Victor K. Weng, D.O.
Internal Medicine Physician · Downey, CA
Victor K. Weng, D.O. is an internal medicine physician with a practice address in Downey, California, and NPI 1972624435, issued on Apr 3, 2007. Check the license (California 20A10594, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Victor K. Weng
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 20A10594 CA
5101016625 MI
Self-reported in NPPES; status is on the state search - Practice location
- 11525 Brookshire Ave, Downey, CA 90241
- Phone
- (562) 869-4497
- Enumerated
- Apr 3, 2007
- Record last updated
- Dec 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (562) 869-6317
- Medicare enrollment
- Enrolled (PECOS I20090203000317); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 11525 Brookshire Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ghazaleh Bahrami, M.DInternal Medicine Physician1083881841
- Douglas Blose, M.D.Dermatology Physician1306816657
- Donna Butts, N.P.Family Nurse Practitioner1225189756
- Deanna ChircoPhysician Assistant1487678405
- Henry Do, M.D.Internal Medicine Physician1538115290
- Vance Eberly, M.D.Orthopaedic Surgery Physician1053429456
Verify Victor K. Weng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average internal medicine physician in 2024
3,304 Medicare Part D claims for 211 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 65 claims were for opioids.
Most prescribed
- Amlodipine Besylate169 claims
- Atorvastatin Calcium164 claims
- Ipratropium-Albuterol136 claims
- Warfarin Sodium135 claims
- Donepezil Hcl115 claims
- Omeprazole98 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
- Southern California Permanente Medical GroupHarbor City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Victor K. Weng among 17,696 internal medicine physician records in California
Victor K. Weng, D.O. is one of 17,696 internal medicine 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
114 internal medicine physician records list a practice address in Downey
They are 114 of the 3,607 NPPES records with a practice address in Downey, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Downey → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nazar Al-Bussam, MDDowney, CA 902411003999145
- Domingo Barrientos, M.D.Downey, CA 902411184685281
- Arthur Carrasco, M.D.Downey, CA 902411588601595
- Shahryar Davari, MDDowney, CA 902411346244373
- Henry Do, M.D.Downey, CA 902411538115290
- Alan Frischer, M.D.Downey, CA 902411982701454
- Narayana Gunda, M.D.Downey, CA 902411720026271
- Vinod Patel, M.D.Downey, CA 902411043226756
Common questions
What is Victor K. Weng, D.O.'s NPI number?
Victor K. Weng, D.O.'s National Provider Identifier (NPI) is 1972624435, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Victor K. Weng, D.O. located?
The NPPES record lists a practice address at 11525 Brookshire Ave, Downey, CA, 90241. Phone: (562) 869-4497. Providers update this record themselves, so call before visiting.
How can I verify Victor K. Weng, D.O.'s license?
NPPES lists California license number 20A10594, 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 K. Weng, D.O. prescribe under Medicare Part D?
In 2024, Victor K. Weng, D.O. had 3,304 Medicare Part D claims for 211 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.