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

Dorothy F Semonian, NP

Individual provider Family Nurse Practitioner · NPI 1568497105

Dorothy F Semonian, NP is a Nurse Practitioner in Chelmsford, Massachusetts. Qualified in 1997, 29 years ago. Practices with Stony Brook Primary Care LLC, a 2-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
29
Licensed in
MA
In the registry since
2006
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

20 Research Pl Ste 130
Chelmsford, MA 01863-2454
Phone: (978) 446-9850
Fax: (855) 283-4714
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 192921 (MA)

Record details

NPI number1568497105
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJuly 12, 2006
Last updated in NPPESNovember 22, 2011

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Stony Brook Primary Care Llc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Other providers in Chelmsford