NPPES file of Aug 9, 2026

John A. Horn, M.D.

Family Medicine Physician · Grove City, OH

John A. Horn, M.D. is a family medicine physician with a practice address in Grove City, Ohio, and NPI 1841239431, issued on Jun 6, 2006. Check the license (Ohio 35-071663, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1841239431
Name
John A. Horn
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
35-071663 OH
Self-reported in NPPES; status is on the state search
Practice location
6024 Hoover RD, Grove City, OH 43123
Phone
(614) 875-8949
Enumerated
Jun 6, 2006
Record last updated
Feb 23, 2022
Fax
(614) 539-4610
Medicaid ID
2073027 OH
Medicare enrollment
Enrolled (PECOS I20051006001047); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 1995
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6024 Hoover RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Charles Baughman, M.D.Family Medicine Physician1669411252
  2. Jared Bloom, DPTPhysical Therapist1063799799
  3. Laura Burkhart, CRNPFamily Nurse Practitioner1831114230
  4. Trevor Davy, DPMFoot & Ankle Surgery Podiatrist1306830294
  5. Frances Charlene Horenstein, MDGastroenterology Physician1033466008
  6. Vijay Jain, MDInternal Medicine Physician1093709941

Verify John A. Horn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35-071663
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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3.3 times the Medicare Part D claims of the average family medicine physician in 2024

11,809 Medicare Part D claims for 868 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 215 claims were for opioids.

  1. John Horn11,809
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium749 claims
  2. Amlodipine Besylate437 claims
  3. Levothyroxine Sodium409 claims
  4. Pantoprazole Sodium367 claims
  5. Metoprolol Succinate365 claims
  6. Lisinopril337 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $21.65

1 payment: food and beverage; the largest payer was Dexcom, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Horn$21.65
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Mount Carmel Healthproviders IncNew Albany, OH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John A. Horn among 5,606 family medicine physician records in Ohio

John A. Horn, M.D. is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.

  • NPI issued2006 · 18% of these records are older, 48% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1995 · median 2005 among the 3,510 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

59 family medicine physician records list a practice address in Grove City

They are 59 of the 1,237 NPPES records with a practice address in Grove City, and 5,606 family medicine physician records in Ohio.

The 8 family medicine physician records with the nearest ZIP codes

  1. Paul Bennett, M.D.Grove City, OH 431231801855853
  2. William Burke, D.O.Grove City, OH 431231003899204
  3. Alfredo Figueroa, D.O.Grove City, OH 431231457333221
  4. Donald Furci, D.O.Grove City, OH 431231861474397
  5. Nancy Henceroth-Gatto, D.O.Grove City, OH 431231164497335
  6. Charles Hirth, M.D.Grove City, OH 431231548248271
  7. Richard Janczak, MDGrove City, OH 431231194764373
  8. Gregory Runser, M.D.Grove City, OH 431231750320347

Common questions

What is John A. Horn, M.D.'s NPI number?

John A. Horn, M.D.'s National Provider Identifier (NPI) is 1841239431, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John A. Horn, M.D. located?

The NPPES record lists a practice address at 6024 Hoover RD, Grove City, OH, 43123. Phone: (614) 875-8949. Providers update this record themselves, so call before visiting.

How can I verify John A. Horn, M.D.'s license?

NPPES lists Ohio license number 35-071663, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John A. Horn, M.D. prescribe under Medicare Part D?

In 2024, John A. Horn, M.D. had 11,809 Medicare Part D claims for 868 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.