Dongwuk Koh
Optician · Irvine, CA
Dongwuk Koh is an optician with a practice address in Irvine, California, and NPI 1285047886, issued on Jun 11, 2014. Check the license (California 195239, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Dongwuk Koh
- Primary taxonomy
- Optician 156FX1800X
- License number
- 195239 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4790 Irvine Blvd Suit 105-180, Irvine, CA 92620
- Phone
- (562) 677-5541
- Enumerated
- Jun 11, 2014
- Record last updated
- Jun 11, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (562) 202-5154
- Entity
- Type 1 · individual
8 nearest optician records → All 334 in California → Look up another NPI →
Verify Dongwuk 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 195239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Dongwuk Koh among 334 optician records in California
Dongwuk Koh is one of 334 optician records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2014, is newer than 47% of them.
- NPI issued2014 · 47% of these records are older, 51% newer
- In a Medicare fileNo · 2% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2014 · 81% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 156FX1800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optician providers in California
There are 334 optician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 334 in California → Every provider in Irvine → Optician nationwide →
The 8 optician records with the nearest ZIP codes
- Jin Goo ChoIrvine, CA 926201902396948
- Jung Choe, ABOCIrvine, CA 926201710693890
- Tierra Grubbs, ABOC, FNAOCosta Mesa, CA 926261164889424
- Minsoo KimCosta Mesa, CA 926261174297360
- Colleen Hannegan, RDOLake Forest, CA 926301619024601
- Komal Kumar, ABOIrvine, CA 926061033625264
- Aleksandra Agyin, RSLD, RCLDIrvine, CA 926021508421959
- Harold Flores, RSLDIrvine, CA 926021225693682
Common questions
What is Dongwuk Koh's NPI number?
Dongwuk Koh's National Provider Identifier (NPI) is 1285047886, issued on Jun 11, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Dongwuk Koh located?
The NPPES record lists a practice address at 4790 Irvine Blvd Suit 105-180, Irvine, CA, 92620. Phone: (562) 677-5541. Providers update this record themselves, so call before visiting.
How can I verify Dongwuk Koh's license?
NPPES lists California license number 195239, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.