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DR. BROCK E. POLNASZEK
NPI 1285163451
Obstetrics & Gynecology - Maternal & Fetal Medicine in Milwaukee, WI

Active since June 09, 2017PECOS EnrolledAccepts Medicare Assignment
9200 W WISCONSIN AVE, MILWAUKEE, WI 53226(401) 805-6624(414) 805-9000 Get Directions Write a Review

NPPES record last updated: April 29, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Oct 2, 2024, Aug 2, 2024, May 15, 2023 and 1 more (4 updates tracked since 2017).

About Dr. Brock E. Polnaszek NPPES

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

DR. BROCK E. POLNASZEK (NPI 1285163451) is an individual maternal & fetal medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (84385-20) and active in the NPI registry since June 2017. He is enrolled in Medicare PECOS, is affiliated with Froedtert Memorial Lutheran Hospital, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1285163451
Entity TypeIndividualMale
Primary Taxonomy207VM0101X
Provider Legal NameDR. BROCK E. POLNASZEK
Location Address9200 W WISCONSIN AVEMilwaukee, WI 53226-3522
Mailing Address9200 W Wisconsin AveMilwaukee, WI 53226-3522 · (401) 805-6624 · Fax (414) 805-9000
Phone(401) 805-6624
Fax(414) 805-9000
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateJune 9, 2017
Last NPPES UpdateApril 29, 20254 updates tracked since enumeration
NPPES CertifiedApril 29, 2025
✔ NPI 1285163451 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
Licenses✔ Licensed in WI · 84385-20✔ Licensed in RI · MD17459
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 84385-20 (WI)
9200 W WISCONSIN AVE, Milwaukee, WI 53226
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Other Identifiers 1

Medicaid1285163451WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare) and more.Insurance ›

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

Dr. Brock E. Polnaszek 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 ID6800168675
PECOS Enrollment IDI20241014001225
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.

Froedtert Memorial Lutheran Hospital

Acute Care Hospitals · Milwaukee, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520177
Location9200 W Wisconsin AveMilwaukee, WI 53226 · Milwaukee County
Emergency services Birthing friendly

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 Brock Polnaszek's NPI number?

The NPI number for Brock Polnaszek is 1285163451. It was assigned to this individual provider in the NPPES registry on June 9, 2017.

Where is Brock Polnaszek located?

Brock Polnaszek practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (401) 805-6624.

What is Brock Polnaszek's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Brock Polnaszek enrolled in Medicare?

Yes. Brock Polnaszek 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.

What insurance does Brock Polnaszek accept?

Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, CareSource (Common Ground Healthcare), HealthPartners and Network Health list Brock Polnaszek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Brock Polnaszek affiliated with any hospitals?

According to CMS data, Brock Polnaszek is affiliated with Froedtert Memorial Lutheran Hospital.

When was this NPI record last updated?

The NPPES record for Brock Polnaszek was last updated on April 29, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.