Marissa Harris, LADC
NPI 1134635030 · Addiction (Substance Use Disorder) Counselor · North Haven, CT
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Harris, LADC is a Addiction (Substance Use Disorder) Counselor provider in North Haven, CT (NPI 1134635030).
Provider details
- NPI number
- 1134635030
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LADC
- Sex
- Female
- Sole proprietor
- No
- License
- 1511 (CT)
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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 5755 S Sandhill RdLas Vegas, NV 89120-2550Phone: (702) 433-4550
Registry dates
- Enumerated
- 2017-12-14
- Last updated
- 2025-12-26
- Certified
- 2025-12-26
Frequently asked questions
- What is Marissa Harris's NPI number?
- Marissa Harris's National Provider Identifier (NPI) is 1134635030, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Harris's specialty?
- Marissa Harris is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Marissa Harris located?
- Marissa Harris's practice location on file with NPPES is 352 State Street, North Haven, CT 06473-2550.
- What is Marissa Harris's phone number?
- The practice phone number listed in the NPPES registry for Marissa Harris is (203) 781-4600.
- Does Marissa Harris accept Medicare?
- Marissa Harris is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Harris's NPI active?
- Yes — Marissa Harris's NPI (1134635030) is active in the NPPES registry as of the last update on 2025-12-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.