Elizabeth Josephine Phillips, PA-C
Physician Assistant · Castro Valley, CA
Elizabeth Josephine Phillips, PA-C is a physician assistant with a practice address in Castro Valley, California, and NPI 1093253924, issued on Feb 11, 2017. Check the license (California 54227, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elizabeth Josephine Phillips
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 54227 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20206 Glenwood Dr, Castro Valley, CA 94552
- Phone
- (510) 415-1986
- Enumerated
- Feb 11, 2017
- Record last updated
- Feb 11, 2017 (not updated in 9 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Elizabeth Josephine Phillips in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 54227Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average physician assistant in 2024
55 Medicare Part D claims for 32 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $166.66
6 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Elizabeth Josephine Phillips among 14,451 physician assistant records in California
Elizabeth Josephine Phillips, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% 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 47% of them.
- NPI issued2017 · 47% of these records are older, 48% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2017 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 physician assistant records list a practice address in Castro Valley
They are 28 of the 999 NPPES records with a practice address in Castro Valley, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Castro Valley → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christina Sanchez, PA-CCastro Valley, CA 945521134892417
- Gabriela Castro, PA-CMartinez, CA 945531215895412
- Elizaveta Delong, PA-CMartinez, CA 945531922575166
- Matthew Dong, PAMartinez, CA 945531144612243
- Alysse Dunn, PA-CMartinez, CA 945531992042568
- Vikas Patel, P.AMartinez, CA 945531962433698
- Naima Thomas, PHYSICIAN ASSISTANTMartinez, CA 945531629275722
- Jessica Cuellar, PA-CLivermore, CA 945501710525605
Common questions
What is Elizabeth Josephine Phillips, PA-C's NPI number?
Elizabeth Josephine Phillips, PA-C's National Provider Identifier (NPI) is 1093253924, issued on Feb 11, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth Josephine Phillips, PA-C located?
The NPPES record lists a practice address at 20206 Glenwood Dr, Castro Valley, CA, 94552. Phone: (510) 415-1986. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth Josephine Phillips, PA-C's license?
NPPES lists California license number 54227, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Elizabeth Josephine Phillips, PA-C prescribe under Medicare Part D?
In 2024, Elizabeth Josephine Phillips, PA-C had 55 Medicare Part D claims for 32 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Elizabeth Josephine Phillips, PA-C's MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.