Shelby Ann O'Hara
Physician Assistant · San Mateo, CA
Shelby Ann O'Hara is a physician assistant with a practice address in San Mateo, California, and NPI 1427762160, issued on Jan 9, 2023. Check the license (California PA63390, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shelby Ann O'Hara
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA63390 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 S San Mateo Dr Ste 424, San Mateo, CA 94401
- Phone
- (650) 262-4262
- Enumerated
- Jan 9, 2023
- Record last updated
- Oct 2, 2023
- Fax
- (650) 262-5862
- Medicare enrollment
- Enrolled (PECOS I20240109001919); accepts Medicare assignment
- Medical or professional school
- Pacific University - College Of Optometry, 2023
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Shelby Ann O'Hara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA63390Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average physician assistant in 2024
165 Medicare Part D claims for 75 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 67 claims were for opioids.
Most prescribed
- Meloxicam71 claims
- Hydrocodone-Acetaminophen44 claims
- Oxycodone Hcl13 claims
- Diclofenac Sodium12 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shelby Ann O'Hara among 14,451 physician assistant records in California
Shelby Ann O'Hara 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 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).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Mateo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Caitlin De CastroSan Mateo, CA 944011265219075
- Rebecca ForrestSan Mateo, CA 944011306293048
- Laurel King, PASan Mateo, CA 944011508954132
- Samantha Oliveira, PA-C, MS, MPHSan Mateo, CA 944011326449893
- Jose Perez, PHYSICIAN ASSISTANTSan Mateo, CA 944011336294651
- Elizabeth Quadraccia, PASan Mateo, CA 944011811936800
- Denise RosSan Mateo, CA 944011093351751
- Matthew Shaw, PA-CSan Mateo, CA 944011730453390
Common questions
What is Shelby Ann O'Hara's NPI number?
Shelby Ann O'Hara's National Provider Identifier (NPI) is 1427762160, issued on Jan 9, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Shelby Ann O'Hara located?
The NPPES record lists a practice address at 100 S San Mateo Dr Ste 424, San Mateo, CA, 94401. Phone: (650) 262-4262. Providers update this record themselves, so call before visiting.
How can I verify Shelby Ann O'Hara's license?
NPPES lists California license number PA63390, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Shelby Ann O'Hara prescribe under Medicare Part D?
In 2024, Shelby Ann O'Hara had 165 Medicare Part D claims for 75 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.