IndividualActive
Crystal Williams, FNP-BC
NPI 1639604754 · Family Nurse Practitioner · Northampton, MA
Provider details
- NPI number
- 1639604754
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- RN2261796 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Established profile(70/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
325b King St
Pioneer Valley Family Medicine
Northampton, MA 01060
Phone: (413) 387-4100
Fax: (413) 387-4119
Street-level locationGet directions
Mailing address
280 Chestnut Street
Springfield, MA 01199-1001
Registry dates
- Enumerated
- 2017-04-26
- Last updated
- 2018-08-16
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.