GRAYSON SUMNER DO
NPI 1437508967
Family Medicine in Greenwood, SC
About Grayson Sumner Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRAYSON SUMNER DO (NPI 1437508967) is an individual family medicine provider in Greenwood, South Carolina, licensed in South Carolina (39238) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Self Regional Healthcare, and is a graduate of Other (2016).
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
Grayson Sumner Do 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
3Medicare enrollment records show Grayson Sumner reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenwood, SC 29649
- Reassigned Medicare billing, South Carolina enrollment
- 560 clinicians in this Medicare group
Greenwood, SC 29649
- Reassigned Medicare billing, South Carolina enrollment
- 231 clinicians in this Medicare group
Johnston, SC 29832
- Reassigned Medicare billing, South Carolina enrollment
- Also billed through NPI 1922582105 (South Carolina)
- 126 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 17
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.
Self Regional Healthcare
Acute Care Hospitals · Greenwood, SCAbbeville Area Medical Center
Critical Access Hospitals · Abbeville, SCEdgefield County Healthcare An Affiliate Of Self R
Critical Access Hospitals · Edgefield, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29649 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.
Referred Medical Equipment & Supplies CMS DME claims 10
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 5
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 Grayson Sumner's NPI number?
The NPI number for Grayson Sumner is 1437508967. It was assigned to this individual provider in the NPPES registry on June 6, 2016.
Where is Grayson Sumner located?
Grayson Sumner practices at 110 Highway 246 N, Greenwood, SC 29649. The listed phone number is (864) 725-1750.
What is Grayson Sumner's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Grayson Sumner enrolled in Medicare?
Yes. Grayson Sumner 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 Grayson Sumner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grayson Sumner reassigns Medicare benefits to 3 organizations: Self Medical Group (Greenwood, SC), Self Regional Healthcare (Greenwood, SC) and Self Regional Healthcare Partners (Johnston, SC). 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 Grayson Sumner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grayson Sumner accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and First Choice Next and 1 other insurer list Grayson Sumner 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 Grayson Sumner affiliated with any hospitals?
According to CMS data, Grayson Sumner is affiliated with Self Regional Healthcare, Abbeville Area Medical Center and Edgefield County Healthcare An Affiliate Of Self R.
When was this NPI record last updated?
The NPPES record for Grayson Sumner was last updated on October 7, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.