NPPES file of Aug 9, 2026

Nhan Hanh Huynh, M.D.

Allergy & Immunology Physician · Los Angeles, CA

Nhan Hanh Huynh, M.D. is an allergy & immunology physician with a practice address in Los Angeles, California, and NPI 1518903814, issued on Jun 22, 2006. Check the license (California A 80923, 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
1518903814
Name
Nhan Hanh Huynh
Credential
M.D.
Primary taxonomy
Allergy & Immunology Physician 207K00000X
License numbers
A 80923 CA
083852 CA
256270 CA
Self-reported in NPPES; status is on the state search
Practice location
1520 San Pablo St, Los Angeles, CA 90033
Phone
(323) 442-5100
Enumerated
Jun 22, 2006
Record last updated
Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20061020000386); accepts Medicare assignment
Medical or professional school
New York Medical College, 2001
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 1520 San Pablo St

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

  1. Frank Acosta, PHDPsychologist1750313490
  2. Gbemisola Adenuga, M.D.Nephrology Physician1952464661
  3. Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
  4. Haig Aharonian, M.D.Internal Medicine Physician1205107653
  5. Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
  6. Mohammad Akmal, M.D.Nephrology Physician1356378087

Verify Nhan Hanh Huynh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A 80923
    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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93% more Medicare Part D claims than the average allergy & immunology physician in 2024

1,428 Medicare Part D claims for 223 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.

  1. Nhan Huynh1,428
  2. Specialty average741

Most prescribed

  1. Azelastine Hcl275 claims
  2. Montelukast Sodium226 claims
  3. Ipratropium Bromide186 claims
  4. Spiriva Respimat149 claims
  5. Fluticasone Propionate122 claims
  6. Wixela Inhub61 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. Southern California Permanente Medical GroupPanorama City, CA

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

Nhan Hanh Huynh among 444 allergy & immunology physician records in California

Nhan Hanh Huynh, M.D. is one of 444 allergy & immunology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 53% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2001 · median 2004 among the 281 with a school on file
  • Record last updated2021 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Allergy & Immunology Physician providers in California

There are 444 allergy & immunology physician records in California.

The 8 allergy & immunology physician records with the nearest ZIP codes

  1. Emilio Jauregui, MDLos Angeles, CA 900331205463684
  2. Yat-Choi Kwong, M.D.Los Angeles, CA 900331649315698
  3. Asal Naderi, MDLos Angeles, CA 900331275859027
  4. Anoshie Ratnayake, M.D.Los Angeles, CA 900331427228873
  5. Shijun Xi, M.D.Los Angeles, CA 900331407130636
  6. Richard Harris, MDLos Angeles, CA 900351104904051
  7. Barry Kohn, M.D.Los Angeles, CA 900281073699724
  8. Melinda Braskett, M.D.Los Angeles, CA 900271457313967

Common questions

What is Nhan Hanh Huynh, M.D.'s NPI number?

Nhan Hanh Huynh, M.D.'s National Provider Identifier (NPI) is 1518903814, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nhan Hanh Huynh, M.D. located?

The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.

How can I verify Nhan Hanh Huynh, M.D.'s license?

NPPES lists California license number A 80923, 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 Nhan Hanh Huynh, M.D. prescribe under Medicare Part D?

In 2024, Nhan Hanh Huynh, M.D. had 1,428 Medicare Part D claims for 223 beneficiaries; the average among allergy & immunology physician prescribers was 741. 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.