Sangduk Oh, DDS, PHD
General Practice Dentistry · Irvine, CA
Sangduk Oh, DDS, PHD is a general practice dentistry with a practice address in Irvine, California, and NPI 1831386671, issued on Sep 25, 2007. Check the license (California 45304, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sangduk Oh
- Credential
- DDS, PHD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 45304 CA
Self-reported in NPPES; status is on the state search - Practice location
- 62 Corporate Park Ste 110, Irvine, CA 92606
- Phone
- (949) 474-1212
- Enumerated
- Sep 25, 2007
- Record last updated
- Sep 25, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (949) 474-1023
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 17,852 in California → Look up another NPI →
Verify Sangduk Oh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 45304Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average general practice dentistry in 2024
78 Medicare Part D claims for 41 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
- Amoxicillin42 claims
- Ibuprofen25 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.
Sangduk Oh among 17,852 general practice dentistry records in California
Sangduk Oh, DDS, PHD 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 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).
178 general practice dentistry records list a practice address in Irvine
They are 178 of the 7,778 NPPES records with a practice address in Irvine, and 17,852 general practice dentistry records in California.
All 17,852 in California → Every provider in Irvine → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Carlos Compean, DDSIrvine, CA 926061639282759
- Carolyn Ghazal, DDSIrvine, CA 926061659383206
- Patrick Huston, DDSIrvine, CA 926061255445938
- Keith Johnson, DDSIrvine, CA 926061043324734
- Dean Lambridis, DDSIrvine, CA 926061003829052
- Andrea Moore, DDSIrvine, CA 926061316052467
- Noor Rahimi, DDSIrvine, CA 926061225141351
- Darin Reagan, DDSIrvine, CA 926061437162492
Common questions
What is Sangduk Oh, DDS, PHD's NPI number?
Sangduk Oh, DDS, PHD's National Provider Identifier (NPI) is 1831386671, issued on Sep 25, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sangduk Oh, DDS, PHD located?
The NPPES record lists a practice address at 62 Corporate Park Ste 110, Irvine, CA, 92606. Phone: (949) 474-1212. Providers update this record themselves, so call before visiting.
How can I verify Sangduk Oh, DDS, PHD's license?
NPPES lists California license number 45304, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sangduk Oh, DDS, PHD prescribe under Medicare Part D?
In 2024, Sangduk Oh, DDS, PHD had 78 Medicare Part D claims for 41 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.