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MS. MARILYN D WILLIAMS NP
NPI 1043468234
Nurse Practitioner - Family in Greenville, MS

Active since September 03, 2008PECOS EnrolledAccepts Medicare Assignment
80.88/100
CMS Quality Rating
1202 HOSPITAL ST, GREENVILLE, MS 38703(662) 334-8564(662) 334-8585 Get Directions Write a Review

NPPES record last updated: March 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 19, 2026, May 29, 2019 (2 updates tracked since 2019).

About Ms. Marilyn D Williams Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. MARILYN D WILLIAMS NP (NPI 1043468234) is an individual family provider in Greenville, Mississippi, licensed in Mississippi (R745833) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS, is affiliated with Delta Health System - The Medical Center, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1043468234
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMS. MARILYN D WILLIAMSCredential: NP
Location Address1202 HOSPITAL STGreenville, MS 38703-3213
Mailing Address1202 Hospital StGreenville, MS 38703-3213 · (662) 334-8564 · Fax (662) 334-8585
Phone(662) 334-8564
Fax(662) 334-8585
Sole ProprietorNo
Medical School CMSOtherGraduated 1994
Enumeration DateSeptember 3, 2008
Last NPPES UpdateMarch 19, 20262 updates tracked since enumeration
NPPES CertifiedMarch 19, 2026
✔ NPI 1043468234 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MS · R745833
1202 HOSPITAL ST, Greenville, MS 38703
Open in Google Maps ↗

Other Identifiers 1

Medicaid01582712MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Arkansas Blue Cross and Blue Shield, Health Advantage, Molina Healthcare and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Marilyn D Williams 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.

PECOS PAC ID8325178452
PECOS Enrollment IDI20100616000022
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
60 services60 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
42 services38 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
24 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Delta Health System - The Medical Center

Acute Care Hospitals · Greenville, MS
1/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number250082
Location1400 E Union Street / PO Box 5247Greenville, MS 38704 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38703 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$80.50 typical visit price
range $51.65 – $159.18
Typical copayment $20.12 (range $12.91 – $39.79)
Most-billed visit code 99203
Established Patient
$92.20 typical visit price
range $16.15 – $129.61
Typical copayment $23.05 (range $4.03 – $32.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.88/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Promoting Interoperability70
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers17 claims48 services$6.05 avg. paid by Medicare
Nebulizer, with compressor E0570
DME-Other DME · category DE000N
1 supplier15 claims15 services$2.09 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier43 claims44 services$106.22 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DELTA PHYSICIAN PRACTICES
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1202 HOSPITAL ST
GREENVILLE, MS 38703
Washington County (662) 335-6703

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 Marilyn Williams's NPI number?

The NPI number for Marilyn Williams is 1043468234. It was assigned to this individual provider in the NPPES registry on September 3, 2008.

Where is Marilyn Williams located?

Marilyn Williams practices at 1202 Hospital St, Greenville, MS 38703. The listed phone number is (662) 334-8564.

What is Marilyn Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Marilyn Williams enrolled in Medicare?

Yes. Marilyn Williams 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.

What insurance does Marilyn Williams accept?

Health plans from Arkansas Blue Cross and Blue Shield, Health Advantage, Molina Healthcare, Octave and Oscar Health Plan, Inc. and 1 other insurer list Marilyn Williams 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 Marilyn Williams affiliated with any hospitals?

According to CMS data, Marilyn Williams is affiliated with Delta Health System - The Medical Center.

When was this NPI record last updated?

The NPPES record for Marilyn Williams was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.