Samuel Chi Knight Zhang, MD
Radiation Oncology Physician · Torrance, CA
Samuel Chi Knight Zhang, MD is a radiation oncology physician with a practice address in Torrance, California, and NPI 1295354702, issued on Apr 14, 2020. Check the license (California A191140, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel Chi Knight Zhang
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License number
- A191140 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3330 Lomita Blvd, Torrance, CA 90505
- Phone
- (310) 517-4750
- Enumerated
- Apr 14, 2020
- Record last updated
- Apr 7, 2025
- Medicare enrollment
- Enrolled (PECOS I20250926003773); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 735 in California → Look up another NPI →
Also registered at 3330 Lomita Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Anzivino, MDCritical Care Medicine (Internal Medicine) Physician1164479119
- Anthony Arellano-Kruse, M.D.Anesthesiology Physician1144358755
- Gregory Baetge, M.D.Anatomic Pathology & Clinical Pathology Physician1962507657
Verify Samuel Chi Knight Zhang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
One hospital affiliation
- Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Samuel Chi Knight Zhang among 735 radiation oncology physician records in California
Samuel Chi Knight Zhang, MD is one of 735 radiation oncology physician records with a practice address in California. 83% 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 95% of them.
- NPI issued2020 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2020 · median 2005 among the 545 with a school on file
- Record last updated2025 · 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 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in California
There are 735 radiation oncology physician records in California.
All 735 in California → Every provider in Torrance → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Rebecca Philipson, M.D.Torrance, CA 905051184079766
- Andrew Schumacher, M.D.Torrance, CA 905051023457173
- Thomas Simko, MDTorrance, CA 905051558382465
- Alessandra Amadeo, MDTorrance, CA 905031225011034
- Garth GreenTorrance, CA 905031366426421
- Arthur Zimmerman, M.D.Torrance, CA 905021154464337
- Richard Li, MDWhittier, CA 906021174973739
- Lisa Chaiken, MDSanta Monica, CA 904041528062023
Common questions
What is Samuel Chi Knight Zhang, MD's NPI number?
Samuel Chi Knight Zhang, MD's National Provider Identifier (NPI) is 1295354702, issued on Apr 14, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Samuel Chi Knight Zhang, MD located?
The NPPES record lists a practice address at 3330 Lomita Blvd, Torrance, CA, 90505. Phone: (310) 517-4750. Providers update this record themselves, so call before visiting.
How can I verify Samuel Chi Knight Zhang, MD's license?
NPPES lists California license number A191140, 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.
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.