Alexandra Massey, PA-C
Physician Assistant · La Jolla, CA
Alexandra Massey, PA-C is a physician assistant with a practice address in La Jolla, California, and NPI 1013538776, issued on May 4, 2020. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexandra Massey
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 9300 Campus Point Dr, La Jolla, CA 92037
- Phone
- (858) 657-7000
- Enumerated
- May 4, 2020
- Record last updated
- May 18, 2026
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
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A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alexandra Massey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average physician assistant in 2024
77 Medicare Part D claims for 12 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Escitalopram Oxalate12 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.
Alexandra Massey among 14,451 physician assistant records in California
Alexandra Massey, 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 2020, is newer than 62% of them.
- NPI issued2020 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2026 · 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).
136 physician assistant records list a practice address in La Jolla
They are 136 of the 3,648 NPPES records with a practice address in La Jolla, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in La Jolla → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Heather Bonaguidi, P.A.La Jolla, CA 920371669458691
- Abha Bosworth, PALa Jolla, CA 920371629067053
- Daniel Collins, P.A.La Jolla, CA 920371548247158
- Doris Elias, P.A.La Jolla, CA 920371457338089
- Karen Fetzer, P.A.-C.La Jolla, CA 920371063490761
- Susan Gilroy, P.A.-C.La Jolla, CA 920371992783575
- Madonna Guzman, P.A.-C.La Jolla, CA 920371871571455
- Christy Kerr, P.A.-C.La Jolla, CA 920371184602336
Common questions
What is Alexandra Massey, PA-C's NPI number?
Alexandra Massey, PA-C's National Provider Identifier (NPI) is 1013538776, issued on May 4, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Massey, PA-C located?
The NPPES record lists a practice address at 9300 Campus Point Dr, La Jolla, CA, 92037. Phone: (858) 657-7000. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Massey, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alexandra Massey, PA-C prescribe under Medicare Part D?
In 2024, Alexandra Massey, PA-C had 77 Medicare Part D claims for 12 beneficiaries; the average among physician assistant prescribers was 830. 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.