Doctor profile · Federal record

Dr. Peter Polewski, MD

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Grafton, WI

  • NPI 1659784940
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
975 Port Washington RD
Grafton, WI 530249201
(262) 329-1000
Mailing address
3301 W Forest Home Ave
Milwaukee, WI 532152843

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
March 20, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Wisconsin #65955
Medicaid
WI #100062244

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659784940. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
623
Distinct HCPCS
4
Medicare allowed
$66,993
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 249 66 $133
99214 Established patient office or other outpatient visit, 30-39 minutes 219 156 $92
99442 Telephone medical discussion with physician, 11-20 minutes 88 73 $62
99204 New patient office or other outpatient visit, 45-59 minutes 67 67 $124

In context: peer comparison

Among 1 peers in Grafton Hematology & Oncology Physician, average services per provider: 155. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
521
Patients
109
Total drug cost
$583,365
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 89 19 $65,647
Hydroxyurea Generic 69 18 $2,839
Anastrozole Generic 51 12 $1,433
Prochlorperazine Maleate Generic 39 19 $528
Dexamethasone Generic 35 15 $427
Duloxetine Hcl Generic 34 15 $449
Prednisone Generic 30 0 $139
Acyclovir Generic 28 11 $545
Loperamide (Loperamide Hcl) Brand 25 0 $366
Revlimid (Lenalidomide) Brand 25 0 $492,015

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Peter Polewski's medical specialty?
Dr. Peter Polewski practices Hematology & Oncology Physician in Grafton, WI.
Where does Dr. Peter Polewski practice?
Dr. Peter Polewski practices at 975 Port Washington RD, Grafton, WI 530249201. Office phone: 2623291000.
What is Dr. Peter Polewski's NPI?
Dr. Peter Polewski's National Provider Identifier (NPI) is 1659784940, issued by NPPES.
Does Dr. Peter Polewski accept Medicare assignment?
Yes. Dr. Peter Polewski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Polewski commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.