NPPES file of Aug 9, 2026

Long Ly Nguyen, DO

Psychiatry Physician · Valencia, CA

Long Ly Nguyen, DO is a psychiatry physician with a practice address in Valencia, California, and NPI 1679223481, issued on Mar 25, 2022. Check the license (California 20A22045, as entered in NPPES) on the Medical Board of California; 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
1679223481
Name
Long Ly Nguyen
Credential
DO
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
20A22045 CA
Self-reported in NPPES; status is on the state search
Practice location
23845 Mcbean Pkwy, Valencia, CA 91355
Phone
(661) 200-2000
Enumerated
Mar 25, 2022
Record last updated
Jul 22, 2026
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 23845 Mcbean Pkwy

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

  1. Wynn AbelardePsychiatric/Mental Health Registered Nurse1548071566
  2. Asma Ahmed, NPAdult Health Nurse Practitioner1740322692
  3. Dele Akao, PHARM.D., BCPSPharmacotherapy Pharmacist1013127588
  4. Mark Alcid, M.D.Anesthesiology Physician1326017286
  5. Audrey AlegriaOccupational Therapist1629957790
  6. Takla Anis, PHARMDPharmacist1225820475

Verify Long Ly Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A22045
    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
Open 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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73% fewer Medicare Part D claims than the average psychiatry physician in 2024

270 Medicare Part D claims for 34 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Long Nguyen270
  2. Specialty average1,000

Most prescribed

  1. Risperidone26 claims
  2. Divalproex Sodium Er19 claims
  3. Sertraline Hcl19 claims
  4. Buspirone Hcl17 claims
  5. Trazodone Hcl17 claims
  6. Gabapentin13 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: $234.10

2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Long Nguyen$234.10
  2. Specialty average$4,954.93

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

Long Ly Nguyen among 8,673 psychiatry physician records in California

Long Ly Nguyen, DO is one of 8,673 psychiatry physician 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 2022, is newer than 93% of them.

  • NPI issued2022 · 93% of these records are older, 4% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Paul Bong, MDValencia, CA 913551154385599
  2. Alexsey Chetverukhin, M.D.Valencia, CA 913551407951825
  3. Stephen Connor, M.D.Valencia, CA 913551538245436
  4. Tiffany Diament, M.D.Valencia, CA 913551487997128
  5. Nora Ekeanya, DOValencia, CA 913551154749844
  6. Wagih Elsewafy, M.D.Santa Clarita, CA 913551679604235
  7. Parker Jones, MDValencia, CA 913551699185579
  8. Sahar Jones, MDValencia, CA 913551962065037

Common questions

What is Long Ly Nguyen, DO's NPI number?

Long Ly Nguyen, DO's National Provider Identifier (NPI) is 1679223481, issued on Mar 25, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Long Ly Nguyen, DO located?

The NPPES record lists a practice address at 23845 Mcbean Pkwy, Valencia, CA, 91355. Phone: (661) 200-2000. Providers update this record themselves, so call before visiting.

How can I verify Long Ly Nguyen, DO's license?

NPPES lists California license number 20A22045, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Long Ly Nguyen, DO prescribe under Medicare Part D?

In 2024, Long Ly Nguyen, DO had 270 Medicare Part D claims for 34 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.