IndividualActive
Gemima St. Louis, PHD
NPI 1972630622 · Psychologist · Mattapan, MA
Gemima St. Louis, PHD is a Psychologist provider in Mattapan, MA (NPI 1972630622).
Provider details
- NPI number
- 1972630622
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 7842 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
255 River St
Spark Center-Bmc
Mattapan, MA 02126
Phone: (617) 534-2050
Fax: (617) 534-2057
Street-level locationGet directions
Mailing address
255 River St
Mattapan, MA 02126
Registry dates
- Enumerated
- 2007-02-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gemima St. Louis's NPI number?
- Gemima St. Louis's National Provider Identifier (NPI) is 1972630622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gemima St. Louis's specialty?
- Gemima St. Louis is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Gemima St. Louis located?
- Gemima St. Louis's practice location on file with NPPES is 255 River St, Mattapan, MA 02126.
- What is Gemima St. Louis's phone number?
- The practice phone number listed in the NPPES registry for Gemima St. Louis is (617) 534-2050.
- Is Gemima St. Louis's NPI active?
- Yes — Gemima St. Louis's NPI (1972630622) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.