John Han, PHARM.D.
Pharmacist · San Marcos, CA
John Han, PHARM.D. is a pharmacist with a practice address in San Marcos, California, and NPI 1770980500, issued on Nov 21, 2014. Check the license (California 64847, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Han
- Credential
- PHARM.D.
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 64847 CA
Self-reported in NPPES; status is on the state search - Practice location
- 725 Center Dr, San Marcos, CA 92069
- Phone
- (760) 871-6868
- Enumerated
- Nov 21, 2014
- Record last updated
- Nov 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (760) 872-6869
- Entity
- Type 1 · individual
Also registered at 725 Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Dollbaum, PHARM.D.Pharmacist1023566932
- Valerie Frimtzis, O.D.Optometrist1457559429
- Peni Hoang, PHARM.D.Pharmacist1174899843
- Andrew KaewtavornPharmacist1841968385
- Christine Lucas, PHARMDPharmacist1427549633
- Tram NguyenPharmacist1831668250
Verify John Han in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 64847Check 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
141 Medicare Part D claims for 124 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% 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.
- Abrysvo73 claims
- Shingrix40 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.
96 pharmacist records list a practice address in San Marcos
They are 96 of the 1,985 NPPES records with a practice address in San Marcos, and 32,533 pharmacist records in California.
All 96 in San Marcos → All 32,533 in California → Every provider in San Marcos →
Other pharmacist records in California
- Caroline A-Haja, PHARM.D.San Pedro, CA1851664361
- Gayatri AachiLivermore, CA1235660754
- Adrian Karlos Aala, PHARMD, RPHHayward, CA1023955499
- Mahshid Aalam, PHARMDLos Angeles, CA1659086155
- Jaleh AaliiveliSan Ramon, CA1336629963
- Cassi Aarvig, RPHTracy, CA1023679941
- Meara Michi AbadOrange, CA1750181178
- Nader Abadier, RPHFontana, CA1326255647
- Samia Abadier, RPHFontana, CA1548742836
- Sandy Abadir, RPHChino Hills, CA1811644412
Common questions
What is John Han, PHARM.D.'s NPI number?
John Han, PHARM.D.'s National Provider Identifier (NPI) is 1770980500, issued on Nov 21, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Han, PHARM.D. located?
The NPPES record lists a practice address at 725 Center Dr, San Marcos, CA, 92069. Phone: (760) 871-6868. Providers update this record themselves, so call before visiting.
How can I verify John Han, PHARM.D.'s license?
NPPES lists California license number 64847, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does John Han, PHARM.D. prescribe under Medicare Part D?
In 2024, John Han, PHARM.D. had 141 Medicare Part D claims for 124 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.