Registry data as of Aug 27, 2026

Javier Castillo, M.D.

Obstetrics & Gynecology Physician · San Antonio, TX

Javier Castillo, M.D. is an obstetrics & gynecology physician with a practice address in San Antonio, Texas, and NPI 1427386804, issued on Nov 24, 2009. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1427386804
Name
Javier Castillo
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
Practice location
5414 Fredericksburg RD, San Antonio, TX 78229
Phone
(210) 614-2209
Enumerated
Nov 24, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5414 Fredericksburg RD

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

  1. Mofesola AdeolaClinical Social Worker1154295087
  2. Kathy Ballard, NNPNeonatal Intensive Care Registered Nurse1669490918
  3. Inger Barker, NNPCritical Care Neonatal Nurse Practitioner1306870340
  4. Isabel Basaldu-Prado, MDNeonatal-Perinatal Medicine Physician1942263926
  5. Deborah Catland, NNPCritical Care Neonatal Nurse Practitioner1932133972
  6. Anthony CorbetNeonatal-Perinatal Medicine Physician1649228487

Verify Javier Castillo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical BoardCheck 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.

92% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

15 Medicare Part D claims, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D.

  1. Javier Castillo15
  2. Specialty average188

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.

One hospital or facility affiliation

  1. Children's Physician Services OF South TexasCorpus Christi, TX

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Obstetrics & Gynecology Physician providers in Texas

There are 3,466 obstetrics & gynecology physician records in Texas.

All 3,466 in Texas → Every provider in San Antonio →

Other obstetrics & gynecology physician records in Texas

  1. Soroush Aalipourbirgani, MDHouston, TX1144859901
  2. Dennis Abbas, M.D.Dallas, TX1013928720
  3. Mina Abbassi-Ghanavati, MDDallas, TX1154509610
  4. Lillian Abbott, MDWebster, TX1114989316
  5. Jasmin Abdeldayem, MDHouston, TX1962086462
  6. Fathma Abdulkhader, MDGalveston, TX1578491866
  7. Elizabeth Abels, MDHouston, TX1417516881
  8. Shannon Abikhaled, MDAustin, TX1699762427
  9. Oluwatomilona Abiodun, MDAustin, TX1649857160
  10. Ahmed Abouseif, MBBCHHouston, TX1831722339

Common questions

What is Javier Castillo, M.D.'s NPI number?

Javier Castillo, M.D.'s National Provider Identifier (NPI) is 1427386804, issued on Nov 24, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Javier Castillo, M.D. located?

The NPPES record lists a practice address at 5414 Fredericksburg RD, San Antonio, TX, 78229. Phone: (210) 614-2209. Providers update this record themselves, so call before visiting.

How can I verify Javier Castillo, M.D.'s license?

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 Javier Castillo, M.D. prescribe under Medicare Part D?

In 2024, Javier Castillo, M.D. had 15 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.