NPPES file of Aug 9, 2026

Jounghwa Ko

Adult Health Nurse Practitioner · Santa Ana, CA

Jounghwa Ko is an adult health nurse practitioner with a practice address in Santa Ana, California, and NPI 1881767895, issued on Nov 16, 2006. Check the license (California NP 14651, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881767895
Name
Jounghwa Ko
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
NP 14651 CA
Self-reported in NPPES; status is on the state search
Practice location
3130 S Harbor Blvd, Santa Ana, CA 92704
Phone
(714) 619-8777
Enumerated
Nov 16, 2006
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040409000613); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3130 S Harbor Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mary BasshamAdult Health Nurse Practitioner1861565012
  2. Maria Veles Cachola, NPFamily Nurse Practitioner1649208760
  3. Lioudmila Koudrina, NPFamily Nurse Practitioner1538296686
  4. Venus Marin, NP(NURSE PRACTITIONENurse Practitioner1821167214
  5. Dean Nghiem, PAPhysician Assistant1639252448
  6. Norina Nillas, NPRegistered Nurse1144304569

Verify Jounghwa Ko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license NP 14651
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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53% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

597 Medicare Part D claims for 120 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Jounghwa Ko597
  2. Specialty average1,280

Most prescribed

  1. Atorvastatin Calcium34 claims
  2. Chlorhexidine Gluconate28 claims
  3. Furosemide24 claims
  4. Levetiracetam23 claims
  5. Lactulose21 claims
  6. Hydralazine Hcl20 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupHarbor City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jounghwa Ko among 1,405 adult health nurse practitioner records in California

Jounghwa Ko is one of 1,405 adult health nurse practitioner 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 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 82% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated2003 · median 2013 among the 441 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in California

There are 1,405 adult health nurse practitioner records in California.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. James AgatepSanta Ana, CA 927041578939153
  2. Mary BasshamSanta Ana, CA 927041861565012
  3. Brenda Bollinger, N.P.Santa Ana, CA 927041639507411
  4. Kevin Ketsan, NPSanta Ana, CA 927041407248214
  5. Ming-Lung Lu, NPSanta Ana, CA 927041194116970
  6. Melinda Brown, NPSanta Ana, CA 927051114440393
  7. Barbara Carrascosa-Andre, ANPSanta Ana, CA 927051447589619
  8. Brooke Casazza, NPSanta Ana, CA 927051811579071

Common questions

What is Jounghwa Ko's NPI number?

Jounghwa Ko's National Provider Identifier (NPI) is 1881767895, issued on Nov 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jounghwa Ko located?

The NPPES record lists a practice address at 3130 S Harbor Blvd, Santa Ana, CA, 92704. Phone: (714) 619-8777. Providers update this record themselves, so call before visiting.

How can I verify Jounghwa Ko's license?

NPPES lists California license number NP 14651, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jounghwa Ko prescribe under Medicare Part D?

In 2024, Jounghwa Ko had 597 Medicare Part D claims for 120 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.