Kathleen Anne O'Neill, RPH
Pharmacist · Napa, CA
Kathleen Anne O'Neill, RPH is a pharmacist with a practice address in Napa, California, and NPI 1699076505, issued on Nov 9, 2010. Check the license (California 43322, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kathleen Anne O'Neill
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 43322 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3375 Jefferson St, Napa, CA 94558
- Phone
- (707) 225-3040
- Enumerated
- Nov 9, 2010
- Record last updated
- Nov 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (707) 225-3042
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 3375 Jefferson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katrine Lisette Cayabyab, RPHPharmacist1790085116
- Boaz ChungPharmacist1790403392
- Nirali DesaiPharmacist1982209151
- Janet LeePharmacist1679046312
- Emiliano LlavePharmacist1811610603
Verify Kathleen Anne O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 43322Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 95% of the cost of the top drugs
83 Medicare Part D claims for 80 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 99% of claims.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Arexvy38 claims
- Shingrix27 claims
- Boostrix Tdap12 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.
Kathleen Anne O'Neill among 32,533 pharmacist records in California
Kathleen Anne O'Neill, RPH is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 12% of them.
- NPI issued2010 · 12% of these records are older, 82% newer
- In a Medicare fileYes · 15% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2010 · 76% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
64 pharmacist records list a practice address in Napa
They are 64 of the 3,583 NPPES records with a practice address in Napa, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Napa → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Katrine Lisette Cayabyab, RPHNapa, CA 945581790085116
- Hilarie Chamberland, PHARM.D.Napa, CA 945581801940606
- Ashley GaanNapa, CA 945581578934824
- Laleh HamadaniNapa, CA 945581467877951
- Viktoria HeathNapa, CA 945581568870673
- Pamela Jesse, PHARMDNapa, CA 945581417350893
- Emily Pearse, PHARMDNapa, CA 945581336368315
- Irene Quiroz, PHARM.D.Napa, CA 945581942609946
Common questions
What is Kathleen Anne O'Neill, RPH's NPI number?
Kathleen Anne O'Neill, RPH's National Provider Identifier (NPI) is 1699076505, issued on Nov 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen Anne O'Neill, RPH located?
The NPPES record lists a practice address at 3375 Jefferson St, Napa, CA, 94558. Phone: (707) 225-3040. Providers update this record themselves, so call before visiting.
How can I verify Kathleen Anne O'Neill, RPH's license?
NPPES lists California license number 43322, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kathleen Anne O'Neill, RPH prescribe under Medicare Part D?
In 2024, Kathleen Anne O'Neill, RPH had 83 Medicare Part D claims for 80 beneficiaries; the average among pharmacist prescribers was 119. 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.