Steven L. Chen, M.D.
Surgical Oncology Physician · San Diego, CA
Steven L. Chen, M.D. is a surgical oncology physician with a practice address in San Diego, California, and NPI 1366410086, issued on Mar 9, 2006. Check the license (California A90439, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven L. Chen
- Credential
- M.D.
- Primary taxonomy
- Surgical Oncology Physician 2086X0206X
- License number
- A90439 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8901 Activity RD, San Diego, CA 92126
- Phone
- (858) 571-0606
- Enumerated
- Mar 9, 2006
- Record last updated
- Jan 6, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (858) 571-1933
- Medicare enrollment
- Enrolled (PECOS I20050804001174); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1998
- Entity
- Type 1 · individual
8 nearest surgical oncology physician records → All 250 in California → Look up another NPI →
Also registered at 8901 Activity RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Francesca Gresik, DPTPhysical Therapist1407193519
- Elizabeth Mayer, P.A.Physician Assistant1134139553
- Sharon Nelson, R.D.Registered Dietitian1699800540
Verify Steven L. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90439Check 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: $113.92
1 payment: food and beverage; the largest payer was Dilon Technologies, 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
- James J Chao MD Facs A Professional CorporationEncinitas, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven L. Chen among 250 surgical oncology physician records in California
Steven L. Chen, M.D. is one of 250 surgical oncology physician records with a practice address in California. 84% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 64% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1998 · median 2004 among the 184 with a school on file
- Record last updated2015 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2086X0206X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Oncology Physician providers in California
There are 250 surgical oncology physician records in California.
All 250 in California → Every provider in San Diego → Surgical Oncology Physician nationwide →
The 8 surgical oncology physician records with the nearest ZIP codes
- Robert Barone, M.D.San Diego, CA 921231528083573
- Lori Uyeno, MDSan Diego, CA 921231851515845
- Arden Chan, M.D.San Diego, CA 921341891767984
- Diego Vicente, M.D.San Diego, CA 921341912134479
- Afshin Bahador, MDSan Diego, CA 921081316963713
- Ava Armani, M.D.San Diego, CA 921031861759383
- Joel Baumgartner, MDSan Diego, CA 921031679629257
- Sarah Blair, M.D.San Diego, CA 921031710918008
Common questions
What is Steven L. Chen, M.D.'s NPI number?
Steven L. Chen, M.D.'s National Provider Identifier (NPI) is 1366410086, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven L. Chen, M.D. located?
The NPPES record lists a practice address at 8901 Activity RD, San Diego, CA, 92126. Phone: (858) 571-0606. Providers update this record themselves, so call before visiting.
How can I verify Steven L. Chen, M.D.'s license?
NPPES lists California license number A90439, 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.