William Ueng, MD
Neurology Physician · Torrance, CA
William Ueng, MD is a neurology physician with a practice address in Torrance, California, and NPI 1447887559, issued on Mar 26, 2020. Check the license (California A189959, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Ueng
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- A189959 CA
PTL5446 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23530 Hawthorne Blvd Ste 100A, Torrance, CA 90505
- Phone
- (310) 517-4705
- Enumerated
- Mar 26, 2020
- Record last updated
- Mar 23, 2026
- Medicare enrollment
- Enrolled (PECOS I20250814000684); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 23530 Hawthorne Blvd Ste 100A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin Kapur, M.D.Neurology Physician1225492077
Verify William Ueng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A189959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average neurology physician in 2024
99 Medicare Part D claims for 38 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
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: $19.84
1 payment: food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 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.
Bills Medicare through one group practice
- Torrance Health Association IncTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Ueng among 2,339 neurology physician records in California
William Ueng, MD is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 91% of them.
- NPI issued2020 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2020 · median 2006 among the 1,628 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Torrance → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Tim Cha, MDTorrance, CA 905051538267901
- David Edelman, MDTorrance, CA 905051366482960
- Monquen Huang, M.D.Torrance, CA 905051477782035
- Kevin Kapur, M.D.Torrance, CA 905051225492077
- Lawrence Kneisley, M.D.Torrance, CA 905051386655777
- Jeannie LeeTorrance, CA 905051063079051
- Adam PerezTorrance, CA 905051467985242
- Nazila RadTorrance, CA 905051932549425
Common questions
What is William Ueng, MD's NPI number?
William Ueng, MD's National Provider Identifier (NPI) is 1447887559, issued on Mar 26, 2020. An NPI identifies a provider in billing; it is not a license.
Where is William Ueng, MD located?
The NPPES record lists a practice address at 23530 Hawthorne Blvd Ste 100A, Torrance, CA, 90505. Phone: (310) 517-4705. Providers update this record themselves, so call before visiting.
How can I verify William Ueng, MD's license?
NPPES lists California license number A189959, 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 William Ueng, MD prescribe under Medicare Part D?
In 2024, William Ueng, MD had 99 Medicare Part D claims for 38 beneficiaries; the average among neurology physician prescribers was 1,370. 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.