NPPES file of Aug 9, 2026

Dun Huu Ha, MD

Otolaryngology Physician · Covina, CA

Dun Huu Ha, MD is an otolaryngology physician with a practice address in Covina, California, and NPI 1235199530, issued on Mar 23, 2006. Check the license (California A85706, 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
1235199530
Name
Dun Huu Ha
Credential
MD
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
A85706 CA
Self-reported in NPPES; status is on the state search
Practice location
420 W Rowland St, Covina, CA 91723
Phone
(626) 331-6411
Enumerated
Mar 23, 2006
Record last updated
Dec 16, 2025
Fax
(626) 251-1559
Medicare enrollment
Enrolled (PECOS I20041203000263); accepts Medicare assignment
Medical or professional school
Washington University School Of Medicine, 2004
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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Also registered at 420 W Rowland St

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

  1. Mary Absood, M.D.Internal Medicine Physician1497735906
  2. Nancy Aceves, RN, FNPFamily Nurse Practitioner1235171703
  3. Joseph Alonzo, M.D.Internal Medicine Physician1225077050
  4. Sarah Anh, M.D.Emergency Medicine Physician1104037159
  5. Travis Boyer, FNPFamily Nurse Practitioner1265901870
  6. Annamari Cabrera, MDPediatrics Physician1881653434

Verify Dun Huu Ha in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A85706
    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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67% more Medicare Part D claims than the average otolaryngology physician in 2024

904 Medicare Part D claims for 343 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims. 29 claims were for opioids.

  1. Dun Ha904
  2. Specialty average541

Most prescribed

  1. Fluticasone Propionate212 claims
  2. Amoxicillin83 claims
  3. Ipratropium Bromide81 claims
  4. Azithromycin62 claims
  5. Azelastine Hcl61 claims
  6. Amoxicillin-Clavulanate Potass47 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. Healthcare Partners Affiliates Medical GroupAnaheim, CA

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

Dun Huu Ha among 1,212 otolaryngology physician records in California

Dun Huu Ha, MD is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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, 52% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2004 · median 2004 among the 818 with a school on file
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otolaryngology Physician providers in California

There are 1,212 otolaryngology physician records in California.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. James Williams, MDCovina, CA 917231316924608
  2. Roger Murken, MDClaremont, CA 917111821660838
  3. Michael Chen, M.D.Baldwin Park, CA 917061710247051
  4. Tom Karnezis, M.D.Baldwin Park, CA 917061023272275
  5. Jennifer Tran, M.D.Baldwin Park, CA 917061841488525
  6. Shin-Fu Hsu, M.D.Hacienda Heights, CA 917451447446679
  7. Tai Chang, M.D.Monterey Park, CA 917541619062189
  8. Ted Lai, M.D.Monterey Park, CA 917541659397552

Common questions

What is Dun Huu Ha, MD's NPI number?

Dun Huu Ha, MD's National Provider Identifier (NPI) is 1235199530, issued on Mar 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dun Huu Ha, MD located?

The NPPES record lists a practice address at 420 W Rowland St, Covina, CA, 91723. Phone: (626) 331-6411. Providers update this record themselves, so call before visiting.

How can I verify Dun Huu Ha, MD's license?

NPPES lists California license number A85706, 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 Dun Huu Ha, MD prescribe under Medicare Part D?

In 2024, Dun Huu Ha, MD had 904 Medicare Part D claims for 343 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.