Jina Youn
Dentist · Ontario, CA
Jina Youn is a dentist with a practice address in Ontario, California, and NPI 1528844123, issued on Sep 7, 2023. Check the license (California 109312, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jina Youn
- Primary taxonomy
- Dentist 122300000X
- License number
- 109312 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4190 E 4TH St Ste C, Ontario, CA 91764
- Phone
- (909) 532-8518
- Enumerated
- Sep 7, 2023
- Record last updated
- Sep 7, 2023
- Entity
- Type 1 · individual
8 nearest dentist records → All 14,729 in California → Look up another NPI →
Verify Jina Youn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 109312Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average dentist in 2024
22 Medicare Part D claims for 17 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.
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.
Jina Youn among 14,729 dentist records in California
Jina Youn 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 2023, is newer than 89% of them.
- NPI issued2023 · 89% of these records are older, 7% 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 updated2023 · 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).
52 dentist records list a practice address in Ontario
They are 52 of the 5,375 NPPES records with a practice address in Ontario, and 14,729 dentist records in California.
All 14,729 in California → Every provider in Ontario → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Manreet AtwalOntario, CA 917641831975853
- Kristina Beljean, DMDOntario, CA 917641295110088
- Sophia Fu, DDSOntario, CA 917641174698732
- Asha Gurz, DMDOntario, CA 917641699919910
- Summer HafarOntario, CA 917641588732358
- Antoine Haggar, DDSOntario, CA 917641619189263
- Jack Lee, D.D.S.Ontario, CA 917641518985886
- Matthew Listiyo, DMDOntario, CA 917641104472778
Common questions
What is Jina Youn's NPI number?
Jina Youn's National Provider Identifier (NPI) is 1528844123, issued on Sep 7, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Jina Youn located?
The NPPES record lists a practice address at 4190 E 4TH St Ste C, Ontario, CA, 91764. Phone: (909) 532-8518. Providers update this record themselves, so call before visiting.
How can I verify Jina Youn's license?
NPPES lists California license number 109312, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jina Youn prescribe under Medicare Part D?
In 2024, Jina Youn had 22 Medicare Part D claims for 17 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.