Ashley Herrera, RPH
Pharmacist · San Leandro, CA
Ashley Herrera, RPH is a pharmacist with a practice address in San Leandro, California, and NPI 1972199958, issued on Dec 14, 2020. Check the license (California 84002, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Herrera
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 84002 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1355 Macarthur Blvd, San Leandro, CA 94577
- Phone
- (510) 352-3677
- Enumerated
- Dec 14, 2020
- Record last updated
- Dec 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Also registered at 1355 Macarthur Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ashley Herrera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 84002Check 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, 96% of the cost of the top drugs
161 Medicare Part D claims for 149 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 96% 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.
- Arexvy74 claims
- Shingrix50 claims
- Boostrix Tdap18 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.
Ashley Herrera among 32,533 pharmacist records in California
Ashley Herrera, 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 2020, is newer than 73% of them.
- NPI issued2020 · 73% of these records are older, 21% 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 updated2020 · 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).
132 pharmacist records list a practice address in San Leandro
They are 132 of the 4,976 NPPES records with a practice address in San Leandro, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in San Leandro → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Adam Althoff, PHARM DSan Lenadro, CA 945771518010123
- Brian Au, PHARM DSan Leandro, CA 945771497803670
- Jungsuk Byun, PHARMSan Leandro, CA 945771174675029
- Linda Chang, PHARM DSan Leandro, CA 945771629126826
- Vijay Dave, PHARMSan Leandro, CA 945771043388440
- Lisa Fung, PHARM DSan Leandro, CA 945771003902719
- Carolyn Kong, PHARM.D.San Leandro, CA 945771134297252
- Sean McElligott, PHARM.D.San Leandro, CA 945771407955024
Common questions
What is Ashley Herrera, RPH's NPI number?
Ashley Herrera, RPH's National Provider Identifier (NPI) is 1972199958, issued on Dec 14, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Herrera, RPH located?
The NPPES record lists a practice address at 1355 Macarthur Blvd, San Leandro, CA, 94577. Phone: (510) 352-3677. Providers update this record themselves, so call before visiting.
How can I verify Ashley Herrera, RPH's license?
NPPES lists California license number 84002, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Herrera, RPH prescribe under Medicare Part D?
In 2024, Ashley Herrera, RPH had 161 Medicare Part D claims for 149 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.