NPPES file of Aug 9, 2026

Marissa Leah Penn, LCSW

Clinical Social Worker · Knoxville, TN

Marissa Leah Penn, LCSW is a clinical social worker with a practice address in Knoxville, Tennessee, and NPI 1487133732, issued on Aug 8, 2018. Check the license (Tennessee 9171, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487133732
Name
Marissa Leah Penn
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
9171 TN
103216-1 NY
Self-reported in NPPES; status is on the state search
Practice location
11840 Kingston Pike Ste B, Knoxville, TN 37934
Phone
(865) 588-3173
Enumerated
Aug 8, 2018
Record last updated
Oct 7, 2025
Fax
(865) 588-3174
Medicare enrollment
Enrolled (PECOS I20250606003020); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest clinical social worker records → All 3,275 in Tennessee → Look up another NPI →

Also registered at 11840 Kingston Pike Ste B

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Diana Biciusca, LPCProfessional Counselor1598304677
  2. Mary Chastain Kennedy, LPC-MHSP (T), NCCProfessional Counselor1922987189
  3. Carly Chwat, PH.D.Clinical Psychologist1407696149
  4. Tracina Cross, LPCProfessional Counselor1326437682
  5. Regina Dance, APRNPsychiatric/Mental Health Nurse Practitioner1740781483
  6. Tierra Gausepohl, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1982330486

Verify Marissa Leah Penn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 9171    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Healthy Mind Counseling Services, IncKnoxville, TN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marissa Leah Penn among 3,275 clinical social worker records in Tennessee

Marissa Leah Penn, LCSW is one of 3,275 clinical social worker records with a practice address in Tennessee. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 63% of them.

  • NPI issued2018 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 12% of these records are
  • In the CMS Doctors and Clinicians fileYes · 21% of these records are
  • Graduated2017 · median 2010 among the 677 with a school on file
  • Record last updated2025 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

447 clinical social worker records list a practice address in Knoxville

They are 447 of the 14,339 NPPES records with a practice address in Knoxville, and 3,275 clinical social worker records in Tennessee.

All 3,275 in Tennessee → Every provider in Knoxville → Clinical Social Worker nationwide →

The 8 clinical social worker records with the nearest ZIP codes

  1. Nancy Britcher, LCSWKnoxville, TN 379341982974978
  2. Dianne Britton, LCSW,ACSWKnoxville, TN 379341740376011
  3. Cathy Chambers, LCSWKnoxville, TN 379341801265897
  4. Matthew Crescenzi, LCSWKnoxville, TN 379341124402755
  5. Cynthia Fugatt, LCSWKnoxville, TN 379341437306966
  6. Pamela Gray, LCSWKnoxville, TN 379341932876000
  7. Sarah Hamblen, LCSWKnoxville, TN 379341598804189
  8. Jamie Harvey, LCSWKnoxville, TN 379341164015509

Common questions

What is Marissa Leah Penn, LCSW's NPI number?

Marissa Leah Penn, LCSW's National Provider Identifier (NPI) is 1487133732, issued on Aug 8, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Marissa Leah Penn, LCSW located?

The NPPES record lists a practice address at 11840 Kingston Pike Ste B, Knoxville, TN, 37934. Phone: (865) 588-3173. Providers update this record themselves, so call before visiting.

How can I verify Marissa Leah Penn, LCSW's license?

NPPES lists Tennessee license number 9171, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.