Sean Hyunouk Yu, D.D.S.
General Practice Dentistry · Tustin, CA
Sean Hyunouk Yu, D.D.S. is a general practice dentistry with a practice address in Tustin, California, and NPI 1124183520, issued on Dec 26, 2006. Check the license (California 52489, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean Hyunouk Yu
- Credential
- D.D.S.
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 52489 CA
Self-reported in NPPES; status is on the state search - Practice location
- 13420 Newport Ave Ste J, Tustin, CA 92780
- Phone
- (714) 838-1856
- Enumerated
- Dec 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 838-1859
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify Sean Hyunouk Yu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 52489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average general practice dentistry in 2024
35 Medicare Part D claims for 29 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin26 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.
Sean Hyunouk Yu among 17,852 general practice dentistry records in California
Sean Hyunouk Yu, D.D.S. 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 71% 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 updated2007 · 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).
88 general practice dentistry records list a practice address in Tustin
They are 88 of the 2,221 NPPES records with a practice address in Tustin, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Tustin → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Jafar Assaf, DDSTustin, CA 927801336153287
- Guy Biagiotti, DDSTustin, CA 927801740206986
- Pishya Chamkasem, DDSTustin, CA 927801205852761
- Andrew Chu, D.D.S.Tustin, CA 927801568422285
- Maureen Dornan, D.D.S.Tustin, CA 927801477559896
- Baher Fahmy, DDS.Tustin, CA 927801821100264
- Vinod Hattiangadi, DDSTustin, CA 927801265445076
- Kyung Kim, D.D.S.Tustin, CA 927801871541540
Common questions
What is Sean Hyunouk Yu, D.D.S.'s NPI number?
Sean Hyunouk Yu, D.D.S.'s National Provider Identifier (NPI) is 1124183520, issued on Dec 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean Hyunouk Yu, D.D.S. located?
The NPPES record lists a practice address at 13420 Newport Ave Ste J, Tustin, CA, 92780. Phone: (714) 838-1856. Providers update this record themselves, so call before visiting.
How can I verify Sean Hyunouk Yu, D.D.S.'s license?
NPPES lists California license number 52489, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sean Hyunouk Yu, D.D.S. prescribe under Medicare Part D?
In 2024, Sean Hyunouk Yu, D.D.S. had 35 Medicare Part D claims for 29 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.