Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Gemima St. Louis, PHD
Psychologist in Mattapan, MA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1972630622
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Registry record
Entity type Individual (Type 1)
Name Gemima St. Louis
Credential PHD
Sex Female
Practice address 255 River St, Spark Center-Bmc, Mattapan, MA, 02126
Phone (617) 534-2050
Fax (617) 534-2057
Enumeration date Feb 28, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Gemima St. Louis's NPI record?
Cross-check NPI 1972630622 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1972630622 active?
Yes, as of the latest NPPES snapshot, NPI 1972630622 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Karen Rpgers Lynch Pediatric Registered Nurse · Mattapan, MA NPI 1750651998 Boston Medical Center/Spark Center General Acute Care Hospital · Mattapan, MA NPI 1669714556 Boston Medical Center/Spark Center Early Intervention Provider Agency · Mattapan, MA NPI 1669714457 Dominique Bastien Social Worker · Boston, MA NPI 1689917551 Rachel Walsh Student in an Organized Health Care Education/Training Program · Mattapan, MA NPI 1184394223 Emily Barnes Student in an Organized Health Care Education/Training Program · Mattapan, MA NPI 1437884020 Regina Roberg Clinical Child & Adolescent Psychologist · Mattapan, MA NPI 1538894910 Michelle Zhou Mental Health Counselor · Mattapan, MA NPI 1457088650
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.