Marissa Penn, LCSW
NPI 1487133732 · Clinical Social Worker · Knoxville, TN
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Penn, LCSW is a Clinical Social Worker provider in Knoxville, TN (NPI 1487133732).
Provider details
- NPI number
- 1487133732
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 103216-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-08-08
- Last updated
- 2025-10-07
- Certified
- 2025-10-07
Frequently asked questions
- What is Marissa Penn's NPI number?
- Marissa Penn's National Provider Identifier (NPI) is 1487133732, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Penn's specialty?
- Marissa Penn is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marissa Penn located?
- Marissa Penn's practice location on file with NPPES is 11840 Kingston Pike Ste B, Knoxville, TN 37934-3861.
- What is Marissa Penn's phone number?
- The practice phone number listed in the NPPES registry for Marissa Penn is (865) 588-3173.
- Does Marissa Penn accept Medicare?
- Marissa Penn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Penn's NPI active?
- Yes — Marissa Penn's NPI (1487133732) is active in the NPPES registry as of the last update on 2025-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.