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

Marsha Williamson, NP

Individual provider Nurse Practitioner · NPI 1265552277

Marsha Williamson, NP is a Nurse Practitioner in Manhasset, New York. Qualified in 2002, 24 years ago. Practices with Hicksville Family Medical Care PLLC, a 45-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
24
Licensed in
NY
In the registry since
2007
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

300 Community Dr
Manhasset, NY 11030-3816
Phone: (516) 570-4404
Fax: (516) 570-4444
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence F304057 (NY)

Record details

NPI number1265552277
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedMarch 31, 2007
Last updated in NPPESJuly 8, 2007
Mailing address972 Brush Hollow Rd, Westbury, NY 11590-1740

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Hicksville Family Medical Care Pllc — 45 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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