Richard J. Williamson, PA-C
Physician Assistant · San Antonio, TX
Richard J. Williamson, PA-C is a physician assistant with a practice address in San Antonio, Texas, and NPI 1619936010, issued on Mar 23, 2006. Check the license (Texas PA00321, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Richard J. Williamson
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA00321 TX
Self-reported in NPPES; status is on the state search - Practice location
- 8300 Floyd Curl Dr, San Antonio, TX 78229
- Phone
- (210) 450-9700
- Enumerated
- Mar 23, 2006
- Record last updated
- Nov 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (210) 450-6039
- Medicare enrollment
- Enrolled (PECOS I20080625000300); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 10,999 in Texas → Look up another NPI →
Also registered at 8300 Floyd Curl Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Richard J. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license PA00321Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- 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).
Richard J. Williamson among 10,999 physician assistant records in Texas
Richard J. Williamson, PA-C is one of 10,999 physician assistant records with a practice address in Texas. 74% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 86% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1981 · median 2017 among the 6,096 with a school on file
- Record last updated2011 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
873 physician assistant records list a practice address in San Antonio
They are 873 of the 37,749 NPPES records with a practice address in San Antonio, and 10,999 physician assistant records in Texas.
All 10,999 in Texas → Every provider in San Antonio → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christa Black, PA-CSan Antonio, TX 782291033177837
- Leticia Bland, PA-CSan Antonio, TX 782291659356178
- Karen Burchell, PA-CSan Antonio, TX 782291992772503
- John Curran, PASan Antonio, TX 782291174583892
- Sara Dungan, PA-CSan Antonio, TX 782291518917319
- Melinda Ellis, PA-CSan Antonio, TX 782291710954581
- Stanley Oatman, P.A-CSan Antonio, TX 782291215982434
- Stephanie Philipp, PACSan Antonio, TX 782291881662757
Common questions
What is Richard J. Williamson, PA-C's NPI number?
Richard J. Williamson, PA-C's National Provider Identifier (NPI) is 1619936010, issued on Mar 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard J. Williamson, PA-C located?
The NPPES record lists a practice address at 8300 Floyd Curl Dr, San Antonio, TX, 78229. Phone: (210) 450-9700. Providers update this record themselves, so call before visiting.
How can I verify Richard J. Williamson, PA-C's license?
NPPES lists Texas license number PA00321, 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.
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.