SHERRI MCMAHAN NP
NPI 1669820726
Nurse Practitioner in Walhalla, SC
About Sherri Mcmahan Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SHERRI MCMAHAN NP (NPI 1669820726) is an individual nurse practitioner in Walhalla, South Carolina, licensed in South Carolina (20167) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS, is affiliated with Prisma Health Oconee Memorial Hospital, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
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
Sherri Mcmahan Np 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 Sherri Mcmahan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seneca, SC 29678
- Reassigned Medicare billing, South Carolina enrollment
- Medicare enrollment name: Prisma Health University Medical Group
- 3,281 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Prisma Health Oconee Memorial Hospital
Acute Care Hospitals · Seneca, SCPrisma Health Laurens County Hospital
Acute Care Hospitals · Clinton, SCPrisma Health Greenville Memorial Hospital
Acute Care Hospitals · Greenville, SCPrisma Health Patewood Hospital
Acute Care Hospitals · Greenville, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29691 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
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 7
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 Sherri Mcmahan's NPI number?
The NPI number for Sherri Mcmahan is 1669820726. It was assigned to this individual provider in the NPPES registry on May 31, 2016.
Where is Sherri Mcmahan located?
Sherri Mcmahan practices at 103 Whitetail Dr, Walhalla, SC 29691. The listed phone number is (864) 638-3444.
What is Sherri Mcmahan's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Sherri Mcmahan enrolled in Medicare?
Yes. Sherri Mcmahan 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 Sherri Mcmahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sherri Mcmahan reassigns Medicare benefits to Ghs Partners In Health, Inc. (Seneca, SC). 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 Sherri Mcmahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sherri Mcmahan accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and InStil Health list Sherri Mcmahan 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 Sherri Mcmahan affiliated with any hospitals?
According to CMS data, Sherri Mcmahan is affiliated with Prisma Health Oconee Memorial Hospital, Prisma Health Laurens County Hospital, Prisma Health Greenville Memorial Hospital and Prisma Health Patewood Hospital.
When was this NPI record last updated?
The NPPES record for Sherri Mcmahan was last updated on August 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Sherri Mcmahan, NP · NPI 1669820726
Nurse Practitioner physician in Walhalla, South Carolina. Individual provider, active in the CMS NPPES registry since May 31, 2016.
## Identity
- **NPI:** 1669820726 (Entity type: Individual)
- **Enumerated:** May 31, 2016
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 20167 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 103 WHITETAIL DR, Walhalla, SC 29691-5837
- **Phone:** (864) 638-3444 · **Fax:** (864) 638-3445
## 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:** Ghs Partners In Health, Inc. (NPI 1457730814, Seneca, SC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** August 11, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1669820726) · Data from the CMS NPPES public registry.