NPPES file of Aug 9, 2026

Karen Lynette Williams, PA-C

Medical Physician Assistant · San Antonio, TX

Karen Lynette Williams, PA-C is a medical physician assistant with a practice address in San Antonio, Texas, and NPI 1598154650, issued on Jan 13, 2015. Check the license (Texas PA09610, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598154650
Name
Karen Lynette Williams
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA09610 TX
Self-reported in NPPES; status is on the state search
Practice location
4358 Lockhill Selma RD Ste 110, San Antonio, TX 78249
Phone
(210) 492-4200
Enumerated
Jan 13, 2015
Record last updated
May 16, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(210) 492-4380
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 4358 Lockhill Selma RD Ste 110

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

  1. Emily Galvan, FNPFamily Medicine Physician1538867569
  2. Shawn Mollica, PA-CPhysician Assistant1811988157

Verify Karen Lynette Williams 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 PA09610
    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

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74% fewer Medicare Part D claims than the average medical physician assistant in 2024

303 Medicare Part D claims for 43 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Karen Williams303
  2. Specialty average1,148

Most prescribed

  1. Mounjaro15 claims
  2. Escitalopram Oxalate12 claims
  3. Nebivolol Hcl12 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.

Industry payments in 2024: $434.08

24 payments; by number, the most common kind was food and beverage; the largest payer was Bausch Health US, LLC. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Karen Williams$434.08
  2. Specialty average$1,055.00

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

Karen Lynette Williams among 2,146 medical physician assistant records in Texas

Karen Lynette Williams, PA-C 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 2015, is newer than 67% of them.

  • NPI issued2015 · 67% of these records are older, 29% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 44% of these records are
  • Record last updated2018 · 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.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Felipe Galvan, PASan Antonio, TX 782491841327459
  2. Natalie MarshallSan Antonio, TX 782491548739451
  3. Cesar Veliz, PA-CSan Antonio, TX 782491891174686
  4. Roy Blount, P.A.San Antonio, TX 782511922176817
  5. Ronald Dinges, PA-CSan Antonio, TX 782471841307832
  6. Thomas Espinoza, PA-CSan Antonio, TX 782511720458870
  7. Mui Lee, PA-CSan Antonio, TX 782511366703118
  8. Callie Novosad, PASan Antonio, TX 782471396718144

Common questions

What is Karen Lynette Williams, PA-C's NPI number?

Karen Lynette Williams, PA-C's National Provider Identifier (NPI) is 1598154650, issued on Jan 13, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Karen Lynette Williams, PA-C located?

The NPPES record lists a practice address at 4358 Lockhill Selma RD Ste 110, San Antonio, TX, 78249. Phone: (210) 492-4200. Providers update this record themselves, so call before visiting.

How can I verify Karen Lynette Williams, PA-C's license?

NPPES lists Texas license number PA09610, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Karen Lynette Williams, PA-C prescribe under Medicare Part D?

In 2024, Karen Lynette Williams, PA-C had 303 Medicare Part D claims for 43 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.