SARAH R MATHIS RD
NPI 1780885269
Dietitian, Registered in Knoxville, TN
About Sarah R Mathis Rd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARAH R MATHIS RD (NPI 1780885269) is an individual dietitian, registered in Knoxville, Tennessee, licensed in Tennessee (1133) and active in the NPI registry since May 2007. She maintains a secondary practice location in Oak Ridge and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Sarah R Mathis Rd 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 Reassignment
Medicare enrollment records show Sarah Mathis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Knoxville, TN 37909
- Reassigned Medicare billing, Tennessee enrollment
- 34 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37909 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.
KNOXVILLE, TN 37909
KNOXVILLE, TN 37909
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 Sarah Mathis's NPI number?
The NPI number for Sarah Mathis is 1780885269. It was assigned to this individual provider in the NPPES registry on May 30, 2007.
Where is Sarah Mathis located?
Sarah Mathis practices at 1450 Dowell Springs Blvd Suite 300, Knoxville, TN 37909. The listed phone number is (865) 637-8812.
What is Sarah Mathis's specialty?
The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.
Is Sarah Mathis enrolled in Medicare?
Yes. Sarah Mathis 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 organization bills Medicare for Sarah Mathis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Mathis reassigns Medicare benefits to Endocrinology Consultants Of East Tn (Knoxville, TN). The 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 Sarah Mathis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Mathis accept?
Health plans from BlueCross BlueShield of Tennessee and Cigna Healthcare list Sarah Mathis 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.
When was this NPI record last updated?
The NPPES record for Sarah Mathis was last updated on June 7, 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.
# Sarah R Mathis, RD · NPI 1780885269
Dietitian, Registered provider in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since May 30, 2007.
## Identity
- **NPI:** 1780885269 (Entity type: Individual)
- **Enumerated:** May 30, 2007
- **Primary specialty:** Dietitian, Registered · taxonomy 133V00000X
- **State license:** 1133 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1450 DOWELL SPRINGS BLVD, SUITE 300, Knoxville, TN 37909
- **Phone:** (865) 637-8812 · **Fax:** (865) 637-8865
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** Endocrinology Consultants Of East Tn (NPI 1730395104, Knoxville, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** June 7, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1780885269) · Data from the CMS NPPES public registry.