NPPES file of Aug 9, 2026

Harry S. Hwang, M.D.

Otolaryngology Physician · Santa Clara, CA

Harry S. Hwang, M.D. is an otolaryngology physician with a practice address in Santa Clara, California, and NPI 1487872859, issued on Apr 23, 2007. Check the license (California A99268, 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
1487872859
Name
Harry S. Hwang
Credential
M.D.
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
A99268 CA
Self-reported in NPPES; status is on the state search
Practice location
710 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-2950
Enumerated
Apr 23, 2007
Record last updated
Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20111109000320); accepts Medicare assignment
Medical or professional school
Ohio State University College Of Medicine, 2005
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 710 Lawrence Expy

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

  1. Iype Abraham, M.D.Internal Medicine Physician1578737243
  2. Oren Abramson, MDPediatric Gastroenterology Physician1265511307
  3. Jamie Adiarte, PA-CPhysician Assistant1073824413
  4. Sarah Adut, PHDClinical Psychologist1609484831
  5. Najla Ahmadzia, M.D.Student in an Organized Health Care Education/Training Program1568692580
  6. Farhana Ahmed, MDHospitalist Physician1215110002

Verify Harry S. Hwang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A99268
    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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75% fewer Medicare Part D claims than the average otolaryngology physician in 2024

136 Medicare Part D claims for 87 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.

  1. Harry Hwang136
  2. Specialty average541

Most prescribed

  1. Prednisone22 claims
  2. Fluticasone Propionate14 claims
  3. Azelastine Hcl13 claims
  4. Doxycycline Monohydrate13 claims
  5. Ciprofloxacin-Dexamethasone11 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. Permanente Medical Group IncSanta Clara, CA

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

Harry S. Hwang among 1,212 otolaryngology physician records in California

Harry S. Hwang, M.D. 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 2007, is newer than 48% of them.

  • NPI issued2007 · 48% of these records are older, 42% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2005 · median 2004 among the 818 with a school on file
  • Record last updated2021 · 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. Todd Dray, MDSanta Clara, CA 950511083791917
  2. Michael Friduss, MDSanta Clara, CA 950511265519193
  3. J. Richard Gaskill, MDSanta Clara, CA 950511053498998
  4. Richard Gunsalus, MDSanta Clara, CA 950511700963659
  5. Larisa Kunda, MDSanta Clara, CA 950511205913159
  6. Dong Lee, MDSanta Clara, CA 950511659505063
  7. Peter Li, M.D.Santa Clara, CA 950511922288745
  8. Bernadette Loftus, MDSanta Clara, CA 950511033295969

Common questions

What is Harry S. Hwang, M.D.'s NPI number?

Harry S. Hwang, M.D.'s National Provider Identifier (NPI) is 1487872859, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Harry S. Hwang, M.D. located?

The NPPES record lists a practice address at 710 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-2950. Providers update this record themselves, so call before visiting.

How can I verify Harry S. Hwang, M.D.'s license?

NPPES lists California license number A99268, 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 Harry S. Hwang, M.D. prescribe under Medicare Part D?

In 2024, Harry S. Hwang, M.D. had 136 Medicare Part D claims for 87 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.