MRS. GRETA LOUISE KEYS FNP-BC
NPI 1497762256
Nurse Practitioner - Family in Brookhaven, MS
About Mrs. Greta Louise Keys Fnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. GRETA LOUISE KEYS FNP-BC (NPI 1497762256) is an individual family provider in Brookhaven, Mississippi, licensed in Mississippi (R843927) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Other Identifiers 5
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
Mrs. Greta Louise Keys Fnp-bc 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 Greta Keys reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Silver Creek, MS 39663
- Reassigned Medicare billing, Mississippi enrollment
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 39601 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
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 Greta Keys's NPI number?
The NPI number for Greta Keys is 1497762256. It was assigned to this individual provider in the NPPES registry on August 2, 2006. The provider is also known as Ms. Greta L Williams.
Where is Greta Keys located?
Greta Keys practices at 332 E Monticello St, Brookhaven, MS 39601. The listed phone number is (601) 833-3500.
What is Greta Keys's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Greta Keys enrolled in Medicare?
Yes. Greta Keys 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 Greta Keys's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Greta Keys reassigns Medicare benefits to The Healthkey Clinic, LLC (Silver Creek, MS). 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 Greta Keys's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Greta Keys accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee list Greta Keys 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 Greta Keys was last updated on March 7, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mrs. Greta Louise Keys, FNP-BC · NPI 1497762256
Family physician in Brookhaven, Mississippi. Individual provider, active in the CMS NPPES registry since August 2, 2006.
## Identity
- **NPI:** 1497762256 (Entity type: Individual)
- **Enumerated:** August 2, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R843927 (Mississippi)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 332 E MONTICELLO ST, Brookhaven, MS 39601-3430
- **Phone:** (601) 833-3500 · **Fax:** (601) 292-6384
## 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 Healthkey Clinic, LLC (NPI 1679866990, Silver Creek, MS), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** March 7, 2017
- **Other identifiers:** Other P00823061 (MS); Medicaid 04187246 (MS); Other 2014619 (MS); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1497762256) · Data from the CMS NPPES public registry.