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Obstetrics/Gynecology

Ronald C. Merkel, MD

Sees patients in Montgomery, OH · Cincinnati, OH · Ohio

Summary

Dr. Ronald C. Merkel, MD is an OB-GYN at 10500 Montgomery Rd, Montgomery, OH 45242. Accepts Medicare assignment. In 2024, Ronald C. Merkel had 20 Original Medicare patients and 95 services. NPI 1417245978. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 10500 Montgomery Rd, Montgomery, OH 45242 · Directions (3 more locations)
  • Medicare: Accepts Medicare assignment
  • Group practice: TriHealth H LLC
  • Medical school: University Of Cincinnati College Of Medicine · graduated 2011 (15 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ronald C. Merkel, 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 Ronald C. Merkel accept Medicare assignment?
Yes. Medicare's clinician data says Ronald C. Merkel 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 Ronald C. Merkel see?
In 2024, CMS data shows 20 Original Medicare patients and 95 services for Ronald C. Merkel. This counts Original Medicare only and measures volume, not quality.
What is Ronald C. Merkel's NPI number?
1417245978. 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 Ronald C. Merkel, 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 patients20
Services billed to Medicare95
Different services or procedures10
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)11 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 cholesterol65%
  • High blood pressure60%

Practice locations

Addresses where Ronald C. Merkel is enrolled with Medicare (CMS data updated October 2, 2026).

  • 10500 Montgomery RdMontgomery, OH 45242
  • 10506 A Montgomery RdMontgomery, OH 45242
  • 375 Dixmyth AveCincinnati, OH 45220
  • 379 Dixmyth AveCincinnati, OH 45220

Group practices

Medicare enrollment lists Ronald C. Merkel as a member of this group (CMS data updated October 2, 2026).

  • TriHealth H LLC850 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Ohio →

Other OB-GYNs in Montgomery

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

All OB-GYNs in Montgomery →

Other clinicians in TriHealth H LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Cincinnati College Of Medicine
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417245978
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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