DR. JAMES PRESTON SMITHSON MD
NPI 1720248768
Emergency Medicine in San Diego, CA
About Dr. James Preston Smithson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES PRESTON SMITHSON MD (NPI 1720248768) is an individual emergency medicine provider in San Diego, California, licensed in California (A100174) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. James Preston Smithson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show James Smithson 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 92108
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 80 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 92103 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.
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
SAN DIEGO, CA 92103
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 James Smithson's NPI number?
The NPI number for James Smithson is 1720248768. It was assigned to this individual provider in the NPPES registry on June 12, 2008.
Where is James Smithson located?
James Smithson practices at 200 W Arbor Dr, San Diego, CA 92103. The listed phone number is (619) 543-6737.
What is James Smithson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is James Smithson enrolled in Medicare?
Yes. James Smithson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for James Smithson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Smithson reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (San Diego, CA) and Emergency Services Medical Corporation (San Diego, 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 James Smithson'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 James Smithson was last updated on November 18, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.