Sungwon Ok, N.P.
Family Nurse Practitioner · Downey, CA
Sungwon Ok, N.P. is a family nurse practitioner with a practice address in Downey, California, and NPI 1194167841, issued on Jul 23, 2013. Check the license (California NP23201, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sungwon Ok
- Credential
- N.P.
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP23201 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10000 Lakewood Blvd, Downey, CA 90240
- Phone
- (562) 862-3684
- Enumerated
- Jul 23, 2013
- Record last updated
- Jan 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Also registered at 10000 Lakewood Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristy Alston, FNP-CFamily Nurse Practitioner1801110234
- Sameer Amin, MDInternal Medicine Physician1326164633
- Jose Anguiano, M.D.Internal Medicine Physician1841637576
- Rachel Aragon, NPNurse Practitioner1285785725
- Miri Chang, FNP-BCFamily Nurse Practitioner1851610158
- Sepideh Chegini, M.D.Internal Medicine Physician1871547075
Verify Sungwon Ok in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP23201Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average family nurse practitioner in 2024
2,117 Medicare Part D claims for 433 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 16 claims were for opioids.
Most prescribed
- Atorvastatin Calcium200 claims
- Metformin Hcl122 claims
- Amlodipine Besylate98 claims
- Lisinopril71 claims
- Albuterol Sulfate Hfa68 claims
- Metoprolol Succinate63 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.
Sungwon Ok among 16,966 family nurse practitioner records in California
Sungwon Ok, N.P. is one of 16,966 family nurse practitioner records with a practice address in California. 67% 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 24% of them.
- NPI issued2013 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 40% of these records are
- Record last updated2018 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 family nurse practitioner records list a practice address in Downey
They are 94 of the 3,607 NPPES records with a practice address in Downey, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Downey → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Kristy Alston, FNP-CDowney, CA 902401801110234
- Demetra Bastas-Bratkic, CRNPDowney, CA 902401538237177
- Miri Chang, FNP-BCDowney, CA 902401851610158
- Ivan Cruz, NPDowney, CA 902401144605015
- Sergio Hernandez, NPDowney, CA 902401295254191
- Anil Khurana, F.N.PDowney, CA 902401871807933
- Esther Lee, FNP-CDowney, CA 902401467783167
- Tiffany Lin, NPDowney, CA 902401790204659
Common questions
What is Sungwon Ok, N.P.'s NPI number?
Sungwon Ok, N.P.'s National Provider Identifier (NPI) is 1194167841, issued on Jul 23, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Sungwon Ok, N.P. located?
The NPPES record lists a practice address at 10000 Lakewood Blvd, Downey, CA, 90240. Phone: (562) 862-3684. Providers update this record themselves, so call before visiting.
How can I verify Sungwon Ok, N.P.'s license?
NPPES lists California license number NP23201, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sungwon Ok, N.P. prescribe under Medicare Part D?
In 2024, Sungwon Ok, N.P. had 2,117 Medicare Part D claims for 433 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.