Ying-Yi Chang, D.D.S., M.S.
Periodontics · San Gabriel, CA
Ying-Yi Chang, D.D.S., M.S. is a periodontics with a practice address in San Gabriel, California, and NPI 1659406007, issued on Feb 23, 2007. Check the license (California 45835, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ying-Yi Chang
- Credential
- D.D.S., M.S.
- Primary taxonomy
- Periodontics 1223P0300X
- License number
- 45835 CA
Self-reported in NPPES; status is on the state search - Practice location
- 288 S San Gabriel Blvd Ste 205, San Gabriel, CA 91776
- Phone
- (626) 285-6968
- Enumerated
- Feb 23, 2007
- Record last updated
- May 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest periodontics records → All 929 in California → Look up another NPI →
Verify Ying-Yi Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 45835Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average periodontics in 2024
70 Medicare Part D claims for 27 beneficiaries, against an average of 277 among the 4,191 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin29 claims
- Chlorhexidine Gluconate20 claims
- Ibuprofen17 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.
Ying-Yi Chang among 929 periodontics records in California
Ying-Yi Chang, D.D.S., M.S. is one of 929 periodontics records with a practice address in California. 69% 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 29% of them.
- NPI issued2007 · 29% of these records are older, 40% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2008 · 78% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Periodontics providers in California
There are 929 periodontics records in California.
All 929 in California → Every provider in San Gabriel → Periodontics nationwide →
The 8 periodontics records with the nearest ZIP codes
- Duke Huang, DMDSan Gabriel, CA 917761902058274
- Hwurang Lin, DDSSan Gabriel, CA 917761396766960
- Chris Lin, D.D.S.San Gabriel, CA 917761184717910
- Ahmed Farid, DMDSan Dimas, CA 917731073958286
- Mohamed Kayali, D.D.S.San Dimas, CA 917731477612406
- Andrea ChienTemple City, CA 917801093507071
- Frank Sy, D.M.D.Rosemead, CA 917701689982555
- Shadie Azar, D.M.D.Upland, CA 917861144600289
Common questions
What is Ying-Yi Chang, D.D.S., M.S.'s NPI number?
Ying-Yi Chang, D.D.S., M.S.'s National Provider Identifier (NPI) is 1659406007, issued on Feb 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ying-Yi Chang, D.D.S., M.S. located?
The NPPES record lists a practice address at 288 S San Gabriel Blvd Ste 205, San Gabriel, CA, 91776. Phone: (626) 285-6968. Providers update this record themselves, so call before visiting.
How can I verify Ying-Yi Chang, D.D.S., M.S.'s license?
NPPES lists California license number 45835, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ying-Yi Chang, D.D.S., M.S. prescribe under Medicare Part D?
In 2024, Ying-Yi Chang, D.D.S., M.S. had 70 Medicare Part D claims for 27 beneficiaries; the average among periodontics prescribers was 277. 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.