KAREN ALLRED MAYO MSN RN FNP-BC CWON
NPI 1134713688
Nurse Practitioner - Family in Greensboro, NC
About Karen Allred Mayo Msn Rn Fnp-bc Cwon NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN ALLRED MAYO MSN RN FNP-BC CWON (NPI 1134713688) is an individual family provider in Greensboro, North Carolina, licensed in North Carolina (5013712) and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS, is affiliated with Moses H. Cone Memorial Hospital, The, and maintains a secondary practice location in Greensboro.
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
Karen Allred Mayo Msn Rn Fnp-bc Cwon 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 Karen Mayo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greensboro, NC 27401
- Reassigned Medicare billing, North Carolina enrollment
- 408 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Moses H. Cone Memorial Hospital, The
Acute Care Hospitals · Greensboro, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 27401 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.
GREENSBORO, NC 27401
GREENSBORO, NC 27401
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 Karen Mayo's NPI number?
The NPI number for Karen Mayo is 1134713688. It was assigned to this individual provider in the NPPES registry on February 25, 2021.
Where is Karen Mayo located?
Karen Mayo practices at 1121 N Church St, Greensboro, NC 27401. The listed phone number is (336) 953-1889.
What is Karen Mayo's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Mayo enrolled in Medicare?
Yes. Karen Mayo 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 Karen Mayo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Mayo reassigns Medicare benefits to The Moses H Cone Memorial Hospital Operating Corporation (Greensboro, NC). 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 Karen Mayo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Mayo accept?
Health plans from AmeriHealth Caritas Next, Cigna Healthcare, Oscar Health Plan of North Carolina, Inc and UnitedHealthcare list Karen Mayo 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 Karen Mayo affiliated with any hospitals?
According to CMS data, Karen Mayo is affiliated with Moses H. Cone Memorial Hospital, The.
When was this NPI record last updated?
The NPPES record for Karen Mayo was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Karen Allred Mayo, MSN RN FNP-BC CWON · NPI 1134713688
Family physician in Greensboro, North Carolina. Individual provider, active in the CMS NPPES registry since February 25, 2021.
## Identity
- **NPI:** 1134713688 (Entity type: Individual)
- **Enumerated:** February 25, 2021
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 5013712 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1121 N CHURCH ST, Greensboro, NC 27401
- **Phone:** (336) 953-1889
## 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:** The Moses H Cone Memorial Hospital Operating Corporation (NPI 1356372064, Greensboro, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** May 7, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1134713688) · Data from the CMS NPPES public registry.