Sheridan N. Markatos, MD

Practice locations

Addresses where Sheridan N. Markatos is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Michigan Ave NEGrand Rapids, MI 49503
• 100 Michigan St NE Rm, 280 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 267‑0115
• 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group WestKentwood, MI 49508 (616) 391‑5600

Group practices

Medicare enrollment lists Sheridan N. Markatos as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Michigan →

Other anesthesiologists in Grand Rapids

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

• Kenneth Hayes, MD
• Steven B. Brinn, MD
• Brian McVay, DO
• Jeremy C. Way, MD
• Justin Cueto, DO
• Jonte Jefferson, MD
• Carlos E. Estrada Alamo, MD
• Thomas L. Shaw, MD

All anesthesiologists in Grand Rapids →

Other clinicians in Spectrum Health Primary Care Partners

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

• Meagan Bender
• Charles W. Rieck
• James Griffith, MD
• Brian McVay, DO
• Stephen J. Fitch, MD
• Heather A. Sowinski, MD

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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
3. Medicare Care Compare — official Medicare tool to look up clinicians