NPPES file of Aug 9, 2026

Grace Y. Chung, DNP, FNP-BC

Family Nurse Practitioner · Irvine, CA

Grace Y. Chung, DNP, FNP-BC is a family nurse practitioner with a practice address in Irvine, California, and NPI 1801129234, issued on Sep 17, 2009. Check the license (California 19488, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801129234
Name
Grace Y. Chung
Credential
DNP, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
19488 CA
Self-reported in NPPES; status is on the state search
Practice location
1000 Fivepoint, Irvine, CA 92618
Phone
(949) 671-4673
Enumerated
Sep 17, 2009
Record last updated
Jul 13, 2023
Fax
(949) 671-4329
Medicare enrollment
Enrolled (PECOS I20100330001072); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2009
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 1000 Fivepoint

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

  1. Mary Alessi, PA-CPhysician Assistant1962711838
  2. Tara Anderson, PA-CPhysician Assistant1770058349
  3. Aubree Ashdown, PA-CPhysician Assistant1679244503
  4. Ghazal Bahri, M.D.Hospitalist Physician1770013146
  5. Meg Camille Baldonado, FNP-CFamily Nurse Practitioner1346602604
  6. Joseph Barrera, FNPFamily Nurse Practitioner1306289491

Verify Grace Y. Chung 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 19488
    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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92% fewer Medicare Part D claims than the average family nurse practitioner in 2024

103 Medicare Part D claims for 35 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 29 claims were for opioids.

  1. Grace Chung103
  2. Specialty average1,305

Most prescribed

  1. Gabapentin27 claims
  2. Tramadol Hcl17 claims
  3. Baclofen12 claims
  4. Oxycodone Hcl12 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.2
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $288.16

4 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Grace Chung$288.16
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. City OF Hope Medical FoundationIrvine, CA

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

Grace Y. Chung among 16,966 family nurse practitioner records in California

Grace Y. Chung, DNP, FNP-BC 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 2009, is newer than 15% of them.

  • NPI issued2009 · 15% of these records are older, 83% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2009 · median 2019 among the 6,793 with a school on file
  • Record last updated2023 · 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).

152 family nurse practitioner records list a practice address in Irvine

They are 152 of the 7,778 NPPES records with a practice address in Irvine, and 16,966 family nurse practitioner records in California.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Joseph Barrera, FNPIrvine, CA 926181306289491
  2. Ceasar Barrientos, FNP-CIrvine, CA 926181407006034
  3. Happy Baumann, FNP-CIrvine, CA 926181316212368
  4. Ashley Casey, F.N.P.Irvine, CA 926181104003029
  5. Kelly Davey, FNPIrvine, CA 926181205192713
  6. Nicolann Hedgpeth, NPIrvine, CA 926181235118993
  7. Barbara Kangas, NPIrvine, CA 926181649579343
  8. Zahra Kayhan-Mahd, NURSE PRACTITIONERIrvine, CA 926181629280011

Common questions

What is Grace Y. Chung, DNP, FNP-BC's NPI number?

Grace Y. Chung, DNP, FNP-BC's National Provider Identifier (NPI) is 1801129234, issued on Sep 17, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Grace Y. Chung, DNP, FNP-BC located?

The NPPES record lists a practice address at 1000 Fivepoint, Irvine, CA, 92618. Phone: (949) 671-4673. Providers update this record themselves, so call before visiting.

How can I verify Grace Y. Chung, DNP, FNP-BC's license?

NPPES lists California license number 19488, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Grace Y. Chung, DNP, FNP-BC prescribe under Medicare Part D?

In 2024, Grace Y. Chung, DNP, FNP-BC had 103 Medicare Part D claims for 35 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Grace Y. Chung, DNP, FNP-BC's MIPS final score?

The 2023 MIPS final score is 99.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.