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

MS. Mary Rebecca Janowitz, RN, IBCLC

Individual provider Lactation Consultant (Registered Nurse) · NPI 1386850147

MS. Mary Rebecca Janowitz, RN, IBCLC is registered under Lactation Consultant (Registered Nurse) in San Francisco, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.

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Practice location Address checks out

3555 Cesar Chavez
San Francisco, CA 94110-4403 Not confirmed with CMS for 19 years — call before visiting
Phone: (415) 641-6869
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Lactation Consultant (Registered Nurse) (primary) Taxonomy 163WL0100X · Licence 10016523 (CA)

Record details

NPI number1386850147
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , IBCLC
Sole proprietorNo
NPI enumeratedMay 15, 2007
Last updated in NPPESJuly 8, 2007

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