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

Mary Castonguay, RN, IBCLC

Individual provider Lactation Consultant (Registered Nurse) · NPI 1083574255

Mary Castonguay, RN, IBCLC is a Lactation Consultant (Registered Nurse) in Redford, Michigan. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2025
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

See every abbreviation used in this directory →

Practice location Address checks out

14740 Seminole
Redford, MI 48239-3023
Phone: (248) 920-4136
Show map & directions

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

Specialties & licences

Lactation Consultant (Registered Nurse) (primary) Taxonomy 163WL0100X · Licence 4704144289 (MI)

Record details

NPI number1083574255
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , IBCLC
Sole proprietorYes
NPI enumeratedNovember 12, 2025
Last updated in NPPESNovember 12, 2025
Certification dateNovember 12, 2025