NPPES file of Aug 9, 2026

Christina Duong, N.P.

Primary Care Nurse Practitioner · Orange, CA

Christina Duong, N.P. is a primary care nurse practitioner with a practice address in Orange, California, and NPI 1770830499, issued on Aug 13, 2012. Check the license (California 22219, 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
1770830499
Name
Christina Duong
Credential
N.P.
Primary taxonomy
Primary Care Nurse Practitioner 363LP2300X
License number
22219 CA
Self-reported in NPPES; status is on the state search
Practice location
101 The City Dr S, Orange, CA 92868
Phone
(714) 880-7812
Enumerated
Aug 13, 2012
Record last updated
Jan 22, 2024
Medicare enrollment
Enrolled (PECOS I20121219000109); 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 101 The City Dr S

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

  1. Danny Abad, PAPhysician Assistant1477158673
  2. Edward AbaradoStudent in an Organized Health Care Education/Training Program1912855198
  3. Nagina Abdiani, DOGeriatric Medicine (Family Medicine) Physician1518543271
  4. Mariam Abdul-Latif, M.D.Pediatrics Physician1538418884
  5. Eric AbelloOtolaryngology Physician1922566215
  6. Brandon Abeyta, MDAnesthesiology Physician1841291804

Verify Christina Duong 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 22219
    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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88% fewer Medicare Part D claims than the average primary care nurse practitioner in 2024

182 Medicare Part D claims for 102 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 22 claims were for opioids.

  1. Christina Duong182
  2. Specialty average1,492

Most prescribed

  1. Cefdinir12 claims
  2. Hydrocodone-Acetaminophen12 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. Regents OF The University OFOrange, CA

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

Christina Duong among 1,131 primary care nurse practitioner records in California

Christina Duong, N.P. is one of 1,131 primary care nurse practitioner records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 15% of them.

  • NPI issued2012 · 15% of these records are older, 83% newer
  • In a Medicare fileYes · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 35% of these records are
  • Graduated2012 · median 2019 among the 398 with a school on file
  • Record last updated2024 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Primary Care Nurse Practitioner providers in California

There are 1,131 primary care nurse practitioner records in California.

The 8 primary care nurse practitioner records with the nearest ZIP codes

  1. Natalie Adame, PNPOrange, CA 928681750993622
  2. Sadie Chichakly, CPNPOrange, CA 928681336680404
  3. Carol De Guzman, NP-COrange, CA 928681669805214
  4. Catherine Deguzman, NP FACOrange, CA 928681528076536
  5. Kristen LefsteinOrange, CA 928681689176109
  6. Andrew Martin, MSN,APRN,CPNP,CCRNOrange, CA 928681679203145
  7. Daniel Pham, FNP-COrange, CA 928681588250690
  8. Nikolaus Voswinkel, AGPCNPOrange, CA 928681306489760

Common questions

What is Christina Duong, N.P.'s NPI number?

Christina Duong, N.P.'s National Provider Identifier (NPI) is 1770830499, issued on Aug 13, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Christina Duong, N.P. located?

The NPPES record lists a practice address at 101 The City Dr S, Orange, CA, 92868. Phone: (714) 880-7812. Providers update this record themselves, so call before visiting.

How can I verify Christina Duong, N.P.'s license?

NPPES lists California license number 22219, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Christina Duong, N.P. prescribe under Medicare Part D?

In 2024, Christina Duong, N.P. had 182 Medicare Part D claims for 102 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. 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.