN APNP, CNM
Advanced Practice Midwife
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-4777
DR. ZACHARY SMITH DO
Internal Medicine (Gastroenterology)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 955-6830
DR. COLLEEN ANN CROWE M.D., M.P.H.
Emergency Medicine
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6469
ROBERTO MEJIAS APNP
Nurse Practitioner (Pediatrics)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6600
MRS. ANNE E B LAKATOS APN-BC, APNP, RN
Nurse Practitioner (Adult Health)
9200 W WISCONSIN AVE, DEPT OF INTERNAL MEDICINE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6850
MRS. AMANDA M MANDERS APNP
Nurse Practitioner (Adult Health)
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-6850
KATHLEEN A WATERHOUSE-SKIBICKI CRNA
Nurse Anesthetist, Certified Registered
9200 W WISCONSIN AVE
MILWAUKEE, WI 53226
Milwaukee County (414) 805-5951
ANDREA L BEQUEST PA
Physician Assistant (Medical)
9200 W WISCONSIN AVE, INTERNAL MEDICINE
MILWAUKEE, WI 53226
Milwaukee County (414) 955-0350

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 Nixon's NPI number?

The NPI number for Margaret Nixon is 1720728777. It was assigned to this individual provider in the NPPES registry on March 29, 2022.

Where is Margaret Nixon located?

Margaret Nixon practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 805-4777.

What is Margaret Nixon's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Margaret Nixon enrolled in Medicare?

Yes. Margaret Nixon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Margaret Nixon was last updated on July 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.