DR. JAMES SCOT CALDER M.D.
NPI 1538175708
Physical Medicine & Rehabilitation in Newport Beach, CA
About Dr. James Scot Calder M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES SCOT CALDER M.D. (NPI 1538175708) is an individual physical medicine & rehabilitation provider in Newport Beach, California, licensed in California (A042794) and active in the NPI registry since July 2006. 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 Scot Calder M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show James Calder reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Long Beach, CA 90815
- Reassigned Medicare billing, California enrollment
- 4 clinicians in this Medicare group
Los Angeles, CA 90024
- Reassigned Medicare billing, California enrollment
- 12 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.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEWPORT BEACH, CA 92660
NEWPORT BEACH, CA 92660
NEWPORT BEACH, CA 92660
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 Calder's NPI number?
The NPI number for James Calder is 1538175708. It was assigned to this individual provider in the NPPES registry on July 31, 2006.
Where is James Calder located?
James Calder practices at 2071 San Joaquin Hills Rd, Newport Beach, CA 92660. The listed phone number is (310) 995-4247.
What is James Calder's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is James Calder enrolled in Medicare?
Yes. James Calder is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for James Calder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Calder reassigns Medicare benefits to 2 organizations: Great Life Medical PC (Long Beach, CA) and Ihs Medical Group PC (Los Angeles, 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 Calder'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 Calder was last updated on January 21, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.