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Internal Medicine

Marielle R. Siebert, DO

Works at hospitals in Columbus, OH · Ohio

Summary

Dr. Marielle R. Siebert, DO is an internal medicine doctor at 5300 N Meadows Dr, Grove City, OH 43123. Phone: (614) 663-5301. Accepts Medicare assignment. NPI 1710566799. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5300 N Meadows Dr, Grove City, OH 43123 · Directions (1 more location)
  • Phone: (614) 663‑5301
  • Medicare: Accepts Medicare assignment
  • Hospital: Mount Carmel East & West
  • Group practice: Mount Carmel Health System
  • Medical school: Des Moines University Of Osteopathic Medicine And Health Sciences · graduated 2021 (5 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Marielle R. Siebert, 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 Marielle R. Siebert accept Medicare assignment?
Yes. Medicare's clinician data says Marielle R. Siebert 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 Marielle R. Siebert's NPI number?
1710566799. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Marielle R. Siebert works

Medicare's Facility Affiliation Data lists Marielle R. Siebert 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.

Practice locations

Addresses where Marielle R. Siebert is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marielle R. Siebert as a member of this group (CMS data updated October 2, 2026).

  • Mount Carmel Health System84 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Grove City

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

All internal medicine doctors in Grove City →

Other clinicians in Mount Carmel Health System

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

Clinician information

CredentialDO
Medical schoolDes Moines University Of Osteopathic Medicine And Health Sciences
Graduation year2021 (5 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1710566799
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