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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.

MARCUS ALEXANDER THOMPSON LCSW
NPI 1659146678
Social Worker - Clinical in Knoxville, TN

Active since November 20, 2023PECOS Enrolled
409 MONTBROOK LN, KNOXVILLE, TN 37919(865) 297-7099 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 16, 2026, Apr 16, 2026, May 5, 2025 and 1 more (4 updates tracked since 2023).

About Marcus Alexander Thompson Lcsw NPPES

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

MARCUS ALEXANDER THOMPSON LCSW (NPI 1659146678) is an individual clinical provider in Knoxville, Tennessee, licensed in Tennessee (10385) and active in the NPI registry since November 2023. He is enrolled in Medicare PECOS, maintains a secondary practice location in Rockwood, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2021).

NPPES Registry Identity

NPI1659146678
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameMARCUS ALEXANDER THOMPSONCredential: LCSW
Location Address409 MONTBROOK LNKnoxville, TN 37919-2704
Mailing Address1215 Black Jack RdRockwood, TN 37854-5247 · (865) 297-7099
Phone(865) 297-7099
Sole ProprietorNo
Medical School CMSUniversity Of Tennessee, Hsc, College Of MedicineGraduated 2021
Enumeration DateNovember 20, 2023
Last NPPES UpdateSeptember 16, 20264 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2026
✔ NPI 1659146678 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Licenses✔ Licensed in TN · 10385✔ Licensed in MA · 230130
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.
409 MONTBROOK LN, Knoxville, TN 37919
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Secondary Practice Location 1

Location 11215 Black Jack RdRockwood, TN 37854-5247 · Phone (865) 297-7099

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Marcus Alexander Thompson Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6507335676
PECOS Enrollment IDI20260518003852
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 37919 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

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

NEURO INSTITUTE OF EAST TENNESSEE, PLLC
Psychologist
409 MONTBROOK LN
KNOXVILLE, TN 37919
Knox County (865) 556-0537

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 Marcus Thompson's NPI number?

The NPI number for Marcus Thompson is 1659146678. It was assigned to this individual provider in the NPPES registry on November 20, 2023.

Where is Marcus Thompson located?

Marcus Thompson practices at 409 Montbrook Ln, Knoxville, TN 37919. The listed phone number is (865) 297-7099.

What is Marcus Thompson's specialty?

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

Is Marcus Thompson enrolled in Medicare?

Yes. Marcus Thompson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Marcus Thompson was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.