Edward Chiwing Leong, D.D.S.
Dentist · Upland, CA
Edward Chiwing Leong, D.D.S. is a dentist with a practice address in Upland, California, and NPI 1891995320, issued on Jul 23, 2007. Check the license (California 46199, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Edward Chiwing Leong
- Credential
- D.D.S.
- Primary taxonomy
- Dentist 122300000X
- License number
- 46199 CA
Self-reported in NPPES; status is on the state search - Practice location
- 76 E Foothill Blvd, Upland, CA 91786
- Phone
- (909) 946-5656
- Enumerated
- Jul 23, 2007
- Record last updated
- Jul 23, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Also registered at 76 E Foothill Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Leong, D.D.S.Dentist1700086238
Verify Edward Chiwing Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 46199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average dentist in 2024
71 Medicare Part D claims for 31 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin26 claims
- Ibuprofen18 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.
Edward Chiwing Leong among 14,729 dentist records in California
Edward Chiwing Leong, D.D.S. is one of 14,729 dentist records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 58% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 dentist records list a practice address in Upland
They are 48 of the 1,846 NPPES records with a practice address in Upland, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Upland → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Maher Barsoum, DENTISTUpland, CA 917861063582690
- Jose Castro, D.D.S.Upland, CA 917861225113392
- Robin Chapman, D.D.S.Upland, CA 917861699858779
- Jaime Gochez, DDSUpland, CA 917861326151218
- Vahan Grigoryan, DDSUpland, CA 917861235211541
- Robert Kamansky, D.D.S.Upland, CA 917861558403329
- Binh Ngo, D.M.D.Upland, CA 917861770585424
- Sherwin Simons, DDSUpland, CA 917861912033325
Common questions
What is Edward Chiwing Leong, D.D.S.'s NPI number?
Edward Chiwing Leong, D.D.S.'s National Provider Identifier (NPI) is 1891995320, issued on Jul 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Edward Chiwing Leong, D.D.S. located?
The NPPES record lists a practice address at 76 E Foothill Blvd, Upland, CA, 91786. Phone: (909) 946-5656. Providers update this record themselves, so call before visiting.
How can I verify Edward Chiwing Leong, D.D.S.'s license?
NPPES lists California license number 46199, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Edward Chiwing Leong, D.D.S. prescribe under Medicare Part D?
In 2024, Edward Chiwing Leong, D.D.S. had 71 Medicare Part D claims for 31 beneficiaries; the average among dentist prescribers was 86. 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.