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Interventional Cardiology

Gillian M. Belnavis, MD

Works at hospitals in Marion, OH · Columbus, OH · Upper Sandusky, OH · Ohio

Summary

Dr. Gillian M. Belnavis, MD is an interventional cardiologist at 278 Barks Rd W, Marion, OH 43302. Phone: (740) 383-7080. Accepts Medicare assignment. NPI 1003347170. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Gillian M. Belnavis, 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 Gillian M. Belnavis accept Medicare assignment?
Yes. Medicare's clinician data says Gillian M. Belnavis 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.
What is Gillian M. Belnavis's NPI number?
1003347170. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Gillian M. Belnavis works

Medicare's Facility Affiliation Data lists Gillian M. Belnavis 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.

  • Marion General HospitalMarion, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360011
  • Riverside Methodist HospitalColumbus, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360006
  • Wyandot Memorial HospitalUpper Sandusky, OH · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 361329

Practice locations

Addresses where Gillian M. Belnavis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gillian M. Belnavis as a member of this group (CMS data updated October 2, 2026).

  • Marion Area Physicians LLC181 clinicians in the group

Specialties

Find other Interventional Cardiology doctors in Ohio →

Other interventional cardiologists in Marion

Clinicians with the same Medicare primary specialty in Marion, OH — not a recommendation.

All interventional cardiologists in Marion →

Other clinicians in Marion Area Physicians LLC

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

Clinician information

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1003347170
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians