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

Mrs. Selina A Williams, RN, FNP

Individual provider School Registered Nurse · NPI 1144538836

Mrs. Selina A Williams, RN, FNP is a Nurse Practitioner in Islip, New York. Qualified in 2011, 15 years ago. Practices with North Shore-Lij Medical PC, a 6,350-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
15
Licensed in
NY
In the registry since
2010
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.
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

Practice location Address checks out

712 Main St
Islip, NY 11751-3620
Phone: (631) 666-3939
Show map & directions

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

Specialties & licences

Family Health Clinical Nurse Specialist (primary) Taxonomy 364SF0001X · Licence F336693 (NY)
School Registered Nurse Taxonomy 163WS0200X · Licence 562964 (NY)

Record details

NPI number1144538836
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , FNP
Sole proprietorYes
NPI enumeratedSeptember 16, 2010
Last updated in NPPESJuly 14, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice North Shore-Lij Medical Pc — 6350 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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