DR. STEVEN L CHEN M.D.
NPI 1366410086
Surgery - Surgical Oncology in San Diego, CA
About Dr. Steven L Chen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN L CHEN M.D. (NPI 1366410086) is an individual surgical oncology provider in San Diego, California, licensed in California (A90439) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Michigan Medical School (1998).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Steven L Chen M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Steven Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92126 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN DIEGO, CA 92126
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Steven Chen's NPI number?
The NPI number for Steven Chen is 1366410086. It was assigned to this individual provider in the NPPES registry on March 9, 2006.
Where is Steven Chen located?
Steven Chen practices at 8901 Activity Rd, San Diego, CA 92126. The listed phone number is (858) 571-0606.
What is Steven Chen's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Steven Chen enrolled in Medicare?
Yes. Steven Chen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Steven Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Chen reassigns Medicare benefits to 2 organizations: Emergency And Acute Care Medical Corporation (San Diego, CA) and James J Chao MD Facs A Professional Corporation (Encinitas, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Steven Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Steven Chen was last updated on January 6, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Steven L Chen, M.D. · NPI 1366410086
Surgical Oncology physician in San Diego, California. Individual provider, active in the CMS NPPES registry since March 9, 2006.
## Identity
- **NPI:** 1366410086 (Entity type: Individual)
- **Enumerated:** March 9, 2006
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** A90439 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 8901 ACTIVITY RD, San Diego, CA 92126-4427
- **Phone:** (858) 571-0606 · **Fax:** (858) 571-1933
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA); James J Chao MD Facs A Professional Corporation (NPI 1861746703, Encinitas, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 1998
## Record status
- **NPPES last updated:** January 6, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1366410086) · Data from the CMS NPPES public registry.