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

Sonia Mathisson, MS, RD, IBCLC

Individual provider Lactation Consultant (Non-RN) · NPI 1689037491

Sonia Mathisson, MS, RD, IBCLC is a Lactation Consultant (Non-RN) in Millwood, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2016
Specialties on file
2
What do these letters mean?
MS — Master of Science
A graduate science degree.
RD — Registered Dietitian
A credentialed nutrition professional.

See every abbreviation used in this directory →

Practice location Address checks out

3 Erin Ct
Millwood, NY 10546-1004
Phone: (914) 450-9304
Show map & directions

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

Specialties & licences

Lactation Consultant (Non-RN) (primary) Taxonomy 174N00000X · Licence L-85295 (NY)
Registered Dietitian Taxonomy 133V00000X · Licence 815962 (NY)

Record details

NPI number1689037491
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS , RD , IBCLC
Sole proprietorYes
NPI enumeratedMarch 30, 2016
Last updated in NPPESMarch 30, 2016