Willis Wei Hsieh, DMD
General Practice Dentistry · Hacienda Heights, CA
Willis Wei Hsieh, DMD is a general practice dentistry with a practice address in Hacienda Heights, California, and NPI 1073165981, issued on Jul 11, 2019. Check the license (California 103975, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Willis Wei Hsieh
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 103975 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 S Hacienda Blvd Ste A, Hacienda Heights, CA 91745
- Phone
- (626) 336-2588
- Enumerated
- Jul 11, 2019
- Record last updated
- Jul 11, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (626) 336-3337
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify Willis Wei Hsieh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 103975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average general practice dentistry in 2024
27 Medicare Part D claims for 16 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate13 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.
Industry payments in 2024: $25.00
1 payment: consulting fee; the largest payer was Align Technology, Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Willis Wei Hsieh among 17,852 general practice dentistry records in California
Willis Wei Hsieh, DMD is one of 17,852 general practice dentistry records with a practice address in California. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2019 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
30 general practice dentistry records list a practice address in Hacienda Heights
They are 30 of the 597 NPPES records with a practice address in Hacienda Heights, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Hacienda Heights → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Marian Afurong, DMDHacienda Heights, CA 917451720122351
- Maria Balce, DDSHacienda Heights, CA 917451447299029
- Paul Chan, DDSHacienda Heights, CA 917451073602983
- Jung-Hsiang Chen, D.D.SHacienda Heights, CA 917451346313764
- Steven Chou, D.D.S.Hacienda Heights, CA 917451194850222
- Sam Chui, DDSHacienda Heights, CA 917451346240538
- John Dagostino, DDSHacienda Hieghts, CA 917451407912181
- Chih-Hsin Hsieh, DDSHacienda Heights, CA 917451669489373
Common questions
What is Willis Wei Hsieh, DMD's NPI number?
Willis Wei Hsieh, DMD's National Provider Identifier (NPI) is 1073165981, issued on Jul 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Willis Wei Hsieh, DMD located?
The NPPES record lists a practice address at 2020 S Hacienda Blvd Ste A, Hacienda Heights, CA, 91745. Phone: (626) 336-2588. Providers update this record themselves, so call before visiting.
How can I verify Willis Wei Hsieh, DMD's license?
NPPES lists California license number 103975, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Willis Wei Hsieh, DMD prescribe under Medicare Part D?
In 2024, Willis Wei Hsieh, DMD had 27 Medicare Part D claims for 16 beneficiaries; the average among general practice dentistry prescribers was 83. 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.