NPPES file of Aug 9, 2026

Stellamaris Williams, FNP-BC

Primary Care Nurse Practitioner · San Antonio, TX

Stellamaris Williams, FNP-BC is a primary care nurse practitioner with a practice address in San Antonio, Texas, and NPI 1306355375, issued on Sep 21, 2017. Check the license (Texas AP135970, 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
1306355375
Name
Stellamaris Williams
Credential
FNP-BC
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
AP135970 TX
Self-reported in NPPES; status is on the state search
Practice location
8414 Fountain Cir, San Antonio, TX 78229
Phone
(210) 277-7795
Enumerated
Sep 21, 2017
Record last updated
Jul 15, 2026
Fax
(210) 277-7550
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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Verify Stellamaris 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 AP135970
    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
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76% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024

364 Medicare Part D claims for 16 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Stellamaris Williams364
  2. Specialty average1,492

Most prescribed

  1. Fluticasone Propionate38 claims
  2. Albuterol Sulfate Hfa18 claims
  3. Atorvastatin Calcium18 claims
  4. Levothyroxine Sodium16 claims
  5. Metoprolol Tartrate15 claims
  6. Alendronate Sodium13 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: $35.52

1 payment: food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 4,321 providers of this specialty with any payment received $625.13 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stellamaris Williams$35.52
  2. Specialty average$625.13

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

Stellamaris Williams among 822 primary care nurse practitioner records in Texas

Stellamaris Williams, FNP-BC is one of 822 primary care nurse practitioner records with a practice address in Texas. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 25% of them.

  • NPI issued2017 · 25% of these records are older, 68% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileNo · 42% of these records are
  • Record last updated2026 · 32% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Primary Care Nurse Practitioner providers in Texas

There are 822 primary care nurse practitioner records in Texas.

The 8 primary care nurse practitioner records with the nearest ZIP codes

  1. Laurie Collis, DNPSan Antonio, TX 782291922510320
  2. Hannah Garcia, APRN-CNPSan Antonio, TX 782291619644390
  3. Jing LiSan Antonio, TX 782291760811020
  4. Lisa McLaughlin-Contreras, FNPSan Antonio, TX 782291467608547
  5. Jennifer Montalvo, APRN FNPSan Antonio, TX 782291114636545
  6. Gabriella Mutschlechner, FNP-CSan Antonio, TX 782291649862202
  7. Jaime OlaguezSan Antonio, TX 782291124830062
  8. Rebecca Polanco, FNP-CSan Antonio, TX 782291336868462

Common questions

What is Stellamaris Williams, FNP-BC's NPI number?

Stellamaris Williams, FNP-BC's National Provider Identifier (NPI) is 1306355375, issued on Sep 21, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Stellamaris Williams, FNP-BC located?

The NPPES record lists a practice address at 8414 Fountain Cir, San Antonio, TX, 78229. Phone: (210) 277-7795. Providers update this record themselves, so call before visiting.

How can I verify Stellamaris Williams, FNP-BC's license?

NPPES lists Texas license number AP135970, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Stellamaris Williams, FNP-BC prescribe under Medicare Part D?

In 2024, Stellamaris Williams, FNP-BC had 364 Medicare Part D claims for 16 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. 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.