NPPES file of Aug 9, 2026

Hyun Ok Kim, DDS

General Practice Dentistry · Orange, CA

Hyun Ok Kim, DDS is a general practice dentistry with a practice address in Orange, California, and NPI 1144374158, issued on Jan 23, 2007. Check the license (California 40452, 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
1144374158
Name
Hyun Ok Kim
Credential
DDS
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
40452 CA
Self-reported in NPPES; status is on the state search
Practice location
2606 E Chapman Ave, Orange, CA 92869
Phone
(714) 639-6181
Enumerated
Jan 23, 2007
Record last updated
Feb 13, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(714) 639-6182
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 2606 E Chapman Ave

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

  1. Helena Czochanski, DDSDentist1871484576
  2. John Czochanski, DDSGeneral Practice Dentistry1124158563
  3. Kenneth Khoo, D.D.S.General Practice Dentistry1346423357
  4. Martin NguyenDentist1962048033

Verify Hyun Ok Kim 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 40452
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5% more Medicare Part D claims than the average general practice dentistry in 2024

87 Medicare Part D claims for 36 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.

  1. Hyun Kim87
  2. Specialty average83

Most prescribed

  1. Amoxicillin23 claims
  2. Ibuprofen17 claims
  3. Chlorhexidine Gluconate16 claims
  4. Dexamethasone12 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.

Hyun Ok Kim among 17,852 general practice dentistry records in California

Hyun Ok Kim, 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 2007, is newer than 29% of them.

  • NPI issued2007 · 29% of these records are older, 40% 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 updated2013 · 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).

107 general practice dentistry records list a practice address in Orange

They are 107 of the 13,245 NPPES records with a practice address in Orange, and 17,852 general practice dentistry records in California.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Andrea Bernhardt, DDSOrange, CA 928691255814364
  2. John Czochanski, DDSOrange, CA 928691124158563
  3. Kenneth Khoo, D.D.S.Orange, CA 928691346423357
  4. Byron Kim, DDSOrange, CA 928691568802411
  5. Eileen LeeOrange, CA 928691689215998
  6. Daniel Marcus, DDSOrange, CA 928691740238492
  7. Conor PerrinOrange, CA 928691780253401
  8. Ann Tran, DDSOrange, CA 928691720099930

Common questions

What is Hyun Ok Kim, DDS's NPI number?

Hyun Ok Kim, DDS's National Provider Identifier (NPI) is 1144374158, issued on Jan 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hyun Ok Kim, DDS located?

The NPPES record lists a practice address at 2606 E Chapman Ave, Orange, CA, 92869. Phone: (714) 639-6181. Providers update this record themselves, so call before visiting.

How can I verify Hyun Ok Kim, DDS's license?

NPPES lists California license number 40452, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hyun Ok Kim, DDS prescribe under Medicare Part D?

In 2024, Hyun Ok Kim, DDS had 87 Medicare Part D claims for 36 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.