DR. ALEXANDER JEFFREY SHEN M.D.
NPI 1710091723
Internal Medicine in Torrance, CA
About Dr. Alexander Jeffrey Shen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEXANDER JEFFREY SHEN M.D. (NPI 1710091723) is an individual internal medicine provider in Torrance, California, licensed in California (A77979) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Alexander Jeffrey Shen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alexander Shen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Torrance, CA 90505
- Reassigned Medicare billing, California enrollment
- 388 clinicians in this Medicare group
Torrance, CA 90501
- Reassigned Medicare billing, California enrollment
- 6 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 90505 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alexander Shen's NPI number?
The NPI number for Alexander Shen is 1710091723. It was assigned to this individual provider in the NPPES registry on August 18, 2006.
Where is Alexander Shen located?
Alexander Shen practices at 3330 Lomita Blvd, Torrance, CA 90505. The listed phone number is (310) 891-6623.
What is Alexander Shen's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Alexander Shen enrolled in Medicare?
Yes. Alexander Shen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexander Shen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Shen reassigns Medicare benefits to 2 organizations: Torrance Health Association Inc (Torrance, CA) and Concert Health Care Inc (Torrance, 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 Alexander Shen'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 Alexander Shen was last updated on May 18, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.