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Family Practice

Michael D. Martz, DO

Works at hospitals in Saint Marys, OH · Lima, OH · Bellefontaine, OH · Ohio

Summary

Michael D. Martz, DO (Family Practice) is listed by Medicare at 5 hospitals in Saint Marys, OH, Lima, OH and Bellefontaine, OH. NPI 1477563740. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Michael D. Martz, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
22Years since medical school (graduated 2004)
Midwestern University, Chicago College Of Osteopathic MedMedical school
MaleGender (as listed)
Mercy Health Physicians Lima, LLCGroup practice

Quick answers

Which hospitals does Michael D. Martz work at?
Medicare's official clinician data lists Michael D. Martz at 5 hospitals: Grand Lake Health System, Institute for Orthopaedic Surgery, Lima Memorial Health System, Mary Rutan Hospital and Mercy Health St Ritas Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael D. Martz see patients?
Medicare's clinician data lists 1 practice location in Lima, OH. Call before your visit to confirm the address.
What is Michael D. Martz's specialty?
Medicare lists Family Practice as the primary specialty.
Does Michael D. Martz accept Medicare assignment?
Yes. Medicare's clinician data says Michael D. Martz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Michael D. Martz offer telehealth?
Medicare's clinician data says Michael D. Martz offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Michael D. Martz?
(419) 996-5780, as listed in official Medicare / NPI Registry data.
What is Michael D. Martz's NPI number?
1477563740. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael D. Martz works

Medicare's Facility Affiliation Data lists Michael D. Martz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Michael D. Martz is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael D. Martz as a member of this group (CMS data updated 2026-10-02).

  • Mercy Health Physicians Lima, LLC55 clinicians in the group

Specialties

Find other Family Practice doctors in Ohio →

Other family doctors in Lima

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

All family doctors in Lima →

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1477563740
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians