DR. JAMES RILEY SAGAR M.D.
NPI 1861682155
Radiology - Diagnostic Radiology in Nashville, TN
About Dr. James Riley Sagar M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES RILEY SAGAR M.D. (NPI 1861682155) is an individual diagnostic radiology provider in Nashville, Tennessee, licensed in Tennessee (MD54080) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Memorial Mission Hospital And Asheville Surgery Ce, and is a graduate of Washington University School Of Medicine (2007).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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. James Riley Sagar 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
6Medicare enrollment records show James Sagar reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rome, GA 30165
- Reassigned Medicare billing, Georgia enrollment
- 168 clinicians in this Medicare group
Cherokee, NC 28719
- Reassigned Medicare billing, Texas enrollment
- 161 clinicians in this Medicare group
Blairsville, GA 30512
- Reassigned Medicare billing, Georgia enrollment
- 95 clinicians in this Medicare group
Sylva, NC 28779
- Reassigned Medicare billing, North Carolina enrollment
- 456 clinicians in this Medicare group
Sylva, NC 28779
- Reassigned Medicare billing, North Carolina enrollment
- 5 clinicians in this Medicare group
Fort Worth, TX 76107
- Reassigned Medicare billing, Texas and North Carolina enrollments
- Also billed through NPI 1710970975 (North Carolina)
- 445 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.
Areas of Expertise CMS Part B claims 57
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Mission Hospital And Asheville Surgery Ce
Acute Care Hospitals · Asheville, NCHarris Regional Hospital
Acute Care Hospitals · Sylva, NCCherokee Indian Hospital Authority
Acute Care Hospitals · Cherokee, NCHaywood Regional Medical Center
Acute Care Hospitals · Clyde, NCDlp Swain County Hospital LLC
Critical Access Hospitals · Bryson City, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37232 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
NASHVILLE, TN 37232
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 Sagar's NPI number?
The NPI number for James Sagar is 1861682155. It was assigned to this individual provider in the NPPES registry on August 1, 2007.
Where is James Sagar located?
James Sagar practices at 3601 The Vanderbilt Clinic, Nashville, TN 37232. The listed phone number is (615) 322-3000.
What is James Sagar's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is James Sagar enrolled in Medicare?
Yes. James Sagar 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 James Sagar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Sagar reassigns Medicare benefits to 6 organizations: Department Of Behavioral Health And Developmental Disabilities (Rome, GA), Cherokee Indian Hospital Authority (Cherokee, NC), Union County Hospital Authority (Blairsville, GA), Dlp Western Carolina Physician Practices LLC (Sylva, NC), Carolina West Radiology PA (Sylva, NC) and 1 more organization, listed in the Medicare section above. 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 Sagar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Sagar accept?
Health plans from Cigna Healthcare list James Sagar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is James Sagar affiliated with any hospitals?
According to CMS data, James Sagar is affiliated with Memorial Mission Hospital And Asheville Surgery Ce, Harris Regional Hospital, Cherokee Indian Hospital Authority, Haywood Regional Medical Center and Dlp Swain County Hospital LLC.
When was this NPI record last updated?
The NPPES record for James Sagar was last updated on August 9, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.