NPPES file of Aug 9, 2026

William L. Chen, DDS

Orthodontics and Dentofacial Orthopedics Dentistry · Tustin, CA

William L. Chen, DDS is an orthodontics and dentofacial orthopedics dentistry with a practice address in Tustin, California, and NPI 1427155779, issued on Sep 20, 2006. Check the license (California 51049, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1427155779
Name
William L. Chen
Credential
DDS
Primary taxonomy
Orthodontics and Dentofacial Orthopedics Dentistry 1223X0400X
License number
51049 CA
Self-reported in NPPES; status is on the state search
Practice location
3061 Edinger Ave, Tustin, CA 92780
Phone
(949) 654-2200
Enumerated
Sep 20, 2006
Record last updated
Jan 17, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(949) 654-2210
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify William L. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 51049
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Industry payments in 2024: $102.88

2 payments; by number, the most common kind was food and beverage; the largest payer was Sonendo Inc. The 7,622 providers of this specialty with any payment received $1,641.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Chen$102.88
  2. Specialty average$1,641.73

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

William L. Chen among 1,881 orthodontics and dentofacial orthopedics dentistry records in California

William L. Chen, DDS is one of 1,881 orthodontics and dentofacial orthopedics dentistry 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 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 78% 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 updated2017 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223X0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthodontics and Dentofacial Orthopedics Dentistry providers in California

There are 1,881 orthodontics and dentofacial orthopedics dentistry records in California.

The 8 orthodontics and dentofacial orthopedics dentistry records with the nearest ZIP codes

  1. Ezz Azzeh, DDS, CERT., DMSCTustin, CA 927801669670931
  2. Douglas Baum, DDS, MSDTustin, CA 927801821211715
  3. Signe Belden, DDSTustin, CA 927801285781039
  4. William DennyTustin, CA 927801811102965
  5. Leroy Lance, DDS MSTustin, CA 927801568686475
  6. James Zahrowski, DMD MSTustin, CA 927801750404851
  7. Dell Aldrich, D.D.S.-M.S.Tustin, CA 927821760666705
  8. Kashif Ismail, D.M.D.Tustin, CA 927821235324880

Common questions

What is William L. Chen, DDS's NPI number?

William L. Chen, DDS's National Provider Identifier (NPI) is 1427155779, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William L. Chen, DDS located?

The NPPES record lists a practice address at 3061 Edinger Ave, Tustin, CA, 92780. Phone: (949) 654-2200. Providers update this record themselves, so call before visiting.

How can I verify William L. Chen, DDS's license?

NPPES lists California license number 51049, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.