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KAREN CASSIMERE-SULLIVAN LCSW
NPI 1497333876
Social Worker - Clinical in Slidell, LA

Active since March 29, 2021PECOS EnrolledAccepts Medicare Assignment
2331 CAREY ST, SLIDELL, LA 70458(985) 646-6406 Get Directions Write a Review

NPPES record last updated: December 5, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 5, 2025, Feb 13, 2025, Mar 29, 2021 (3 updates tracked since 2021).

About Karen Cassimere-sullivan Lcsw NPPES

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

KAREN CASSIMERE-SULLIVAN LCSW (NPI 1497333876) is an individual clinical provider in Slidell, Louisiana, licensed in Louisiana (15944) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1497333876
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameKAREN CASSIMERE-SULLIVANCredential: LCSW
Location Address2331 CAREY STSlidell, LA 70458-3627
Mailing Address2331 Carey StSlidell, LA 70458-3627 · (985) 646-6406
Phone(985) 646-6406
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 29, 2021
Last NPPES UpdateDecember 5, 20253 updates tracked since enumeration
NPPES CertifiedDecember 5, 2025
✔ NPI 1497333876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in LA · 15944
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2331 CAREY ST, Slidell, LA 70458
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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 from Magnolia Health 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

Karen Cassimere-sullivan Lcsw 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 ID3678083359
PECOS Enrollment IDI20250611001951
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 70458 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
$0.00 typical visit price
range $53.43 – $164.73
Typical copayment $0.00 (range $13.35 – $41.18)
Most-billed visit code NA
Established Patient
$67.06 typical visit price
range $16.64 – $133.62
Typical copayment $16.76 (range $4.16 – $33.40)
Most-billed visit code 99213
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 20

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

THOMAS ROWAN CAC, PSS
Peer Specialist
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
KATHERINE LEE PENTON CPSS
Peer Specialist
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
MRS. JACKIE KILCREASE LAMBERT MHS, CRC, CIT
Counselor (Addiction (Substance Use Disorder))
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
MELISSA ELLEN RAY LPCS
Counselor
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
RONDELL COLLINS HACKETT RSW
Case Manager/Care Coordinator
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
MS. AMNA HUSAIN SPEARS LCSW-BACS
Social Worker (Clinical)
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
MRS. LINDA HARTDEGEN LCSW-BACS
Social Worker (Clinical)
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406
MRS. NANCY WILEY LCSW
Social Worker (Clinical)
2331 CAREY ST
SLIDELL, LA 70458
St. Tammany Parish (985) 646-6406

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 Karen Cassimere-sullivan's NPI number?

The NPI number for Karen Cassimere-sullivan is 1497333876. It was assigned to this individual provider in the NPPES registry on March 29, 2021.

Where is Karen Cassimere-sullivan located?

Karen Cassimere-sullivan practices at 2331 Carey St, Slidell, LA 70458. The listed phone number is (985) 646-6406.

What is Karen Cassimere-sullivan's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Karen Cassimere-sullivan enrolled in Medicare?

Yes. Karen Cassimere-sullivan 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 Karen Cassimere-sullivan accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and Ambetter from Superior HealthPlan list Karen Cassimere-sullivan 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 Karen Cassimere-sullivan was last updated on December 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.