NPPES file of Aug 9, 2026

Monica Huyentran Lieu, PA

Psychiatric/Mental Health Clinical Nurse Specialist · Santa Ana, CA

Monica Huyentran Lieu, PA is a psychiatric/mental health clinical nurse specialist with a practice address in Santa Ana, California, and NPI 1184225377, issued on Nov 4, 2020. Check the license (California PA60511, 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
1184225377
Name
Monica Huyentran Lieu
Credential
PA
Primary taxonomy
Psychiatric/Mental Health Clinical Nurse Specialist 364SP0808X
License numbers
PA60511 CA
60511 CA
Self-reported in NPPES; status is on the state search
Practice location
999 N Tustin Ave Ste 216, Santa Ana, CA 92705
Phone
(714) 545-5550
Enumerated
Nov 4, 2020
Record last updated
Aug 29, 2025
Medicare enrollment
Enrolled (PECOS I20220726003737); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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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8 nearest psychiatric/mental health clinical nurse specialist records → All 60 in California → Look up another NPI →

Also registered at 999 N Tustin Ave Ste 216

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

  1. Priti Bhardwaj, M.D.Psychiatry Physician1750419230
  2. Douglas Borgman, PA-C, CAQ-PSYCHMedical Physician Assistant1306297122
  3. Sophia Dang, PA-CPhysician Assistant1265293922
  4. Jennifer Desby, PA-CPhysician Assistant1740392026
  5. Tatiana Gheybi, PA-CPhysician Assistant1487380275
  6. Erin Hurley, PA-CPsychiatric/Mental Health Clinical Nurse Specialist1649760901

Verify Monica Huyentran Lieu 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 PA60511    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

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45% fewer Medicare Part D claims than the average psychiatric/mental health clinical nurse specialist in 2024

584 Medicare Part D claims for 371 beneficiaries, against an average of 1,054 among the 390 providers of this specialty who prescribed in Part D.

  1. Monica Lieu584
  2. Specialty average1,054

Most prescribed

  1. Paxlovid55 claims
  2. Fluticasone Propionate49 claims
  3. Albuterol Sulfate Hfa31 claims
  4. Azithromycin29 claims
  5. Doxycycline Hyclate26 claims
  6. Azelastine 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.

Industry payments in 2024: $70.84

4 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 285 providers of this specialty with any payment received $924.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Monica Lieu$70.84
  2. Specialty average$924.95

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. Pacific Neuropsychiatric Specialists IncCosta Mesa, CA

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

Monica Huyentran Lieu among 60 psychiatric/mental health clinical nurse specialist records in California

Monica Huyentran Lieu, PA is one of 60 psychiatric/mental health clinical nurse specialist records with a practice address in California. 47% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 62% of them.

  • NPI issued2020 · 62% of these records are older, 27% newer
  • In a Medicare fileYes · 47% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2021 · median 2021 among the 24 with a school on file
  • Record last updated2025 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 364SP0808X 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 Clinical Nurse Specialist providers in California

There are 60 psychiatric/mental health clinical nurse specialist records in California.

All 60 in California → Every provider in Santa Ana → Psychiatric/Mental Health Clinical Nurse Specialist nationwide →

The 8 psychiatric/mental health clinical nurse specialist records with the nearest ZIP codes

  1. Erin Hurley, PA-CSanta Ana, CA 927051649760901
  2. Natalie WongSanta Ana, CA 927051619751930
  3. Narjis Bukhari, LVNSanta Ana, CA 927011851947220
  4. Shahrzad Arjomandi, PHYSICIAN ASSISTANTMission Viejo, CA 926911124746318
  5. Madeleine Fajilan, PA-CMission Viejo, CA 926911548810591
  6. Krista Fendrick, PA-CMission Viejo, CA 926911316297286
  7. Sarah Kantelis, PAMission Viejo, CA 926911881047892
  8. Rachel Sabbagh, RN, PMHCNS-BCMission Viejo, CA 926911194650465

Common questions

What is Monica Huyentran Lieu, PA's NPI number?

Monica Huyentran Lieu, PA's National Provider Identifier (NPI) is 1184225377, issued on Nov 4, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Monica Huyentran Lieu, PA located?

The NPPES record lists a practice address at 999 N Tustin Ave Ste 216, Santa Ana, CA, 92705. Phone: (714) 545-5550. Providers update this record themselves, so call before visiting.

How can I verify Monica Huyentran Lieu, PA's license?

NPPES lists California license number PA60511, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Monica Huyentran Lieu, PA prescribe under Medicare Part D?

In 2024, Monica Huyentran Lieu, PA had 584 Medicare Part D claims for 371 beneficiaries; the average among psychiatric/mental health clinical nurse specialist prescribers was 1,054. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.