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DEMETRIUS WILLIAMS PMHNP
NPI 1578296489
Nurse Practitioner - Psychiatric/Mental Health in Mandeville, LA

Active since July 07, 2022PECOS Enrolled
1150 W CAUSEWAY APPROACH, MANDEVILLE, LA 70471(866) 530-6111 Get Directions Write a Review

NPPES record last updated: May 22, 2023. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 22, 2023, Jul 7, 2022 (2 updates tracked since 2022).

About Demetrius Williams Pmhnp NPPES

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

DEMETRIUS WILLIAMS PMHNP (NPI 1578296489) is an individual psychiatric/mental health provider in Mandeville, Louisiana, licensed in Mississippi (905371) and active in the NPI registry since July 2022. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1578296489
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameDEMETRIUS WILLIAMSCredential: PMHNP
Location Address1150 W CAUSEWAY APPROACHMandeville, LA 70471-3038
Mailing AddressPo Box 18679Hattiesburg, MS 39404-8679 · (601) 705-1901 · Fax (601) 705-1952
Phone(866) 530-6111
Sole ProprietorNo
Enumeration DateJuly 7, 2022
Last NPPES UpdateMay 22, 20232 updates tracked since enumeration
NPPES CertifiedMay 22, 2023
✔ NPI 1578296489 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MS · 905371
1150 W CAUSEWAY APPROACH, Mandeville, LA 70471
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMO Louisiana.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Demetrius Williams Pmhnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 70471 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
$83.60 typical visit price
range $53.43 – $164.73
Typical copayment $20.90 (range $13.35 – $41.18)
Most-billed visit code 99203
Established Patient
$95.09 typical visit price
range $16.64 – $133.62
Typical copayment $23.77 (range $4.16 – $33.40)
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 3

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

ANGELLE BERGERON
Social Worker (Clinical)
1150 W CAUSEWAY APPROACH
MANDEVILLE, LA 70471
St. Tammany Parish (866) 530-6111
ANN VUNCANNON ALLEN M.A., LPC, LMFT
Counselor (Professional)
1150 W CAUSEWAY APPROACH, STE. A
MANDEVILLE, LA 70471
St. Tammany Parish (985) 781-7353
ACCESS HEALTH LOUISIANA
Clinic/Center (Federally Qualified Health Center (FQHC))
1150 W CAUSEWAY APPROACH
MANDEVILLE, LA 70471
St. Tammany Parish (866) 530-6111

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 Demetrius Williams's NPI number?

The NPI number for Demetrius Williams is 1578296489. It was assigned to this individual provider in the NPPES registry on July 7, 2022.

Where is Demetrius Williams located?

Demetrius Williams practices at 1150 W Causeway Approach, Mandeville, LA 70471. The listed phone number is (866) 530-6111.

What is Demetrius Williams's specialty?

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

Is Demetrius Williams enrolled in Medicare?

Yes. Demetrius Williams is registered in the Medicare PECOS enrollment system.

What insurance does Demetrius Williams accept?

Health plans from HMO Louisiana list Demetrius 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.

When was this NPI record last updated?

The NPPES record for Demetrius Williams was last updated on May 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.