Insun Yoon, D.M.D.
General Practice Dentistry · Los Alamitos, CA
Insun Yoon, D.M.D. is a general practice dentistry with a practice address in Los Alamitos, California, and NPI 1447593280, issued on Mar 29, 2013. Check the license (California 100075, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Insun Yoon
- Credential
- D.M.D.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 100075 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10900 Los Alamitos Blvd Ste 133, Los Alamitos, CA 90720
- Phone
- (562) 596-8888
- Enumerated
- Mar 29, 2013
- Record last updated
- Jun 3, 2022
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Also registered at 10900 Los Alamitos Blvd Ste 133
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bijal Mehta, D.D.S.Dentist1043557705
Verify Insun Yoon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 100075Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average general practice dentistry in 2024
43 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Chlorhexidine Gluconate18 claims
- Amoxicillin13 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.
Insun Yoon among 17,852 general practice dentistry records in California
Insun Yoon, D.M.D. 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 2013, is newer than 75% of them.
- NPI issued2013 · 75% of these records are older, 24% 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 updated2022 · 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).
30 general practice dentistry records list a practice address in Los Alamitos
They are 30 of the 1,035 NPPES records with a practice address in Los Alamitos, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Los Alamitos → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Greg Cooper, DDSLos Alamitos, CA 907201912033440
- Corey Deeble, DDSLos Alamitos, CA 907201194832428
- Larry Diamond, D.D.S.Los Alamitos, CA 907201023039856
- Kim Hannaford, D.D.S.Los Alamitos, CA 907201598718538
- Barry Israel, DDSLos Alamitos, CA 907201295816031
- Darby Kaiser, D.D.S.Los Alamitos, CA 907201003973983
- Nelson Pai, DDSLos Alamitos, CA 907201104967959
- Christi Peterson, D.M.D.Los Alamitos, CA 907201568467975
Common questions
What is Insun Yoon, D.M.D.'s NPI number?
Insun Yoon, D.M.D.'s National Provider Identifier (NPI) is 1447593280, issued on Mar 29, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Insun Yoon, D.M.D. located?
The NPPES record lists a practice address at 10900 Los Alamitos Blvd Ste 133, Los Alamitos, CA, 90720. Phone: (562) 596-8888. Providers update this record themselves, so call before visiting.
How can I verify Insun Yoon, D.M.D.'s license?
NPPES lists California license number 100075, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Insun Yoon, D.M.D. prescribe under Medicare Part D?
In 2024, Insun Yoon, D.M.D. had 43 Medicare Part D claims for 19 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.