William D. Fales, MD

Medicare activity in 2024

Official CMS public-use data for William D. Fales, 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.

Most frequent services

1. Emergency department visit with high level of medical decision making (99285)28 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)16 services
3. Emergency department visit with moderate level of medical decision making (99284)11 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 blood pressure72%
• High cholesterol70%
• Arthritis49%
• Depression44%
• Anxiety42%
• Chronic kidney disease42%

Hospitals where William D. Fales works

Medicare's Facility Affiliation Data lists William D. Fales 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.

• Borgess Medical CenterKalamazoo, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230117
• Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230017

Practice locations

Addresses where William D. Fales is enrolled with Medicare (CMS data updated October 2, 2026).

• 1521 Gull RdKalamazoo, MI 49048 (269) 226‑7000
• 300 N AveBattle Creek, MI 49017 (269) 245‑8000
• 601 John StKalamazoo, MI 49007 (269) 341‑7654

Group practices

Medicare enrollment lists William D. Fales as a member of these groups (CMS data updated October 2, 2026).

• Southwestern Michigan Emergency Services, PC71 clinicians in the group
• Vituity-Michigan Health Services PC56 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Michigan →

Other emergency medicine doctors in Kalamazoo

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

• Derek Versalle, DO
• Matthew Commet, DO
• Ernest J. Spirito, MD
• Jessica J. McCoy, MD
• Erin Heath
• Jared E. Kilpatrick, MD
• Michael Bernard, DO
• Timothy O. Vanderkooy, MD

All emergency medicine doctors in Kalamazoo →

Other clinicians in Southwestern Michigan Emergency Services, PC

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

• Derek Versalle, DO
• Stephanie L. Van Alsten, MD
• Brian R. Devetter, MD
• Jonathan R. Dadurian, MD
• Christopher Moore, DO
• Alex Vanwoerkom, DO

Clinician information

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