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

MS. Theresa Marie Mazzarelli, ACNP

Individual provider Acute Care Nurse Practitioner · NPI 1134338213

MS. Theresa Marie Mazzarelli, ACNP is an Acute Care Nurse Practitioner in Worcester, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2007.

Licensed in
MA
In the registry since
2007
Specialties on file
2
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

Practice location Address checks out

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (774) 441-7611
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 140770 (MA)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 140770 (MA)

Record details

NPI number1134338213
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedMay 22, 2007
Last updated in NPPESNovember 5, 2010

Other providers in Worcester