NPPES file of Aug 9, 2026

John Hsieh, DDS

General Practice Dentistry · Rancho Cucamonga, CA

John Hsieh, DDS is a general practice dentistry with a practice address in Rancho Cucamonga, California, and NPI 1407962913, issued on Aug 21, 2006. Check the license (California 49759, 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
1407962913
Name
John Hsieh
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
49759 CA
Self-reported in NPPES; status is on the state search
Practice location
7369 Day Creek Blvd, Rancho Cucamonga, CA 91739
Phone
(909) 646-7902
Enumerated
Aug 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(909) 646-7903
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 John Hsieh 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 49759
    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
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81% more Medicare Part D claims than the average general practice dentistry in 2024

150 Medicare Part D claims for 71 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. John Hsieh150
  2. Specialty average83

Most prescribed

  1. Chlorhexidine Gluconate45 claims
  2. Amoxicillin41 claims
  3. Ibuprofen28 claims
  4. Clindamycin Hcl26 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.

John Hsieh among 17,852 general practice dentistry records in California

John Hsieh, DDS 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).

77 general practice dentistry records list a practice address in Rancho Cucamonga

They are 77 of the 4,579 NPPES records with a practice address in Rancho Cucamonga, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Garth Brown, DDSRancho Cucamonga, CA 917391275076119
  2. Dannelle Carpio, D.D.S.Rancho Cucamonga, CA 917391356532915
  3. Daniel Chavez, DDSRancho Cucamonga, CA 917391851447296
  4. En Chen, D.D.SRancho Cucamonga, CA 917391780090589
  5. Luzviminda Dayrit, DDSRancho Cucamonga, CA 917391699822767
  6. Lila Kakar, D.D.S.Rancho Cucamonga, CA 917391578002291
  7. Dianne Le, DDSRancho Cucamonga, CA 917391144418567
  8. Gerald Lopez, D.D.S.Rancho Cucamonga, CA 917391225134216

Common questions

What is John Hsieh, DDS's NPI number?

John Hsieh, DDS's National Provider Identifier (NPI) is 1407962913, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Hsieh, DDS located?

The NPPES record lists a practice address at 7369 Day Creek Blvd, Rancho Cucamonga, CA, 91739. Phone: (909) 646-7902. Providers update this record themselves, so call before visiting.

How can I verify John Hsieh, DDS's license?

NPPES lists California license number 49759, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Hsieh, DDS prescribe under Medicare Part D?

In 2024, John Hsieh, DDS had 150 Medicare Part D claims for 71 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.