NPPES file of Aug 9, 2026

Sean O'Neil, M.D.

Infectious Disease Physician · San Antonio, TX

Sean O'Neil, M.D. is an infectious disease physician with a practice address in San Antonio, Texas, and NPI 1588985246, issued on Jun 17, 2010. Check the license (Texas R3569, 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
1588985246
Name
Sean O'Neil
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
R3569 TX
Self-reported in NPPES; status is on the state search
Practice location
903 W Martin St, San Antonio, TX 78207
Phone
(210) 358-3555
Enumerated
Jun 17, 2010
Record last updated
Sep 3, 2024
Medicaid ID
400054901 TX
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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8 nearest infectious disease physician records → All 674 in Texas → Look up another NPI →

Also registered at 903 W Martin St

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

  1. Rana AbdelwahabStudent in an Organized Health Care Education/Training Program1194668525
  2. Sandra Adams, MDPulmonary Disease Physician1669483186
  3. Leticia Aguilar, MDFamily Medicine Physician1760451009
  4. Zuha AlamStudent in an Organized Health Care Education/Training Program1932995669
  5. Samantha Alvarado, MDObstetrics Physician1932894862
  6. Daniel Amram, MDStudent in an Organized Health Care Education/Training Program1265236822

Verify Sean O'Neil in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R3569    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

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Industry payments in 2024: $34.99

1 payment: food and beverage; the largest payer was Cumberland Pharmaceuticals, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sean O'Neil$34.99
  2. Specialty average$4,362.19

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Sean O'Neil among 674 infectious disease physician records in Texas

Sean O'Neil, M.D. is one of 674 infectious disease physician records with a practice address in Texas. 84% 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 65% of them.

  • NPI issued2010 · 65% of these records are older, 31% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileNo · 76% of these records are
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Texas

There are 674 infectious disease physician records in Texas.

All 674 in Texas → Every provider in San Antonio → Infectious Disease Physician nationwide →

The 8 infectious disease physician records with the nearest ZIP codes

  1. Jason Bowling, M.D.San Antonio, TX 782071477573095
  2. Divya Chandramohan, MDSan Antonio, TX 782071467972208
  3. Manuel Camilo Endo Carvajal, MDSan Antonio, TX 782071346760956
  4. Heta Javeri, M.D.San Antonio, TX 782071457517088
  5. Maryem Lodhra, M.D.San Antonio, TX 782071457857708
  6. Philip Ponce, MDSan Antonio, TX 782071649426123
  7. Ruth Serrano Pinilla, MDSan Antonio, TX 782071285073122
  8. Nicolas Melgarejo, M.D.San Antonio, TX 782051386882520

Common questions

What is Sean O'Neil, M.D.'s NPI number?

Sean O'Neil, M.D.'s National Provider Identifier (NPI) is 1588985246, issued on Jun 17, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Sean O'Neil, M.D. located?

The NPPES record lists a practice address at 903 W Martin St, San Antonio, TX, 78207. Phone: (210) 358-3555. Providers update this record themselves, so call before visiting.

How can I verify Sean O'Neil, M.D.'s license?

NPPES lists Texas license number R3569, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.