Diana Nguyen, NP
Psychiatric/Mental Health Nurse Practitioner · Costa Mesa, CA
Diana Nguyen, NP is a psychiatric/mental health nurse practitioner with a practice address in Costa Mesa, California, and NPI 1841966777, issued on Aug 20, 2021. Check the license (California 95018050, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Nguyen
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 95018050 CA
NP95018050 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1150 Baker St, Costa Mesa, CA 92626
- Phone
- (714) 662-7517
- Enumerated
- Aug 20, 2021
- Record last updated
- Oct 20, 2025
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →
Also registered at 1150 Baker St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melissa Gregg, NPFamily Nurse Practitioner1255054490
- Stephanie KimPharmacist1801459458
- Kendra Latty, FNP-CFamily Nurse Practitioner1659763589
Verify Diana Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95018050Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
12 Medicare Part D claims for 11 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
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): 78.7 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $305.49
4 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Diana Nguyen among 4,226 psychiatric/mental health nurse practitioner records in California
Diana Nguyen, NP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 46% of them.
- NPI issued2021 · 46% of these records are older, 46% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2025 · 16% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in California
There are 4,226 psychiatric/mental health nurse practitioner records in California.
All 4,226 in California → Every provider in Costa Mesa → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Joseph AguirreCosta Mesa, CA 926261093310997
- Breanna Aguirre, RNCosta Mesa, CA 926261720958291
- Shiva Ahmadi, FNPCosta Mesa, CA 926261356873715
- Sarah ChestnutCosta Mesa, CA 926261801563705
- Carlos CotaCosta Mesa, CA 926261447184569
- Tam DoCosta Mesa, CA 926261801426192
- Miriam Galindo, PSYD, PMHNPCosta Mesa, CA 926261295525715
- Anam Gulraiz, PMHNP-BCCosta Mesa, CA 926261598432320
Common questions
What is Diana Nguyen, NP's NPI number?
Diana Nguyen, NP's National Provider Identifier (NPI) is 1841966777, issued on Aug 20, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Diana Nguyen, NP located?
The NPPES record lists a practice address at 1150 Baker St, Costa Mesa, CA, 92626. Phone: (714) 662-7517. Providers update this record themselves, so call before visiting.
How can I verify Diana Nguyen, NP's license?
NPPES lists California license number 95018050, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Diana Nguyen, NP prescribe under Medicare Part D?
In 2024, Diana Nguyen, NP had 12 Medicare Part D claims for 11 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
What is Diana Nguyen, NP's MIPS final score?
The 2023 MIPS final score is 78.7 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.