ROBERT LOY WHITTAKER M.D.
NPI 1366686875
Radiology - Diagnostic Radiology in Nashville, TN
About Robert Loy Whittaker M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT LOY WHITTAKER M.D. (NPI 1366686875) is an individual diagnostic radiology provider in Nashville, Tennessee, licensed in Tennessee (47837) and active in the NPI registry since April 2009. He is enrolled in Medicare PECOS, is affiliated with Southern Tennessee Regional Hlth System Winchester, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 3
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
Robert Loy Whittaker 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
5Medicare enrollment records show Robert Whittaker reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nashville, TN 37203
- Reassigned Medicare billing, Tennessee enrollment
- 245 clinicians in this Medicare group
Murfreesboro, TN 37129
- Reassigned Medicare billing, Tennessee enrollment
- 136 clinicians in this Medicare group
Dickson, TN 37055
- Reassigned Medicare billing, Tennessee enrollment
- 200 clinicians in this Medicare group
Chattanooga, TN 37404
- Reassigned Medicare billing, Tennessee enrollment
- 13 clinicians in this Medicare group
Chattanooga, TN 37421
- Reassigned Medicare billing, Georgia and Tennessee enrollments
- 14 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 90
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Southern Tennessee Regional Hlth System Winchester
Acute Care Hospitals · Winchester, TNParkridge Medical Center
Acute Care Hospitals · Chattanooga, TNRhea Medical Center
Critical Access Hospitals · Dayton, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37203 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 37203
NASHVILLE, TN 37203
NASHVILLE, TN 37203
NASHVILLE, TN 37203
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 Robert Whittaker's NPI number?
The NPI number for Robert Whittaker is 1366686875. It was assigned to this individual provider in the NPPES registry on April 28, 2009.
Where is Robert Whittaker located?
Robert Whittaker practices at 210 25th Ave N Ste 1204, Nashville, TN 37203. The listed phone number is (615) 312-0600.
What is Robert Whittaker's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Robert Whittaker enrolled in Medicare?
Yes. Robert Whittaker 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 Robert Whittaker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Whittaker reassigns Medicare benefits to 5 organizations: Radiology Alliance PC (Nashville, TN), Murfreesboro Radiology & Nuclear Medicine Consultants PLLC (Murfreesboro, TN), Middle Tennessee Imaging LLC (Dickson, TN), Associates In Diagnostic Radiology Inc (Chattanooga, TN) and Plaza Radiology, PLLC (Chattanooga, TN). 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 Robert Whittaker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Whittaker accept?
Health plans from Alliant Health Plans, Inc., Oscar Health and Oscar Insurance Company list Robert Whittaker 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 Robert Whittaker affiliated with any hospitals?
According to CMS data, Robert Whittaker is affiliated with Southern Tennessee Regional Hlth System Winchester, Parkridge Medical Center and Rhea Medical Center.
When was this NPI record last updated?
The NPPES record for Robert Whittaker was last updated on March 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.