Registry data as of Aug 27, 2026

Olivia Wangensteen, PA-C

Physician Assistant · Duarte, CA

Olivia Wangensteen, PA-C is a physician assistant with a practice address in Duarte, California, and NPI 1285276022, issued on Oct 14, 2019. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1285276022
Name
Olivia Wangensteen
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
Practice location
1500 Duarte RD, Duarte, CA 91010
Phone
(626) 256-4673
Enumerated
Oct 14, 2019
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 1500 Duarte RD

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

  1. Chelsea Abad, CRNP, AGPCNP - BCNurse Practitioner1952848137
  2. Wajidah Abdul-KhabirHospitalist Physician1215323522
  3. Farah Abdulla, MDDermatology Physician1093934390
  4. Megan Abel, PA-CPhysician Assistant1104100619
  5. Michelle Afkhami, M.D.Molecular Genetic Pathology (Pathology) Physician1326230228
  6. Vaibhav Agrawal, M.D.Student in an Organized Health Care Education/Training Program1538402565

Verify Olivia Wangensteen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

93% fewer Medicare Part D claims than the average physician assistant in 2024

60 Medicare Part D claims for 30 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.

  1. Olivia Wangensteen60
  2. Specialty average832

Most prescribed

  1. Tamsulosin 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.

One hospital or facility affiliation

  1. Group Health Plan IncApple Valley, MN

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

43 physician assistant records list a Duarte practice address

They are 43 of the 1,287 NPPES records with a Duarte practice address, and 13,861 physician assistant records in California.

Other physician assistant records in California

  1. Marcia -Galbraith, PAStockton, CA1407143274
  2. Danny Abad, PAOrange, CA1477158673
  3. Lea Dominique Abadies, PATustin, CA1124754254
  4. Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
  5. Ramina Abbasi, PA-CSignal Hill, CA1093448300
  6. Ariel Abbott, PA-CStockton, CA1780334342
  7. Barrie Abbott, PA-CAnza, CA1861602575
  8. Elizabeth Abbott, PA-CSan Diego, CA1437540762
  9. Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
  10. Fatimeh Abdallah, P.A.-CNewport Beach, CA1487002218

Common questions

What is Olivia Wangensteen, PA-C's NPI number?

Olivia Wangensteen, PA-C's National Provider Identifier (NPI) is 1285276022, issued on Oct 14, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Olivia Wangensteen, PA-C located?

The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.

How can I verify Olivia Wangensteen, PA-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Olivia Wangensteen, PA-C prescribe under Medicare Part D?

In 2024, Olivia Wangensteen, PA-C had 60 Medicare Part D claims for 30 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.