Marissa Hartman, FNP
NPI 1619861721 · Family Nurse Practitioner · Slidell, LA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Hartman, FNP is a Family Nurse Practitioner provider in Slidell, LA (NPI 1619861721).
Provider details
- NPI number
- 1619861721
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 205508 (LA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2025-06-04
- Last updated
- 2025-06-04
- Certified
- 2025-06-04
Frequently asked questions
- What is Marissa Hartman's NPI number?
- Marissa Hartman's National Provider Identifier (NPI) is 1619861721, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Hartman's specialty?
- Marissa Hartman is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Hartman located?
- Marissa Hartman's practice location on file with NPPES is 1389 Lakewood Dr Ste B, Slidell, LA 70458-3127.
- What is Marissa Hartman's phone number?
- The practice phone number listed in the NPPES registry for Marissa Hartman is (504) 919-3850.
- Does Marissa Hartman accept Medicare?
- Marissa Hartman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Hartman's NPI active?
- Yes — Marissa Hartman's NPI (1619861721) is active in the NPPES registry as of the last update on 2025-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.