Hee Yon Koh, DMD
Dentist · Mission Viejo, CA
Hee Yon Koh, DMD is a dentist with a practice address in Mission Viejo, California, and NPI 1427255090, issued on Jun 28, 2007. Check the license (California 60415, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hee Yon Koh
- Credential
- DMD
- Primary taxonomy
- Dentist 122300000X
- License number
- 60415 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25100 Marguerite Pkwy Ste A, Mission Viejo, CA 92692
- Phone
- (949) 768-3801
- Enumerated
- Jun 28, 2007
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (949) 768-7701
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Verify Hee Yon Koh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 60415Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average dentist in 2024
34 Medicare Part D claims for 28 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin31 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.
Industry payments in 2024: $116.62
2 payments; by number, the most common kind was entertainment; the largest payer was Keystone Dental Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Hee Yon Koh among 14,729 dentist records in California
Hee Yon Koh, DMD is one of 14,729 dentist 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 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 58% 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 updated2021 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
48 dentist records list a practice address in Mission Viejo
They are 48 of the 2,156 NPPES records with a practice address in Mission Viejo, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Mission Viejo → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Carroll Bohne, DDSMission Viejo, CA 926921871626028
- Negin Dehdar Nasab, DMDMission Viejo, CA 926921710533401
- Philip Farinella, DDSMission Viejo, CA 926921780767160
- Farshin Farokhian, DDSMission Viejo, CA 926921871705509
- Shaghayegh Ghobadi, DMDMission Viejo, CA 926921588542740
- Kishen Godhia, DDSMission Viejo, CA 926921689349763
- William Hui, D.D.S.Mission Viejo, CA 926921922158393
- Haley Kessler, DDSMission Viejo, CA 926921629790555
Common questions
What is Hee Yon Koh, DMD's NPI number?
Hee Yon Koh, DMD's National Provider Identifier (NPI) is 1427255090, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Hee Yon Koh, DMD located?
The NPPES record lists a practice address at 25100 Marguerite Pkwy Ste A, Mission Viejo, CA, 92692. Phone: (949) 768-3801. Providers update this record themselves, so call before visiting.
How can I verify Hee Yon Koh, DMD's license?
NPPES lists California license number 60415, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Hee Yon Koh, DMD prescribe under Medicare Part D?
In 2024, Hee Yon Koh, DMD had 34 Medicare Part D claims for 28 beneficiaries; the average among dentist prescribers was 86. 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.