John Gaston Horner, M.D.
Family Medicine Physician · Olney, TX
John Gaston Horner, M.D. is a family medicine physician with a practice address in Olney, Texas, and NPI 1598997298, issued on Aug 13, 2009. Check the license (Texas P2459, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Gaston Horner
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- P2459 TX
Self-reported in NPPES; status is on the state search - Practice location
- 100 S Avenue M, Olney, TX 76374
- Phone
- (940) 564-3546
- Enumerated
- Aug 13, 2009
- Record last updated
- Sep 25, 2025
- Fax
- (940) 564-8882
- Medicare enrollment
- Enrolled (PECOS I20120926000786); may accept Medicare assignment
- Medical or professional school
- University Of North Dakota School Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 100 S Avenue M
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachael Creel, NP-CFamily Nurse Practitioner1457698615
- Brandie Daws, FNP-CFamily Nurse Practitioner1003467176
- Megan Hammonds, MSN, APRN, FNP-CFamily Nurse Practitioner1912612383
- Jhulma Tejada, PT, DPTPhysical Therapist1750001756
Verify John Gaston Horner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P2459Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average family medicine physician in 2024
2,900 Medicare Part D claims for 315 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Atorvastatin Calcium135 claims
- Levothyroxine Sodium89 claims
- Losartan Potassium84 claims
- Prednisone84 claims
- Amlodipine Besylate81 claims
- Pantoprazole Sodium73 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: $119.51
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Concord Medical Group OF Texas PLLCLlano, TX
- Olney-Hamilton Hospital DistrictOlney, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Gaston Horner among 11,119 family medicine physician records in Texas
John Gaston Horner, M.D. is one of 11,119 family medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 59% of them.
- NPI issued2009 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2009 · median 2004 among the 7,095 with a school on file
- Record last updated2025 · 51% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 family medicine physician records list a practice address in Olney
They are 3 of the 28 NPPES records with a practice address in Olney, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Olney → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mark Mankins, M.D.Olney, TX 763741952416158
- Aaron Purdy, M.D.Olney, TX 763741750567228
- Randall Sloan, DOMunday, TX 763711437111887
- Selah Mauldin, DOSeymour, TX 763801609517655
- Christie Munoz, M.D.Seymour, TX 763801134515901
- John Rose, DOSeymour, TX 763801356387641
- James Doherty, DOIowa Park, TX 763671073702585
- David Potter, D.O.Iowa Park, TX 763671639472632
Common questions
What is John Gaston Horner, M.D.'s NPI number?
John Gaston Horner, M.D.'s National Provider Identifier (NPI) is 1598997298, issued on Aug 13, 2009. An NPI identifies a provider in billing; it is not a license.
Where is John Gaston Horner, M.D. located?
The NPPES record lists a practice address at 100 S Avenue M, Olney, TX, 76374. Phone: (940) 564-3546. Providers update this record themselves, so call before visiting.
How can I verify John Gaston Horner, M.D.'s license?
NPPES lists Texas license number P2459, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Gaston Horner, M.D. prescribe under Medicare Part D?
In 2024, John Gaston Horner, M.D. had 2,900 Medicare Part D claims for 315 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.