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

Esther Ruth Ngigi, MSN, RN, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1861312555

Esther Ruth Ngigi, MSN, RN, FNP-BC is a Family Nurse Practitioner in North Chelmsford, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2026.

Licensed in
MA
In the registry since
2026
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

See every abbreviation used in this directory →

Practice location PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 468
North Chelmsford, MA 01863-0468
Phone: (978) 996-0901
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN2260562 (MA)

Record details

NPI number1861312555
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , RN , FNP-BC
Sole proprietorNo
NPI enumeratedJuly 21, 2026
Last updated in NPPESJuly 21, 2026
Certification dateJuly 21, 2026

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