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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STACY WILLIAMS PMHNP-BC, NP-C
NPI 1477188332
Nurse Practitioner - Psychiatric/Mental Health in Pascagoula, MS

Active since March 10, 2020PECOS EnrolledAccepts Medicare Assignment
501 KREBS AVE STE C, PASCAGOULA, MS 39567(228) 549-1019(732) 832-3632 Get Directions Write a Review

NPPES record last updated: October 12, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 12, 2026, Sep 21, 2026, Jan 21, 2021 and 1 more (4 updates tracked since 2020).

About Stacy Williams Pmhnp-bc, Np-c NPPES

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

STACY WILLIAMS PMHNP-BC, NP-C (NPI 1477188332) is an individual psychiatric/mental health provider in Pascagoula, Mississippi, licensed in Mississippi (903897) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Covington County Hospital Cah, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1477188332
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameSTACY WILLIAMSCredential: PMHNP-BC, NP-C
Location Address501 KREBS AVE STE CPascagoula, MS 39567-3123
Mailing Address40 Bey Lea Rd Ste C101Toms River, NJ 08753-2900 · (228) 549-1019 · Fax (732) 832-3632
Phone(228) 549-1019
Fax(732) 832-3632
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateMarch 10, 2020
Last NPPES UpdateOctober 12, 20264 updates tracked since enumeration
NPPES CertifiedOctober 12, 2026
✔ NPI 1477188332 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MS · 903897
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 903897 (MS)
501 KREBS AVE STE C, Pascagoula, MS 39567
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health and more.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

Stacy Williams Pmhnp-bc, Np-c 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 ID941613079
PECOS Enrollment IDI20210111002150
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Stacy Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Insight Behavioral Health
81 mi
Psychiatric/Mental Health
4906 OLD HIGHWAY 11 STE 3
Hattiesburg, MS 39402
  • Reassigned Medicare billing, Mississippi enrollment
NPI 1295553204 (601) 325-5254
Medical Systems Management LLC
159 mi
Rural Health
129 CENTER ST STE B
Richland, MS 39218
  • Reassigned Medicare billing, Mississippi enrollment
  • 46 clinicians in this Medicare group
NPI 1740555267 (601) 992-9898

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

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

Covington County Hospital Cah

Critical Access Hospitals · Collins, MS
OwnershipGovernment - Local
CMS Certification Number251325
Location701 South Holly AvenueCollins, MS 39428 · Covington County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39567 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.

Other Providers at the Same Location NPPES

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

DONALD RUFFIN PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
501 KREBS AVE STE C
PASCAGOULA, MS 39567
Jackson County (228) 549-1019

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 Stacy Williams's NPI number?

The NPI number for Stacy Williams is 1477188332. It was assigned to this individual provider in the NPPES registry on March 10, 2020.

Where is Stacy Williams located?

Stacy Williams practices at 501 Krebs Ave Ste C, Pascagoula, MS 39567. The listed phone number is (228) 549-1019.

What is Stacy Williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Stacy Williams enrolled in Medicare?

Yes. Stacy 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.

Which organizations bill Medicare for Stacy Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stacy Williams reassigns Medicare benefits to 2 organizations: Insight Behavioral Health (Hattiesburg, MS) and Medical Systems Management LLC (Richland, MS). Each 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 Stacy Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stacy Williams accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee and 1 other insurer list Stacy 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 Stacy Williams affiliated with any hospitals?

According to CMS data, Stacy Williams is affiliated with Covington County Hospital Cah.

When was this NPI record last updated?

The NPPES record for Stacy Williams was last updated on October 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 days 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.