Marissa Hewitt, RDN
NPI 1871481564 · Registered Dietitian · Clarksville, TN
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Hewitt, RDN is a Registered Dietitian provider in Clarksville, TN (NPI 1871481564).
Provider details
- NPI number
- 1871481564
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2025-06-24
- Last updated
- 2025-06-24
- Certified
- 2025-06-24
Frequently asked questions
- What is Marissa Hewitt's NPI number?
- Marissa Hewitt's National Provider Identifier (NPI) is 1871481564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Hewitt's specialty?
- Marissa Hewitt is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Marissa Hewitt located?
- Marissa Hewitt's practice location on file with NPPES is 1197 Belvoir Ln, Clarksville, TN 37040-1443.
- What is Marissa Hewitt's phone number?
- The practice phone number listed in the NPPES registry for Marissa Hewitt is (734) 546-6622.
- Does Marissa Hewitt accept Medicare?
- Marissa Hewitt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Hewitt's NPI active?
- Yes — Marissa Hewitt's NPI (1871481564) is active in the NPPES registry as of the last update on 2025-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.