NPPES file of Aug 9, 2026

Elizabeth Ngoc-Phu Phi, PA-C

Medical Physician Assistant · Santa Barbara, CA

Elizabeth Ngoc-Phu Phi, PA-C is a medical physician assistant with a practice address in Santa Barbara, California, and NPI 1124047691, issued on Jul 18, 2006. Check the license (California PA 18215, 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
1124047691
Name
Elizabeth Ngoc-Phu Phi
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
PA 18215 CA
Self-reported in NPPES; status is on the state search
Practice location
2954 State St, Santa Barbara, CA 93105
Phone
(805) 682-7411
Enumerated
Jul 18, 2006
Record last updated
Sep 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100615000178); 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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Also registered at 2954 State St

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

  1. Aaron Cotton-Betteridge, MDStudent in an Organized Health Care Education/Training Program1508506924
  2. James Kahn, M.D.Internal Medicine Physician1447359971
  3. Jillian Loewen, NPNurse Practitioner1154609600
  4. William Meller, M.D.Internal Medicine Physician1912006453
  5. Michael Reed, M.D.Family Medicine Physician1053463703
  6. Alan Wexlar, M.D.Family Medicine Physician1700985256

Verify Elizabeth Ngoc-Phu Phi 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 PA 18215
    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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86% fewer Medicare Part D claims than the average medical physician assistant in 2024

166 Medicare Part D claims for 125 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Elizabeth Phi166
  2. Specialty average1,148

Most prescribed

  1. Azithromycin18 claims
  2. Cephalexin14 claims
  3. Fluticasone Propionate14 claims
  4. Prednisone14 claims
  5. Albuterol Sulfate Hfa13 claims
  6. Amoxicillin-Clavulanate Potass12 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: $125.00

1 payment: food and beverage; the largest payer was Lundbeck LLC. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Elizabeth Phi$125.00
  2. Specialty average$1,055.00

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

Bills Medicare through one group practice

  1. Carehealth Medical CorporationChino, CA

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

Elizabeth Ngoc-Phu Phi among 3,376 medical physician assistant records in California

Elizabeth Ngoc-Phu Phi, PA-C is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 80% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2005 · median 2012 among the 1,347 with a school on file
  • Record last updated2010 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Ana AlldredgeSanta Barbara, CA 931051215704705
  2. Thomas Bosma, PA-CSanta Barbara, CA 931051255434544
  3. Erica Carleton, P.A.Santa Barbara, CA 931051235241290
  4. Jamie Duncan, P.A.Santa Barbara, CA 931051740561083
  5. Donna Fagan, PASanta Barbara, CA 931051114241106
  6. Sean Fisher, PASanta Barbara, CA 931051154512986
  7. Jennifer Hoyt, PASanta Barbara, CA 931051851328462
  8. Barbara IrishSanta Barbara, CA 931051003363847

Common questions

What is Elizabeth Ngoc-Phu Phi, PA-C's NPI number?

Elizabeth Ngoc-Phu Phi, PA-C's National Provider Identifier (NPI) is 1124047691, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Ngoc-Phu Phi, PA-C located?

The NPPES record lists a practice address at 2954 State St, Santa Barbara, CA, 93105. Phone: (805) 682-7411. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Ngoc-Phu Phi, PA-C's license?

NPPES lists California license number PA 18215, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Elizabeth Ngoc-Phu Phi, PA-C prescribe under Medicare Part D?

In 2024, Elizabeth Ngoc-Phu Phi, PA-C had 166 Medicare Part D claims for 125 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.