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

Mrs. Sonja Elizabeth Massey, RN, IBCLC

Individual provider Registered Nurse · NPI 1447311147

Mrs. Sonja Elizabeth Massey, RN, IBCLC is a Registered Nurse in Pacific Grove, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
2
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

529 Central Ave Ste 205
Pacific Grove, CA 93950-2732
Phone: (831) 402-1666
Fax: (831) 657-9702
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 198-14908 (CA)
Registered Nurse Taxonomy 163W00000X · Licence 405202 (CA)

Record details

NPI number1447311147
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , IBCLC
Sole proprietorYes
NPI enumeratedDecember 13, 2006
Last updated in NPPESDecember 9, 2010

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