Registry data as of Aug 27, 2026

Monica Lieu, PA

Physician Assistant · Santa Ana, CA

Monica Lieu, PA is a physician assistant 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, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1184225377
Name
Monica Lieu
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
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
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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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-CPhysician Assistant1649760901

Verify Monica 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

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

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

30% fewer Medicare Part D claims than the average physician assistant in 2024

584 Medicare Part D claims for 371 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.

  1. Monica Lieu584
  2. Specialty average832

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, mostly food and beverage; the largest payer was Lilly USA, LLC. The 61,144 providers of this specialty with any payment received $853.85 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$853.85

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

One hospital or facility affiliation

  1. Pacific Neuropsychiatric Specialists IncCosta Mesa, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

122 physician assistant records list a Santa Ana practice address

They are 122 of the 8,904 NPPES records with a Santa Ana practice address, and 13,861 physician assistant records in California.

Other physician assistant records in California

  1. Marcia -Galbraith, PAStockton, CA1407143274
  2. Danny Abad, PAOrange, CA1477158673
  3. Lea Dominique Abadies, PATustin, CA1124754254
  4. Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
  5. Ramina Abbasi, PA-CSignal Hill, CA1093448300
  6. Ariel Abbott, PA-CStockton, CA1780334342
  7. Barrie Abbott, PA-CAnza, CA1861602575
  8. Elizabeth Abbott, PA-CSan Diego, CA1437540762
  9. Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
  10. Fatimeh Abdallah, P.A.-CNewport Beach, CA1487002218

Common questions

What is Monica Lieu, PA's NPI number?

Monica 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 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 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 Lieu, PA prescribe under Medicare Part D?

In 2024, Monica Lieu, PA had 584 Medicare Part D claims for 371 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.