Thong Sy Dong
Pharmacist · Rancho Cucamonga, CA
Thong Sy Dong is a pharmacist with a practice address in Rancho Cucamonga, California, and NPI 1306166640, issued on Jun 9, 2010. Check the license (California RPH58167, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thong Sy Dong
- Primary taxonomy
- Pharmacist 183500000X
- License number
- RPH58167 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9650 Baseline RD, Rancho Cucamonga, CA 91701
- Phone
- (909) 987-3518
- Enumerated
- Jun 9, 2010
- Record last updated
- Jun 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (909) 466-4689
- Entity
- Type 1 · individual
Also registered at 9650 Baseline RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bertha GuerreroPharmacy Technician1437725132
- Jennie KwunPharmacist1740500834
- Mike Navarro, CPHTPharmacy Technician1104494053
- Alice ParkPharmacist1235747197
- Han ParkPharmacist1588177836
- Michelle Pham, RPHPharmacist1558860460
Verify Thong Sy Dong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license RPH58167Check 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
101 Medicare Part D claims for 84 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.
- Shingrix31 claims
- Abrysvo28 claims
- Arexvy22 claims
- Boostrix Tdap17 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.
134 pharmacist records list a practice address in Rancho Cucamonga
They are 134 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 32,533 pharmacist records in California.
All 134 in Rancho Cucamonga → All 32,533 in California → Every provider in Rancho Cucamonga →
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 Thong Sy Dong's NPI number?
Thong Sy Dong's National Provider Identifier (NPI) is 1306166640, issued on Jun 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Thong Sy Dong located?
The NPPES record lists a practice address at 9650 Baseline RD, Rancho Cucamonga, CA, 91701. Phone: (909) 987-3518. Providers update this record themselves, so call before visiting.
How can I verify Thong Sy Dong's license?
NPPES lists California license number RPH58167, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thong Sy Dong prescribe under Medicare Part D?
In 2024, Thong Sy Dong had 101 Medicare Part D claims for 84 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.