Thong H. Do, RPH
Pharmacist · Fontana, CA
Thong H. Do, RPH is a pharmacist with a practice address in Fontana, California, and NPI 1922886969, issued on Sep 20, 2023. Check the license (California 69109, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thong H. Do
- Credential
- RPH
- Primary taxonomy
- Pharmacist 183500000X
- License number
- 69109 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9788 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-1853
- Enumerated
- Sep 20, 2023
- Record last updated
- Oct 6, 2023
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 32,533 in California → Look up another NPI →
Verify Thong H. Do in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 69109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
85% fewer Medicare Part D claims than the average pharmacist in 2024
18 Medicare Part D claims for 12 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Naloxone Hcl18 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.
Thong H. Do among 32,533 pharmacist records in California
Thong H. Do, 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 2023, is newer than 88% of them.
- NPI issued2023 · 88% of these records are older, 8% 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 updated2023 · 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
- Gabriel Alvarez, PHARM.D.Fontana, CA 923351689774440
- Julie Chae, R.PH.Fontana, CA 923351477644102
- Francis Chan, PHARM.D.Fontana, CA 923351114028339
- Patrick Chang, PHARM DFontana, CA 923351538250238
- Jerry Cole, RPHFontana, CA 923351437178365
- Phyllip Dedden, PHARM.D.Fontana, CA 923351780775478
- Therese Hershey, PHARM.D.Fontana, CA 923351730280868
- David Kim, PHARMDFontana, CA 923351720170640
Common questions
What is Thong H. Do, RPH's NPI number?
Thong H. Do, RPH's National Provider Identifier (NPI) is 1922886969, issued on Sep 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Thong H. Do, RPH located?
The NPPES record lists a practice address at 9788 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-1853. Providers update this record themselves, so call before visiting.
How can I verify Thong H. Do, RPH's license?
NPPES lists California license number 69109, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thong H. Do, RPH prescribe under Medicare Part D?
In 2024, Thong H. Do, RPH had 18 Medicare Part D claims for 12 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.