Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Orthopedic Surgery

Aaron M. Fritz, DO

Works at hospitals in Cleveland, OH · Kenton, OH · Marion, OH · Ohio

Summary

Dr. Aaron M. Fritz, DO is an orthopedic surgeon at 1040 Delaware Ave, Marion, OH 43302. Phone: (740) 383-7936. Accepts Medicare assignment. In 2024, Aaron M. Fritz had 212 Original Medicare patients and 1,570 services. NPI 1801854138. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Aaron M. Fritz, 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 Aaron M. Fritz accept Medicare assignment?
Yes. Medicare's clinician data says Aaron M. Fritz 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.
How many Medicare patients does Aaron M. Fritz see?
In 2024, CMS data shows 212 Original Medicare patients and 1,570 services for Aaron M. Fritz. This counts Original Medicare only and measures volume, not quality.
What is Aaron M. Fritz's NPI number?
1801854138. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Aaron M. Fritz, 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.

Original Medicare patients212
Services billed to Medicare1,570
Different services or procedures49
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)856 services
  2. Aspiration and/or injection of fluid from large joint (20610)242 services
  3. Hyaluronan or derivative, euflexxa, for intra-articular injection, per dose (J7323)104 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)79 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)36 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 pressure75%
  • Arthritis75%
  • High cholesterol72%
  • Diabetes30%
  • Ischemic heart disease30%
  • Chronic kidney disease29%

Hospitals where Aaron M. Fritz works

Medicare's Facility Affiliation Data lists Aaron M. Fritz 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.

  • Cleveland ClinicCleveland, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360180
  • Hardin Memorial HospitalKenton, OH · Critical Access Hospital · Emergency services: listed by Medicare · CCN 361315
  • Marion General HospitalMarion, OH · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 360011

Practice locations

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

Group practices

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

  • Marion Area Physicians LLC181 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Ohio →

Other orthopedic surgeons in Marion

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

All orthopedic surgeons in Marion →

Other clinicians in Marion Area Physicians LLC

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

Clinician information

CredentialDO
Medical schoolOhio State University College Of Medicine
Graduation year1990 (36 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801854138
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. 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