Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mrs. Gina Louise Mesnier, RN, MSN

Individual provider Adult Psychiatric/Mental Health Registered Nurse · NPI 1538315007

Mrs. Gina Louise Mesnier, RN, MSN is an Adult Psychiatric/Mental Health Registered Nurse in Saint Louis, Missouri. Practices as a sole proprietor. Licensed in Missouri.

Licensed in
MO
In the registry since
2008
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.

See every abbreviation used in this directory →

Practice location Address checks out

3525 Caroline St
Saint Louis, MO 63104-1007
Phone: (314) 977-8900
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Psychiatric/Mental Health Registered Nurse (primary) Taxonomy 163WP0809X · Licence 143043 (MO)

Record details

NPI number1538315007
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MSN
Sole proprietorYes
NPI enumeratedAugust 14, 2008
Last updated in NPPESAugust 14, 2008

Other providers in Saint Louis