NPPES file of Aug 9, 2026

Marilyn D. Williams, NP

Family Nurse Practitioner · Greenville, MS

Marilyn D. Williams, NP is a family nurse practitioner with a practice address in Greenville, Mississippi, and NPI 1043468234, issued on Sep 3, 2008. Check the license (Mississippi R745833, as entered in NPPES) with the Mississippi board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043468234
Name
Marilyn D. Williams
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
R745833 MS
Self-reported in NPPES; status is on the state search
Practice location
1202 Hospital St, Greenville, MS 38703
Phone
(662) 334-8564
Enumerated
Sep 3, 2008
Record last updated
Mar 19, 2026
Fax
(662) 334-8585
Medicaid ID
01582712 MS
Medicare enrollment
Enrolled (PECOS I20100616000022); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Marilyn D. Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Mississippi board licenses this profession
    Search for license R745833
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Mississippi license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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39% more Medicare Part D claims than the average family nurse practitioner in 2024

1,812 Medicare Part D claims for 278 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 15 claims were for opioids.

  1. Marilyn Williams1,812
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate98 claims
  2. Atorvastatin Calcium92 claims
  3. Metformin Hcl60 claims
  4. Gabapentin58 claims
  5. Losartan Potassium52 claims
  6. Hydralazine Hcl50 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 80.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%70.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Delta Medical GroupGreenville, MS

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marilyn D. Williams among 3,798 family nurse practitioner records in Mississippi

Marilyn D. Williams, NP 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 2008, is newer than 17% of them.

  • NPI issued2008 · 17% of these records are older, 81% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1994 · median 2017 among the 2,576 with a school on file
  • Record last updated2026 · 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).

47 family nurse practitioner records list a practice address in Greenville

They are 47 of the 401 NPPES records with a practice address in Greenville, and 3,798 family nurse practitioner records in Mississippi.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Csqshundra Cox, FNP-BCGreenville, MS 387031962984732
  2. Carol Doolittle, CFNPGreenville, MS 387031568792885
  3. Sandra Eubank, CFNPGreenville, MS 387031871529743
  4. Kyla Holcomb, CFNPGreenville, MS 387031538216809
  5. Carilyn HudsonGreenville, MS 387031912047168
  6. Bobbie Johnson, MSN, NP-CGreenville, MS 387031861050437
  7. Marcie McGaugh, CFNPGreenville, MS 387031962444513
  8. Donna Pinion, CFNPGreenville, MS 387031669669446

Common questions

What is Marilyn D. Williams, NP's NPI number?

Marilyn D. Williams, NP's National Provider Identifier (NPI) is 1043468234, issued on Sep 3, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn D. Williams, NP located?

The NPPES record lists a practice address at 1202 Hospital St, Greenville, MS, 38703. Phone: (662) 334-8564. Providers update this record themselves, so call before visiting.

How can I verify Marilyn D. Williams, NP's license?

NPPES lists Mississippi license number R745833, as entered by the provider. Search the Mississippi board that licenses this profession; the NPPES record confirms identity only.

How much does Marilyn D. Williams, NP prescribe under Medicare Part D?

In 2024, Marilyn D. Williams, NP had 1,812 Medicare Part D claims for 278 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Marilyn D. Williams, NP's MIPS final score?

The 2023 MIPS final score is 80.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.