Marie St. Louis, LMHC, NCC
NPI 1689398760 · Professional Counselor · West Babylon, NY
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marie St. Louis, LMHC, NCC is a Professional Counselor provider in West Babylon, NY (NPI 1689398760).
Provider details
- NPI number
- 1689398760
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- LMHC, NCC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 012848-01 (NY)
Specialties & taxonomies
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
3 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
- 2022-10-03
- Last updated
- 2022-10-03
- Certified
- 2022-10-01
Frequently asked questions
- What is Marie St. Louis's NPI number?
- Marie St. Louis's National Provider Identifier (NPI) is 1689398760, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marie St. Louis's specialty?
- Marie St. Louis is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Marie St. Louis located?
- Marie St. Louis's practice location on file with NPPES is 309 Old Farmingdale Rd, West Babylon, NY 11704-6425.
- What is Marie St. Louis's phone number?
- The practice phone number listed in the NPPES registry for Marie St. Louis is (516) 670-5691.
- Does Marie St. Louis accept Medicare?
- Marie St. Louis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marie St. Louis's NPI active?
- Yes — Marie St. Louis's NPI (1689398760) is active in the NPPES registry as of the last update on 2022-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.