Victor Y. Hsu, M.D.
Infectious Disease Physician · Orange, CA
Victor Y. Hsu, M.D. is an infectious disease physician with a practice address in Orange, California, and NPI 1609889484, issued on Aug 14, 2006. Check the license (California A73936, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Victor Y. Hsu
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- A73936 CA
Self-reported in NPPES; status is on the state search - Practice location
- 845 W LA Veta Ave, Orange, CA 92868
- Phone
- (714) 289-7171
- Enumerated
- Aug 14, 2006
- Record last updated
- Sep 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (714) 289-7177
- Medicare enrollment
- Enrolled (PECOS I20050810000483); accepts Medicare assignment
- Medical or professional school
- Virginia Commonwealth University, School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 1,119 in California → Look up another NPI →
Also registered at 845 W LA Veta Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Armen, M.D.Infectious Disease Physician1225041080
- Julie Leahy, NPInternal Medicine Physician1477884294
- Tricia Lee, DDSGeneral Practice Dentistry1518119288
- Sayan Ray, M.D.Infectious Disease Physician1881607653
Verify Victor Y. Hsu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73936Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average infectious disease physician in 2024
566 Medicare Part D claims for 84 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Ceftriaxone74 claims
- Ampicillin Sodium52 claims
- Vancomycin Hcl50 claims
- Daptomycin46 claims
- Biktarvy41 claims
- Cefazolin Sodium36 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: $28.37
2 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Victor Y. Hsu among 1,119 infectious disease physician records in California
Victor Y. Hsu, M.D. is one of 1,119 infectious disease 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 4% of them.
- NPI issued2006 · 4% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2000 · median 2003 among the 735 with a school on file
- Record last updated2014 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in California
There are 1,119 infectious disease physician records in California.
All 1,119 in California → Every provider in Orange → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Rosa Andrade, MDOrange, CA 928681093919680
- Robert Armen, M.D.Orange, CA 928681225041080
- Thomas C Cesario, MDOrange, CA 928681265512354
- Coleen Cunningham, M.D.Orange, CA 928681205999075
- Catherine Diamond, MDOrange, CA 928681649350786
- Donald N Forthal, MDOrange, CA 928681215017363
- Shruti Gohil, M.D., M.P.H.Orange, CA 928681851375398
- Geeta K Gupta, MDOrange, CA 928681558441600
Common questions
What is Victor Y. Hsu, M.D.'s NPI number?
Victor Y. Hsu, M.D.'s National Provider Identifier (NPI) is 1609889484, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Victor Y. Hsu, M.D. located?
The NPPES record lists a practice address at 845 W LA Veta Ave, Orange, CA, 92868. Phone: (714) 289-7171. Providers update this record themselves, so call before visiting.
How can I verify Victor Y. Hsu, M.D.'s license?
NPPES lists California license number A73936, 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 Victor Y. Hsu, M.D. prescribe under Medicare Part D?
In 2024, Victor Y. Hsu, M.D. had 566 Medicare Part D claims for 84 beneficiaries; the average among infectious disease physician prescribers was 689. 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.