Christopher Tjon
Pharmacist · Fontana, CA
Christopher Tjon is a pharmacist with a practice address in Fontana, California, and NPI 1497013817, issued on Apr 24, 2012. Check the license (California 66148, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Tjon
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 66148 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17284 Slover Ave Ste 204, Fontana, CA 92337
- Phone
- (909) 609-3326
- Enumerated
- Apr 24, 2012
- Record last updated
- Apr 24, 2012 (not updated in 14 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 17284 Slover Ave Ste 204
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Bae, PHARMDAmbulatory Care Pharmacist1013402098
- Lucia Basilio, PHARMDPharmacist1104605401
- Carrie Bitterlich, PHARM.D.Pharmacist1174944565
- Kristine Esguerra, PHARMDPharmacist1639845431
- Davina Garls, PHARM.D.Pharmacist1477801553
- Andrea Lee, PHARMDPharmacist1225812175
Verify Christopher Tjon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 66148Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average pharmacist in 2024
19 Medicare Part D claims, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 68% of 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.
Christopher Tjon among 32,533 pharmacist records in California
Christopher Tjon 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 2012, is newer than 28% of them.
- NPI issued2012 · 28% of these records are older, 68% 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 updated2012 · 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).
227 pharmacist records list a practice address in Fontana
They are 227 of the 3,012 NPPES records with a practice address in Fontana, and 32,533 pharmacist records in California.
All 32,533 in California → Every provider in Fontana → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Carol Crawford, PHARM.D.Fontana, CA 923371184714263
- Sophia Ho, PHARM.D.Fontana, CA 923371679734594
- Rebecca Hollero, PHARMD.Fontana, CA 923371730313065
- Herman Ip, RPHFontana, CA 923371689877045
- Nicole Kloeppel, PHARM.D.Fontana, CA 923371447416649
- Kimberly Messenger, PHARM.D.Fontana, CA 923371225291321
- Thu Phung, PHARM.DFontana, CA 923371487961207
- Vandana Powers, PHARM.D.Fontana, CA 923371780747618
Common questions
What is Christopher Tjon's NPI number?
Christopher Tjon's National Provider Identifier (NPI) is 1497013817, issued on Apr 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Tjon located?
The NPPES record lists a practice address at 17284 Slover Ave Ste 204, Fontana, CA, 92337. Phone: (909) 609-3326. Providers update this record themselves, so call before visiting.
How can I verify Christopher Tjon's license?
NPPES lists California license number 66148, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Tjon prescribe under Medicare Part D?
In 2024, Christopher Tjon had 19 Medicare Part D claims; 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.