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

Caitlin R Castellot, NP

Individual provider Women's Health Nurse Practitioner · NPI 1558677039

Caitlin R Castellot, NP is a Nurse Practitioner in Acton, Massachusetts. Qualified in 2010, 16 years ago. Practices with Acton Medical Associates PC, a 33-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Licensed in
MA
In the registry since
2010
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

321 Main St
Acton, MA 01720-3718
Phone: (978) 635-8700
Fax: (978) 635-8923
Show map & directions

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

Specialties & licences

Women's Health Nurse Practitioner (primary) Taxonomy 363LW0102X · Licence 2258894 (MA)

Record details

NPI number1558677039
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedAugust 23, 2010
Last updated in NPPESJuly 12, 2016

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Acton Medical Associates Pc — 33 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount