William W. Tseng, M.D.
Surgical Oncology Physician · Arcadia, CA
William W. Tseng, M.D. is a surgical oncology physician with a practice address in Arcadia, California, and NPI 1417071242, issued on Mar 19, 2007. Check the license (California A94446, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William W. Tseng
- Credential
- M.D.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- A94446 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 W Huntington Dr Ste 400, Arcadia, CA 91007
- Phone
- (626) 218-9840
- Enumerated
- Mar 19, 2007
- Record last updated
- Jun 8, 2022
- Fax
- (626) 218-9860
- Medicare enrollment
- Enrolled (PECOS I20140626001207); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 301 W Huntington Dr Ste 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Behnam Badie, MDNeurological Surgery Physician1114026846
- Mike Chen, M.D.Neurological Surgery Physician1932111986
- Christopher Chung, M.D.Urogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1346441144
- Yasmin ZerhouniColon & Rectal Surgery Physician1467722124
Verify William W. Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94446Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $2,706.17
2 payments; by number, the most common kind was consulting fee; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 1,132 providers of this specialty with any payment received $4,224.74 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
- City OF Hope Medical FoundationSouth Pasadena, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
Other surgical oncology physician records in California
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- Aziz Ahmad, M.D.Duarte, CA1487866216
- Rahim Aimaq, MDDuarte, CA1710133889
- Yasir AkmalLos Angeles, CA1689832966
- Mohammed Al-Temimi, MDSan Jose, CA1144562836
- Glenn Allison, M.D.Orange, CA1245386051
- Farin Amersi, M.D.West Hollywood, CA1679587604
- Stephanie Angarita, M.D.Downey, CA1003259219
- Elizabeth Arena, M.D.Los Angeles, CA1245460237
- Ava Armani, M.D.San Diego, CA1861759383
Common questions
What is William W. Tseng, M.D.'s NPI number?
William W. Tseng, M.D.'s National Provider Identifier (NPI) is 1417071242, issued on Mar 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William W. Tseng, M.D. located?
The NPPES record lists a practice address at 301 W Huntington Dr Ste 400, Arcadia, CA, 91007. Phone: (626) 218-9840. Providers update this record themselves, so call before visiting.
How can I verify William W. Tseng, M.D.'s license?
NPPES lists California license number A94446, 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.