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Pathology

Paul J. Kowalski, MD

Works at hospitals in Grand Rapids, MI · Michigan

Summary

Dr. Paul J. Kowalski, MD is a pathologist at 100 Michigan NE, Spectrum Butterworth, Grand Rapids, MI 49503. Phone: (616) 267-2660. Accepts Medicare assignment. In 2024, Paul J. Kowalski had 179 Original Medicare patients and 367 services. NPI 1962517797. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Pathologist (Medicare lists Pathology)
  • Address: 100 Michigan NE, Spectrum Butterworth, Grand Rapids, MI 49503 · Directions
  • Phone: (616) 267‑2660
  • Medicare: Accepts Medicare assignment
  • Hospital: Spectrum Health
  • Group practice: Michigan Pathology Specialists PC
  • Medical school: Wayne State University School Of Medicine · graduated 1998 (28 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Paul J. Kowalski, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Paul J. Kowalski accept Medicare assignment?
Yes. Medicare's clinician data says Paul J. Kowalski accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Paul J. Kowalski see?
In 2024, CMS data shows 179 Original Medicare patients and 367 services for Paul J. Kowalski. This counts Original Medicare only and measures volume, not quality.
What is Paul J. Kowalski's NPI number?
1962517797. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Paul J. Kowalski, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients179
Services billed to Medicare367
Different services or procedures13
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)258 services
  2. Pathology examination of tissue using a microscope, moderately high complexity (88307)32 services
  3. Special stained specimen slides to examine tissue, initial procedure (88342)14 services
  4. Pathology examination of tissue using a microscope, moderately low complexity (88304)13 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure69%
  • Arthritis44%
  • Diabetes27%
  • Depression26%
  • Anxiety26%

Hospitals where Paul J. Kowalski works

Medicare's Facility Affiliation Data lists Paul J. Kowalski at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038

Practice locations

Addresses where Paul J. Kowalski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Paul J. Kowalski as a member of this group (CMS data updated October 2, 2026).

  • Michigan Pathology Specialists PC32 clinicians in the group

Specialties

Find other Pathology doctors in Michigan →

Other pathologists in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

All pathologists in Grand Rapids →

Other clinicians in Michigan Pathology Specialists PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962517797
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians