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

Crystal Marie Williams, FNP-BC

Individual provider Family Nurse Practitioner · NPI 1639604754

Crystal Marie Williams, FNP-BC is a Family Nurse Practitioner in Northampton, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2017.

Licensed in
MA
In the registry since
2017
What do these letters mean?
FNP-BC — Family Nurse Practitioner, Board Certified
A family nurse practitioner certified by the ANCC.

See every abbreviation used in this directory →

Practice location Address checks out

325B King St Pioneer Valley Family Medicine
Northampton, MA 01060
Phone: (413) 387-4100
Fax: (413) 387-4119
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 RN2261796 (MA)

Record details

NPI number1639604754
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP-BC
Sole proprietorNo
NPI enumeratedApril 26, 2017
Last updated in NPPESAugust 16, 2018

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