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Obstetrics/Gynecology

Thomas A. Fasbender, DO

Works at hospitals in Zeeland, MI · Grand Rapids, MI · Michigan

Summary

Dr. Thomas A. Fasbender, DO is an OB-GYN at 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group West, Kentwood, MI 49508. Phone: (616) 391-5600. Accepts Medicare assignment. In 2024, Thomas A. Fasbender had 23 Original Medicare patients and 44 services. NPI 1265465496. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group West, Kentwood, MI 49508 · Directions (2 more locations)
  • Phone: (616) 391‑5600
  • Medicare: Accepts Medicare assignment
  • Hospitals: Corewell Health Zeeland Hospital, Spectrum Health
  • Group practice: Spectrum Health Primary Care Partners
  • Medical school: Michigan State University College Of Human Medicine · graduated 1995 (31 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Thomas A. Fasbender, 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 Thomas A. Fasbender accept Medicare assignment?
Yes. Medicare's clinician data says Thomas A. Fasbender 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 Thomas A. Fasbender see?
In 2024, CMS data shows 23 Original Medicare patients and 44 services for Thomas A. Fasbender. This counts Original Medicare only and measures volume, not quality.
What is Thomas A. Fasbender's NPI number?
1265465496. 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 Thomas A. Fasbender, 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 patients23
Services billed to Medicare44
Different services or procedures18
Participating Medicare providerYes
Average age of these patients63

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 blood pressure57%
  • High cholesterol57%

Hospitals where Thomas A. Fasbender works

Medicare's Facility Affiliation Data lists Thomas A. Fasbender 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.

  • Corewell Health Zeeland HospitalZeeland, MI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 230003
  • Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038

Practice locations

Addresses where Thomas A. Fasbender is enrolled with Medicare (CMS data updated October 2, 2026).

  • 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group WestKentwood, MI 49508 (616) 391‑5600
  • 588 E Lakewood Blvd FlHolland, MI 49424
  • 8333 Felch StZeeland, MI 49464

Group practices

Medicare enrollment lists Thomas A. Fasbender as a member of this group (CMS data updated October 2, 2026).

  • Spectrum Health Primary Care Partners2,294 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Michigan →

Other OB-GYNs in Kentwood

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

All OB-GYNs in Kentwood →

Other clinicians in Spectrum Health Primary Care Partners

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

Clinician information

CredentialDO
Medical schoolMichigan State University College Of Human Medicine
Graduation year1995 (31 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265465496
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