Diana Horton, MD
Internal Medicine Physician · Austin, TX
Diana Horton, MD is an internal medicine physician with a practice address in Austin, Texas, and NPI 1467432880, issued on Jan 20, 2006. Check the license (Texas J0002, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Diana Horton
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- J0002 TX
Self-reported in NPPES; status is on the state search - Practice location
- 4207 James Casey St, Austin, TX 78745
- Phone
- (512) 445-9000
- Enumerated
- Jan 20, 2006
- Record last updated
- Jul 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (512) 306-8788
- Entity
- Type 1 · individual
Also registered at 4207 James Casey St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Diana Horton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J0002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
52 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Atorvastatin Calcium11 claims
- Mirtazapine11 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.
606 internal medicine physician records list a practice address in Austin
They are 606 of the 26,585 NPPES records with a practice address in Austin, and 9,175 internal medicine physician records in Texas.
All 606 in Austin → All 9,175 in Texas → Every provider in Austin →
Other internal medicine physician records in Texas
- Muhammad A. Sattar, MDDallas, TX1760465553
- Gayatri Aaluri, MDGalveston, TX1821928508
- Anunaya AashishDenton, TX1134246374
- Queenie Ann Abad, M.D.San Antonio, TX1174979785
- Fuad Abaleka, M.DLubbock, TX1861925596
- Carol Abalihi, M.D.El Paso, TX1326136243
- Oliverio Abarca Guzman, MDHarlingen, TX1346972940
- Obinna Abaribe, M.DMansfield, TX1457704355
- Enyinnaya Abarikwu, MDTyler, TX1174788178
- Sulaiman Abawi, D.O.Frisco, TX1780845255
Common questions
What is Diana Horton, MD's NPI number?
Diana Horton, MD's National Provider Identifier (NPI) is 1467432880, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diana Horton, MD located?
The NPPES record lists a practice address at 4207 James Casey St, Austin, TX, 78745. Phone: (512) 445-9000. Providers update this record themselves, so call before visiting.
How can I verify Diana Horton, MD's license?
NPPES lists Texas license number J0002, 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 Diana Horton, MD prescribe under Medicare Part D?
In 2024, Diana Horton, MD had 52 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.