NPPES file of Aug 9, 2026

Martha Margarita Williams, CPNP

Pediatric Nurse Practitioner · San Antonio, TX

Martha Margarita Williams, CPNP is a pediatric nurse practitioner with a practice address in San Antonio, Texas, and NPI 1730236670, issued on Jan 4, 2007. Check the license (Texas 504915, as entered in NPPES) with the Texas board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1730236670
Name
Martha Margarita Williams
Credential
CPNP
Primary taxonomy
Pediatric Nurse Practitioner 363LP0200X
License number
504915 TX
Self-reported in NPPES; status is on the state search
Practice location
630 S General Mcmullen Dr, San Antonio, TX 78237
Phone
(210) 644-8500
Enumerated
Jan 4, 2007
Record last updated
Aug 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(210) 644-8507
Medicaid ID
062640003 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 pediatric nurse practitioner records → All 2,220 in Texas → Look up another NPI →

Also registered at 630 S General Mcmullen Dr

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

  1. Norma Gutierrez, RNAmbulatory Care Registered Nurse1134557325
  2. Gina HuronRegistered Nurse1427484740
  3. Gabriela Montejano - De La Cruz, R.N.Registered Nurse1508144320
  4. Eva Prieto, RNRegistered Nurse1437437241
  5. Peggy Reid, RNRegistered Nurse1659659779
  6. Adriana Segura, DDSPediatric Dentistry1508892043

Verify Martha Margarita 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 504915    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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Martha Margarita Williams among 2,220 pediatric nurse practitioner records in Texas

Martha Margarita Williams, CPNP is one of 2,220 pediatric nurse practitioner records with a practice address in Texas. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 13% of them.

  • NPI issued2007 · 13% of these records are older, 79% newer
  • In a Medicare fileNo · 42% of these records are
  • In the CMS Doctors and Clinicians fileNo · 9% of these records are
  • Record last updated2016 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0200X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Nurse Practitioner providers in Texas

There are 2,220 pediatric nurse practitioner records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,220 in Texas → Every provider in San Antonio → Pediatric Nurse Practitioner nationwide →

The 8 pediatric nurse practitioner records with the nearest ZIP codes

  1. Shikha LakhwaraSan Antonio, TX 782371700418506
  2. Grace SeguraSan Antonio, TX 782371083183479
  3. Justin Vine, NPSan Antonio, TX 782371831662873
  4. Erica Banks, CPNPSan Antonio, TX 782361417260076
  5. Lorraine Barton, PNPSan Antonio, TX 782381134121650
  6. Chelsea BoundsLeon Valley, TX 782381851066203
  7. Sheila Brown, DNPJbsa Lackland, TX 782361427610799
  8. Amy Darden, PNPSan Antonio, TX 782381558804914

Common questions

What is Martha Margarita Williams, CPNP's NPI number?

Martha Margarita Williams, CPNP's National Provider Identifier (NPI) is 1730236670, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Martha Margarita Williams, CPNP located?

The NPPES record lists a practice address at 630 S General Mcmullen Dr, San Antonio, TX, 78237. Phone: (210) 644-8500. Providers update this record themselves, so call before visiting.

How can I verify Martha Margarita Williams, CPNP's license?

NPPES lists Texas license number 504915, 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. 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.