Peter J Polewski, MD

Hematology & Oncology

Internal Medicine

Peter J Polewski is a Hematology & Oncology specialist based in Grafton, WI with over 12 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(262) 329-1000Grafton, WI
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Peter J Polewski, MD has been part of the Grafton medical community since 2014 in group practice. He graduated from University of Wisconsin School of Medicine in 2014 and has 12+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

1 of 122 Internal Medicine providers in WISee all Internal Medicine in Grafton12+ years experienceNPI since 2014

Older · 1160dNPPES updated 2023-03-20 · verify NPI on CMS · Verify license at Wisconsin Medical Examining Board

Contact & Location

Practice Location

975 Port Washington Rd, Grafton, WI 53024-9201

CMS Clinical Data

How Does This Doctor Compare?

Opioid Rx

↓ Lower = better

5.94%

Wisconsin avg: 4.3 · US avg: 5.1

Lower than most doctors nationally(+0.8 pts)

5.94% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Generic Rx

↑ Higher = better

71.3%

Wisconsin avg: 82.2 · US avg: 82.8

Lower than most doctors nationally(-11.5 pts)

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

264

Unique beneficiaries

Standard volume

Prescription Recipients

146

Patients prescribed

Prescriptions Written

775

Total claims

Total Medicare drug cost: $1.24M

Percentile rankings compared against 779 reporting peers in Wisconsin.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Arthritis
Lower than avg (-3%)46%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-3%) — less common here

Chronic Kidney Disease
Higher than avg (+10%)40%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+10%) — a focus area for this doctor

Cancer
Higher than avg (+18%)39%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+18%) — a focus area for this doctor

Diabetes
Higher than avg (+1%)35%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+1%) — a focus area for this doctor

Ischemic Heart Disease
Lower than avg (-2%)30%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-2%) — less common here

Mood Disorders
26%

Conditions affecting emotional state, including depression and bipolar disorder

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2014

    University of Wisconsin School of Medicine and Public Health

  2. Board certified · Mar 19, 2023

    Self-reported via NPPES

  3. 12 years in practice

    Established

Internal MedicineHematology & Oncology in GraftonAllopathic & Osteopathic Physicians

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Taxonomy: 207RH0003X

Education & Training

University of Wisconsin School of Medicine (Class of 2014)

Practice Footprint

Mailing address

3301 W Forest Home Ave, Milwaukee, WI 53215-2843

Differs from practice location

Virtual Hematology & Oncology Care With Peter J Polewski

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Peter J Polewski for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Grafton required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Peter J Polewski

NPI records show Dr. Polewski as active with telehealth listed in Grafton, WI. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (262) 329-1000.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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