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MARI ALYCE BENSON MSSW
NPI 1275521049
Social Worker - Clinical in Chattanooga, TN

Active since October 06, 2005PECOS Enrolled
600 N HOLTZCLAW AVE, STE 100, CHATTANOOGA, TN 37404(423) 622-0500(423) 622-0564 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 13, 2026, Mar 5, 2020 (2 updates tracked since 2020).

About Mari Alyce Benson Mssw NPPES

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

MARI ALYCE BENSON MSSW (NPI 1275521049) is an individual clinical provider in Chattanooga, Tennessee, licensed in Tennessee (LSW04479) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275521049
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMARI ALYCE BENSONCredential: MSSW
Location Address600 N HOLTZCLAW AVE, STE 100Chattanooga, TN 37404-1242
Mailing Address1400 Mccallie Ave, Ste 100Chattanooga, TN 37404-2927
Phone(423) 622-0500
Fax(423) 622-0564
Sole ProprietorNo
Enumeration DateOctober 6, 2005
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPPES CertifiedMarch 5, 2020
✔ NPI 1275521049 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 TN · LSW04479
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.
600 N HOLTZCLAW AVE, Chattanooga, TN 37404
Open in Google Maps ↗

Other Identifiers 1

Medicaid3927752TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc., BlueCross BlueShield of Tennessee, Cigna Healthcare 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 (PECOS)

Mari Alyce Benson Mssw 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.

Medicare Billing Reassignment

Medicare enrollment records show Mari Benson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Chattanooga Autism Center
3.0 mi
Clinical
3097 BROAD ST
Chattanooga, TN 37408
  • Reassigned Medicare billing, Tennessee enrollment
  • 2 clinicians in this Medicare group
NPI 1134486855 (423) 260-1115

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37404 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 $52.64 – $160.89
Typical copayment $0.00 (range $13.16 – $40.22)
Most-billed visit code NA
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
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 13

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

DOROTHY D VOLZ APN
Nurse Practitioner
600 N HOLTZCLAW AVE, STE 100
CHATTANOOGA, TN 37404
Hamilton County (423) 622-0500
MARIBEL LAGUNAS M.S. SLP-CCC
Speech-Language Pathologist
600 N HOLTZCLAW AVE, SUITE 200
CHATTANOOGA, TN 37404
Hamilton County (423) 622-6900
MICHELLE J FREEMAN OT
Occupational Therapist
600 N HOLTZCLAW AVE, SUITE 100
CHATTANOOGA, TN 37404
Hamilton County (423) 622-0500
CHATTANOOGA PODIATRY CENTER, PC
Podiatrist (Foot & Ankle Surgery)
600 N HOLTZCLAW AVE, SUITE 210
CHATTANOOGA, TN 37404
Hamilton County (423) 698-2406
NICOLE R BERGER MSPT
Physical Therapist
600 N HOLTZCLAW AVE, STE 100
CHATTANOOGA, TN 37404
Hamilton County (423) 622-0500
SANDRA L KILPATRICK PHD
Psychologist (Clinical)
600 N HOLTZCLAW AVE, STE 100
CHATTANOOGA, TN 37404
Hamilton County (423) 622-0500
MARY ANDREWS LCSW
Social Worker (Clinical)
600 N HOLTZCLAW AVE, SUITE 100
CHATTANOOGA, TN 37404
Hamilton County (423) 622-0500
KATHRYNE WOLFE KERLEY MA CCC-SLP
Speech-Language Pathologist
600 N HOLTZCLAW AVE, SUITE 200
CHATTANOOGA, TN 37404
Hamilton County (423) 622-6900

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 Mari Benson's NPI number?

The NPI number for Mari Benson is 1275521049. It was assigned to this individual provider in the NPPES registry on October 6, 2005.

Where is Mari Benson located?

Mari Benson practices at 600 N Holtzclaw Ave Ste 100, Chattanooga, TN 37404. The listed phone number is (423) 622-0500.

What is Mari Benson's specialty?

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

Is Mari Benson enrolled in Medicare?

Yes. Mari Benson is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mari Benson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mari Benson reassigns Medicare benefits to Chattanooga Autism Center (Chattanooga, TN). The 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 Mari Benson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mari Benson accept?

Health plans from Alliant Health Plans, Inc., BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Insurance Company and UnitedHealthcare list Mari Benson 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 Mari Benson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.