NPPES file of Aug 9, 2026

Theresa Charmaine Austin, NP

Acute Care Nurse Practitioner · Sylmar, CA

Theresa Charmaine Austin, NP is an acute care nurse practitioner with a practice address in Sylmar, California, and NPI 1497324388, issued on Jun 23, 2021. Check the license (California 95017557, as entered in NPPES) with the California 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
1497324388
Name
Theresa Charmaine Austin
Credential
NP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
95017557 CA
Self-reported in NPPES; status is on the state search
Practice location
13963 Polk St, Sylmar, CA 91342
Phone
(818) 322-6095
Enumerated
Jun 23, 2021
Record last updated
Oct 27, 2023
Medicare enrollment
Enrolled (PECOS I20230605002903); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Theresa Charmaine Austin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95017557
    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 California license search

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27% more Medicare Part D claims than the average acute care nurse practitioner in 2024

752 Medicare Part D claims for 348 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Theresa Austin752
  2. Specialty average594

Most prescribed

  1. Azelastine Hcl52 claims
  2. Prednisone36 claims
  3. Amoxicillin-Clavulanate Potass32 claims
  4. Triamcinolone Acetonide29 claims
  5. Doxycycline Monohydrate28 claims
  6. Meloxicam25 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupPanorama City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Theresa Charmaine Austin among 1,810 acute care nurse practitioner records in California

Theresa Charmaine Austin, NP is one of 1,810 acute care nurse practitioner records with a practice address in California. 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 2021, is newer than 61% of them.

  • NPI issued2021 · 61% of these records are older, 32% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2020 · median 2018 among the 993 with a school on file
  • 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 363LA2100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in California

There are 1,810 acute care nurse practitioner records in California.

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

  1. Margarita Acosta, RN, AGACNPSylmar, CA 913421609202415
  2. Susan Crow, NPSymar, CA 913421811271539
  3. Sarah Jane Dy, ACNPSylmar, CA 913421144328428
  4. Tracy Finegan, NPSylmar, CA 913421124189014
  5. Lillian Ghosh, NPSylmar, CA 913421174284855
  6. Aurelia O'Connell, PHD, ACNPSylmar, CA 913421558498485
  7. Annette Pham, NPSylmar, CA 913421104923150
  8. Rajpreet Singh, NPSylmar, CA 913421689335978

Common questions

What is Theresa Charmaine Austin, NP's NPI number?

Theresa Charmaine Austin, NP's National Provider Identifier (NPI) is 1497324388, issued on Jun 23, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Theresa Charmaine Austin, NP located?

The NPPES record lists a practice address at 13963 Polk St, Sylmar, CA, 91342. Phone: (818) 322-6095. Providers update this record themselves, so call before visiting.

How can I verify Theresa Charmaine Austin, NP's license?

NPPES lists California license number 95017557, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Theresa Charmaine Austin, NP prescribe under Medicare Part D?

In 2024, Theresa Charmaine Austin, NP had 752 Medicare Part D claims for 348 beneficiaries; the average among acute care nurse practitioner prescribers was 594. 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.