Greta Louise Keys, FNP-BC
Family Nurse Practitioner · Brookhaven, MS
Greta Louise Keys, FNP-BC is a family nurse practitioner with a practice address in Brookhaven, Mississippi, and NPI 1497762256, issued on Aug 2, 2006. Check the license (Mississippi R843927, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Greta Louise Keys
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- R843927 MS
Self-reported in NPPES; status is on the state search - Practice location
- 332 E Monticello St, Brookhaven, MS 39601
- Phone
- (601) 833-3500
- Enumerated
- Aug 2, 2006
- Record last updated
- Mar 7, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (601) 292-6384
- Medicaid ID
- 04187246 MS
- Medicare enrollment
- Enrolled (PECOS I20041013000566); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 3,798 in Mississippi → Look up another NPI →
Verify Greta Louise Keys in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
Search for license R843927Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average family nurse practitioner in 2024
238 Medicare Part D claims for 19 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium16 claims
- Amlodipine Besylate14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Greta Louise Keys among 3,798 family nurse practitioner records in Mississippi
Greta Louise Keys, FNP-BC is one of 3,798 family nurse practitioner records with a practice address in Mississippi. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 87% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2003 · median 2017 among the 2,576 with a school on file
- Record last updated2017 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 family nurse practitioner records list a practice address in Brookhaven
They are 49 of the 309 NPPES records with a practice address in Brookhaven, and 3,798 family nurse practitioner records in Mississippi.
All 3,798 in Mississippi → Every provider in Brookhaven → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Emily Andrews-Wilkinson, NPBrookhaven, MS 396011306884259
- Steven Cabell, NPBrookhaven, MS 396011083662100
- Paige Chisolm, NPBrookhaven, MS 396011659353944
- George Crouse, FNP-BCBrookhaven, MS 396011871878967
- Tammy Dixon, FNPBrookhaven, MS 396011255593364
- Karla Gerald, FNPBrookhaven, MS 396011518299213
- Tonya Hughey, CFNPBrookhaven, MS 396011013026947
- Theresa King, RN, CFNPBrookhaven, MS 396011669576989
Common questions
What is Greta Louise Keys, FNP-BC's NPI number?
Greta Louise Keys, FNP-BC's National Provider Identifier (NPI) is 1497762256, issued on Aug 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Greta Louise Keys, FNP-BC located?
The NPPES record lists a practice address at 332 E Monticello St, Brookhaven, MS, 39601. Phone: (601) 833-3500. Providers update this record themselves, so call before visiting.
How can I verify Greta Louise Keys, FNP-BC's license?
NPPES lists Mississippi license number R843927, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.
How much does Greta Louise Keys, FNP-BC prescribe under Medicare Part D?
In 2024, Greta Louise Keys, FNP-BC had 238 Medicare Part D claims for 19 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.