James Riley Sagar, M.D.
Diagnostic Radiology Physician · Nashville, TN
James Riley Sagar, M.D. is a diagnostic radiology physician with a practice address in Nashville, Tennessee, and NPI 1861682155, issued on Aug 1, 2007. Check the license (Tennessee MD54080, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Riley Sagar
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- MD54080 TN
067763 GA
Self-reported in NPPES; status is on the state search - Practice location
- 3601 The Vanderbilt Clinic, Nashville, TN 37232
- Phone
- (615) 322-3000
- Enumerated
- Aug 1, 2007
- Record last updated
- Aug 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170815000907); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2007
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 968 in Tennessee → Look up another NPI →
Also registered at 3601 The Vanderbilt Clinic
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify James Riley Sagar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license MD54080Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 61.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Carolina West Radiology PASylva, NC
- Cherokee Indian Hospital AuthorityCherokee, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Riley Sagar among 968 diagnostic radiology physician records in Tennessee
James Riley Sagar, M.D. is one of 968 diagnostic radiology physician records with a practice address in Tennessee. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 35% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2007 · median 2004 among the 657 with a school on file
- Record last updated2016 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
325 diagnostic radiology physician records list a practice address in Nashville
They are 325 of the 24,357 NPPES records with a practice address in Nashville, and 968 diagnostic radiology physician records in Tennessee.
All 968 in Tennessee → Every provider in Nashville → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Andrea Birch, MDNashville, TN 372321386629780
- John Carr, MDNashville, TN 372321497730899
- Lori Deitte, MDNashville, TN 372321710951512
- Michel Demaeseneer, MDNashville, TN 372321659332427
- Richard Fleming, MDNashville, TN 372321831192087
- James Green, MDNashville, TN 372321932185766
- David Kunz, M.D.Nashville, TN 372321164414157
- Robert Mahoney, MDNashville, TN 372321043206329
Common questions
What is James Riley Sagar, M.D.'s NPI number?
James Riley Sagar, M.D.'s National Provider Identifier (NPI) is 1861682155, issued on Aug 1, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Riley Sagar, M.D. located?
The NPPES record lists a practice address at 3601 The Vanderbilt Clinic, Nashville, TN, 37232. Phone: (615) 322-3000. Providers update this record themselves, so call before visiting.
How can I verify James Riley Sagar, M.D.'s license?
NPPES lists Tennessee license number MD54080, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is James Riley Sagar, M.D.'s MIPS final score?
The 2023 MIPS final score is 61.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.