NPPES file of Aug 9, 2026

Gay Lynn Armstrong, APRN

Nurse Practitioner · Round Rock, TX

Gay Lynn Armstrong, APRN is a nurse practitioner with a practice address in Round Rock, Texas, and NPI 1366050783, issued on Jul 22, 2020. Check the license (Texas AP143868, 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
1366050783
Name
Gay Lynn Armstrong
Credential
APRN
Primary taxonomy
Nurse Practitioner 363L00000X
License number
AP143868 TX
Self-reported in NPPES; status is on the state search
Practice location
7201 Wyoming Drive, Round Rock, TX 78681
Phone
(855) 876-7246
Enumerated
Jul 22, 2020
Record last updated
Mar 7, 2023
Fax
(855) 277-5070
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 Gay Lynn Armstrong 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 AP143868
    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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89% fewer Medicare Part D claims than the average nurse practitioner in 2024

121 Medicare Part D claims for 63 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. 29 claims were for opioids.

  1. Gay Armstrong121
  2. Specialty average1,109

Most prescribed

  1. Tramadol Hcl21 claims
  2. Gabapentin20 claims
  3. Pregabalin11 claims
  4. Tizanidine Hcl11 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: $115.81

4 payments; by number, the most common kind was food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gay Armstrong$115.81
  2. Specialty average$791.64

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

Gay Lynn Armstrong among 4,825 nurse practitioner records in Texas

Gay Lynn Armstrong, APRN is one of 4,825 nurse practitioner records with a practice address in Texas. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 62% of them.

  • NPI issued2020 · 62% of these records are older, 31% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2023 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nurse Practitioner providers in Texas

There are 4,825 nurse practitioner records in Texas.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Stephanie Agrella, N.P.Round Rock, TX 786811588618987
  2. Maheen Arastu, NPRound Rock, TX 786811326612078
  3. Lauren Casey, APRN,FNP-CRound Rock, TX 786811033710447
  4. Tracy Chan, NPRound Rock, TX 786811962989210
  5. Dorothy Cheng, RNRound Rock, TX 786811588905277
  6. Channing Drummond, ACNP-BCRound Rock, TX 786811740693670
  7. Matthew Frank, AGACNP-BC, FNP-BCRound Rock, TX 786811598370421
  8. Kimberly Jones, MSN, RN, FNPRound Rock, TX 786811811483589

Common questions

What is Gay Lynn Armstrong, APRN's NPI number?

Gay Lynn Armstrong, APRN's National Provider Identifier (NPI) is 1366050783, issued on Jul 22, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Gay Lynn Armstrong, APRN located?

The NPPES record lists a practice address at 7201 Wyoming Drive, Round Rock, TX, 78681. Phone: (855) 876-7246. Providers update this record themselves, so call before visiting.

How can I verify Gay Lynn Armstrong, APRN's license?

NPPES lists Texas license number AP143868, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

How much does Gay Lynn Armstrong, APRN prescribe under Medicare Part D?

In 2024, Gay Lynn Armstrong, APRN had 121 Medicare Part D claims for 63 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.