John Haest, M.D.
Family Medicine Physician · Austin, TX
John Haest, M.D. is a family medicine physician with a practice address in Austin, Texas, and NPI 1538250840, issued on Sep 28, 2006. Check the license (Texas F9520, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Haest
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- F9520 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1501 W 5TH St, Austin, TX 78703
- Phone
- (512) 473-8900
- Enumerated
- Sep 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (512) 472-9898
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Verify John Haest in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license F9520Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
176 Medicare Part D claims for 33 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Liothyronine Sodium52 claims
- Levothyroxine Sodium36 claims
- Tirosint11 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.
John Haest among 11,119 family medicine physician records in Texas
John Haest, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2007 · 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).
544 family medicine physician records list a practice address in Austin
They are 544 of the 26,585 NPPES records with a practice address in Austin, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in Austin → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- John Durfor, M.D.Austin, TX 787031063769990
- Georgeanne Freeman, DOAustin, TX 787031194838409
- Katharina Hathaway, MDAustin, TX 787031346224094
- Emily Kautz, NPAustin, TX 787031013630011
- Linh NguyenAustin, TX 787031972244408
- Bruce Scaff, M.D.Austin, TX 787031801869441
- Tai Wong, M.D.Austin, TX 787031952494064
- Jae Yang, MDAustin, TX 787031275626012
Common questions
What is John Haest, M.D.'s NPI number?
John Haest, M.D.'s National Provider Identifier (NPI) is 1538250840, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Haest, M.D. located?
The NPPES record lists a practice address at 1501 W 5TH St, Austin, TX, 78703. Phone: (512) 473-8900. Providers update this record themselves, so call before visiting.
How can I verify John Haest, M.D.'s license?
NPPES lists Texas license number F9520, 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 Haest, M.D. prescribe under Medicare Part D?
In 2024, John Haest, M.D. had 176 Medicare Part D claims for 33 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.