SYDNEY B GREGG APN
NPI 1447133251
Nurse Practitioner - Family in Knoxville, TN
About Sydney B Gregg Apn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SYDNEY B GREGG APN (NPI 1447133251) is an individual family provider in Knoxville, Tennessee, licensed in Tennessee (38948) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).
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
Sydney B Gregg Apn 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 Sydney Gregg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Knoxville, TN 37923
- Reassigned Medicare billing, Tennessee enrollment
- 19 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37923 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Sydney Gregg's NPI number?
The NPI number for Sydney Gregg is 1447133251. It was assigned to this individual provider in the NPPES registry on July 29, 2025.
Where is Sydney Gregg located?
Sydney Gregg practices at 320 N Park 40 Blvd Ste A, Knoxville, TN 37923. The listed phone number is (865) 692-3462.
What is Sydney Gregg's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Sydney Gregg enrolled in Medicare?
Yes. Sydney Gregg 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 Sydney Gregg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sydney Gregg reassigns Medicare benefits to Knoxville Kidney Center, PLLC (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 Sydney Gregg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sydney Gregg accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 2 other insurers list Sydney Gregg 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 Sydney Gregg was last updated on July 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.
# Sydney B Gregg, APN · NPI 1447133251
Family physician in Knoxville, Tennessee. Individual provider, active in the CMS NPPES registry since July 29, 2025.
## Identity
- **NPI:** 1447133251 (Entity type: Individual)
- **Enumerated:** July 29, 2025
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 38948 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 320 N PARK 40 BLVD STE A, Knoxville, TN 37923-3624
- **Phone:** (865) 692-3462 · **Fax:** (865) 692-3462
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Knoxville Kidney Center, PLLC (NPI 1306864186, Knoxville, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** July 29, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1447133251) · Data from the CMS NPPES public registry.