NPPES file of Aug 9, 2026

John Yearncharn Chung, DMD

General Practice Dentistry · Garden Grove, CA

John Yearncharn Chung, DMD is a general practice dentistry with a practice address in Garden Grove, California, and NPI 1609421452, issued on Aug 8, 2019. Check the license (California 101596, 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
1609421452
Name
John Yearncharn Chung
Credential
DMD
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
101596 CA
Self-reported in NPPES; status is on the state search
Practice location
8754 Garden Grove Blvd, Garden Grove, CA 92844
Phone
(714) 539-1200
Enumerated
Aug 8, 2019
Record last updated
Aug 8, 2019 (not updated in 7 years: call before relying on the address or phone)
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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Also registered at 8754 Garden Grove Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Danny Do, DDSGeneral Practice Dentistry1457074171
  2. Young Lim, D.D.SGeneral Practice Dentistry1952546228

Verify John Yearncharn Chung 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 101596
    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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2% more Medicare Part D claims than the average general practice dentistry in 2024

85 Medicare Part D claims for 37 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. John Chung85
  2. Specialty average83

Most prescribed

  1. Amoxicillin34 claims
  2. Ibuprofen24 claims
  3. Chlorhexidine Gluconate15 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 Yearncharn Chung among 17,852 general practice dentistry records in California

John Yearncharn Chung, 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).

86 general practice dentistry records list a practice address in Garden Grove

They are 86 of the 4,572 NPPES records with a practice address in Garden Grove, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Rebecca Chung, DDSGarden Grove, CA 928441740408681
  2. Christopher Dinh, D.D.SGarden Grove, CA 928441699863407
  3. Danny Do, DDSGarden Grove, CA 928441457074171
  4. Ukjae Jung, D.D.S.Garden Grove, CA 928441326351966
  5. Sandy Kim, DDSGarden Grove, CA 928441538287503
  6. In Kim, D.D.S.Garden Grove, CA 928441184830309
  7. Jongin Lee, DDSGarden Grove, CA 928441700039872
  8. Young Lim, D.D.SGarden Grove, CA 928441952546228

Common questions

What is John Yearncharn Chung, DMD's NPI number?

John Yearncharn Chung, DMD's National Provider Identifier (NPI) is 1609421452, issued on Aug 8, 2019. An NPI identifies a provider in billing; it is not a license.

Where is John Yearncharn Chung, DMD located?

The NPPES record lists a practice address at 8754 Garden Grove Blvd, Garden Grove, CA, 92844. Phone: (714) 539-1200. Providers update this record themselves, so call before visiting.

How can I verify John Yearncharn Chung, DMD's license?

NPPES lists California license number 101596, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does John Yearncharn Chung, DMD prescribe under Medicare Part D?

In 2024, John Yearncharn Chung, DMD had 85 Medicare Part D claims for 37 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.