NPPES file of Aug 9, 2026

Pai-Jen Boren Chen, D.D.S.

General Practice Dentistry · South Pasadena, CA

Pai-Jen Boren Chen, D.D.S. is a general practice dentistry with a practice address in South Pasadena, California, and NPI 1114090966, issued on Nov 16, 2006. Check the license (California 45437, 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
1114090966
Name
Pai-Jen Boren Chen
Credential
D.D.S.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
45437 CA
Self-reported in NPPES; status is on the state search
Practice location
1414 Fair Oaks Ave Ste 9, South Pasadena, CA 91030
Phone
(626) 441-0899
Enumerated
Nov 16, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(626) 441-0885
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 Pai-Jen Boren 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 45437
    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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65% fewer Medicare Part D claims than the average general practice dentistry in 2024

29 Medicare Part D claims for 20 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Pai-Jen Chen29
  2. Specialty average83

Most prescribed

  1. Amoxicillin19 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.

Pai-Jen Boren Chen among 17,852 general practice dentistry records in California

Pai-Jen Boren Chen, D.D.S. 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 71% 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 updated2007 · 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).

24 general practice dentistry records list a practice address in South Pasadena

They are 24 of the 1,081 NPPES records with a practice address in South Pasadena, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Jacqueline Aguillon, 46720 DDSSouth Pasadena, CA 910301578680047
  2. Mary Chess Abelson, D.D.S.South Pasadena, CA 910301942383831
  3. Johnston Chu, DDSSouth Pasadena, CA 910301982734315
  4. John Chu, D.M.D.South Pasadena, CA 910301295858173
  5. Richard Fuentes, DDSSouth Pasadena, CA 910301245362102
  6. James Hodge, D.D.S.South Pasadena, CA 910301114947868
  7. Vincent Katow, DDSSouth Pasadena, CA 910301942408489
  8. Susan Leung, DDSSouth Pasadena, CA 910301922041433

Common questions

What is Pai-Jen Boren Chen, D.D.S.'s NPI number?

Pai-Jen Boren Chen, D.D.S.'s National Provider Identifier (NPI) is 1114090966, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Pai-Jen Boren Chen, D.D.S. located?

The NPPES record lists a practice address at 1414 Fair Oaks Ave Ste 9, South Pasadena, CA, 91030. Phone: (626) 441-0899. Providers update this record themselves, so call before visiting.

How can I verify Pai-Jen Boren Chen, D.D.S.'s license?

NPPES lists California license number 45437, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Pai-Jen Boren Chen, D.D.S. prescribe under Medicare Part D?

In 2024, Pai-Jen Boren Chen, D.D.S. had 29 Medicare Part D claims for 20 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.