NPPES file of Aug 9, 2026

William Butler, PA

Medical Physician Assistant · San Antonio, TX

William Butler, PA is a medical physician assistant with a practice address in San Antonio, Texas, and NPI 1588771554, issued on Aug 24, 2006. Check the license (Texas PA02542, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588771554
Name
William Butler
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA02542 TX
Self-reported in NPPES; status is on the state search
Practice location
4502 Medical Dr, San Antonio, TX 78229
Phone
(210) 257-1400
Enumerated
Aug 24, 2006
Record last updated
May 6, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicaid ID
191840101 TX
Medicare enrollment
Enrolled (PECOS I20090504000313); accepts Medicare assignment
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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8 nearest medical physician assistant records → All 2,146 in Texas → Look up another NPI →

Also registered at 4502 Medical Dr

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

  1. Aaron Abarbanell, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1245497809
  2. Ayham AbdelAnesthesiology Physician1467147496
  3. Ali Abedi, M.D.Pulmonary Disease Physician1346566312
  4. Jordan Abel, M.D.Infectious Disease Physician1417273301
  5. Aesha Aboueisha, MDHospitalist Physician1225527815
  6. Seena Abraham, MDFamily Medicine Physician1306338561

Verify William Butler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license PA02542    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
Find 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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Bills Medicare through one group practice

  1. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

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

William Butler among 2,146 medical physician assistant records in Texas

William Butler, PA is one of 2,146 medical physician assistant records with a practice address in Texas. 68% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 73% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated1999 · median 2012 among the 953 with a school on file
  • Record last updated2009 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Texas

There are 2,146 medical physician assistant records in Texas.

All 2,146 in Texas → Every provider in San Antonio → Medical Physician Assistant nationwide →

The 8 medical physician assistant records with the nearest ZIP codes

  1. Christopher Delallo, MPAS,PA-CSan Antonio, TX 782291679680664
  2. Ngoc-Diep Do, MPA-CSan Antonio, TX 782291336122829
  3. Reena Doane, PA-CSan Antonio, TX 782291982638235
  4. Tommy Doster, PA-C, MPASSan Antonio, TX 782291568422749
  5. N Fields, P.A.San Antonio, TX 782291578532529
  6. John Kodosky, PA-CSan Antonio, TX 782291548377617
  7. Robert Lawson, PA-CSan Antonio, TX 782291255448320
  8. Doo San Lee, PASan Antonio, TX 782291487761458

Common questions

What is William Butler, PA's NPI number?

William Butler, PA's National Provider Identifier (NPI) is 1588771554, issued on Aug 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Butler, PA located?

The NPPES record lists a practice address at 4502 Medical Dr, San Antonio, TX, 78229. Phone: (210) 257-1400. Providers update this record themselves, so call before visiting.

How can I verify William Butler, PA's license?

NPPES lists Texas license number PA02542, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity 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.

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.