NPPES file of Aug 9, 2026

Heidi Marie Ostler, MD

Family Medicine Physician · Buda, TX

Heidi Marie Ostler, MD is a family medicine physician with a practice address in Buda, Texas, and NPI 1457678336, issued on Apr 30, 2010. Check the license (Texas R0966, as entered in NPPES) on the Texas Medical Board; 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
1457678336
Name
Heidi Marie Ostler
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
R0966 TX
Self-reported in NPPES; status is on the state search
Practice location
3420 FM 967 Ste B100, Buda, TX 78610
Phone
(512) 295-1608
Enumerated
Apr 30, 2010
Record last updated
Mar 2, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(512) 406-7325
Medicaid IDs
368025802 TX
368025801 TX
Medicare enrollment
Enrolled (PECOS I20170224000932); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2010
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 3420 FM 967 Ste B100

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

  1. Maria Alegria, MDPediatrics Physician1447944285
  2. Michael Ward, MDPediatrics Physician1952317216

Verify Heidi Marie Ostler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R0966
    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 Texas 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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94% fewer Medicare Part D claims than the average family medicine physician in 2024

201 Medicare Part D claims for 124 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Heidi Ostler201
  2. Specialty average3,544

Most prescribed

  1. Paxlovid20 claims
  2. Albuterol Sulfate Hfa19 claims
  3. Prednisone17 claims
  4. Amoxicillin-Clavulanate Potass12 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.

Bills Medicare through one group practice

  1. Austin Regional Clinic PARound Rock, TX

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

Heidi Marie Ostler among 11,119 family medicine physician records in Texas

Heidi Marie Ostler, MD 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 2010, is newer than 62% of them.

  • NPI issued2010 · 62% of these records are older, 36% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2010 · median 2004 among the 7,095 with a school on file
  • Record last updated2020 · 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).

4 family medicine physician records list a practice address in Buda

They are 4 of the 367 NPPES records with a practice address in Buda, and 11,119 family medicine physician records in Texas.

The 8 family medicine physician records with the nearest ZIP codes

  1. Gary Gilcrease, MDBuda, TX 786101427090893
  2. Victor Guerrero, MDBuda, TX 786101023075074
  3. John Lock, MDMountain City, TX 786101245218130
  4. Jacqueline Stritz, MDBuda, TX 786101770045189
  5. Walter Chesshir, MDBurnet, TX 786111043285836
  6. Camey Crane, D.O.Burnet, TX 786111881933760
  7. Charles Franz, D.O.Burnet, TX 786111912978206
  8. Robert Graves, DOBurnet, TX 786111982624854

Common questions

What is Heidi Marie Ostler, MD's NPI number?

Heidi Marie Ostler, MD's National Provider Identifier (NPI) is 1457678336, issued on Apr 30, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Heidi Marie Ostler, MD located?

The NPPES record lists a practice address at 3420 FM 967 Ste B100, Buda, TX, 78610. Phone: (512) 295-1608. Providers update this record themselves, so call before visiting.

How can I verify Heidi Marie Ostler, MD's license?

NPPES lists Texas license number R0966, 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 Heidi Marie Ostler, MD prescribe under Medicare Part D?

In 2024, Heidi Marie Ostler, MD had 201 Medicare Part D claims for 124 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.