Brianne Kathleen Cassidy
Medical Physician Assistant · San Leandro, CA
Brianne Kathleen Cassidy is a medical physician assistant with a practice address in San Leandro, California, and NPI 1982171377, issued on Oct 24, 2018. Check the license (California 55848, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Brianne Kathleen Cassidy
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- 55848 CA
Self-reported in NPPES; status is on the state search - Practice location
- 13690 E 14TH St Ste 230, San Leandro, CA 94578
- Phone
- (510) 614-9200
- Enumerated
- Oct 24, 2018
- Record last updated
- Oct 24, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 3,376 in California → Look up another NPI →
Also registered at 13690 E 14TH St Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paige Anderson, PA-CMedical Physician Assistant1285116020
Verify Brianne Kathleen Cassidy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average medical physician assistant in 2024
20 Medicare Part D claims for 12 beneficiaries, against an average of 1,148 among the 23,801 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.
Brianne Kathleen Cassidy among 3,376 medical physician assistant records in California
Brianne Kathleen Cassidy 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 2018, is newer than 71% of them.
- NPI issued2018 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2018 · 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.
All 3,376 in California → Every provider in San Leandro → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Paige Anderson, PA-CSan Leandro, CA 945781285116020
- Jude Fox, PAAshland, CA 945781548415508
- Christine Le, PA-CSan Leandro, CA 945781104605302
- Ada Lien, PA-C, MPHSan Leandro, CA 945781174053573
- Gee Tsou, PA-CSan Leandro, CA 945781316147580
- Jennifer Bahm, PA-CSan Leandro, CA 945771528124716
- Lisa Morales, PASaint Helena, CA 945741184111551
- Mary Walter, PASaint Helena, CA 945741770890345
Common questions
What is Brianne Kathleen Cassidy's NPI number?
Brianne Kathleen Cassidy's National Provider Identifier (NPI) is 1982171377, issued on Oct 24, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Brianne Kathleen Cassidy located?
The NPPES record lists a practice address at 13690 E 14TH St Ste 230, San Leandro, CA, 94578. Phone: (510) 614-9200. Providers update this record themselves, so call before visiting.
How can I verify Brianne Kathleen Cassidy's license?
NPPES lists California license number 55848, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Brianne Kathleen Cassidy prescribe under Medicare Part D?
In 2024, Brianne Kathleen Cassidy had 20 Medicare Part D claims for 12 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.