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

Family Practice

John F. McCarthy Iii, MD

Works at hospitals in Kettering, OH · Ohio

Summary

Dr. John F. McCarthy Iii, MD is a family doctor at 1625 S Alex Rd, West Carrollton, OH 45449. Phone: (937) 865-0534. Accepts Medicare assignment. In 2024, John F. McCarthy Iii had 49 Original Medicare patients and 86 services. NPI 1063479947. 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.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 1625 S Alex Rd, West Carrollton, OH 45449 · Directions (3 more locations)
  • Phone: (937) 865‑0534
  • Medicare: Accepts Medicare assignment
  • Hospital: Kettering Health Main Campus
  • Group practice: Alliance Physicians Inc
  • Medical school: University Of Cincinnati College Of Medicine · graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about John F. McCarthy Iii, 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 John F. McCarthy Iii accept Medicare assignment?
Yes. Medicare's clinician data says John F. McCarthy Iii 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 John F. McCarthy Iii see?
In 2024, CMS data shows 49 Original Medicare patients and 86 services for John F. McCarthy Iii. This counts Original Medicare only and measures volume, not quality.
What is John F. McCarthy Iii's NPI number?
1063479947. 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 John F. McCarthy Iii, 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 patients49
Services billed to Medicare86
Different services or procedures15
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)28 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)24 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 cholesterol75%
  • High blood pressure71%
  • Arthritis39%
  • Diabetes35%
  • Depression33%
  • Chronic kidney disease27%

Hospitals where John F. McCarthy Iii works

Medicare's Facility Affiliation Data lists John F. McCarthy Iii 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.

  • Kettering Health Main CampusKettering, OH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 360079

Practice locations

Addresses where John F. McCarthy Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists John F. McCarthy Iii as a member of this group (CMS data updated October 2, 2026).

  • Alliance Physicians Inc324 clinicians in the group

Specialties

Find other Family Practice doctors in Ohio →

Other family doctors in West Carrollton

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

All family doctors in West Carrollton →

Other clinicians in Alliance Physicians Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Cincinnati College Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063479947
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