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

Mrs. Ann Nowlin O'Connor, RN, CNP

Individual provider Family Nurse Practitioner · NPI 1447862925

Mrs. Ann Nowlin O'Connor, RN, CNP is a Family Nurse Practitioner in Leominster, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2020
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

See every abbreviation used in this directory →

Practice location Address checks out

223 Stuart Ave
Leominster, MA 01453-6755
Phone: (978) 855-4051
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 151641 (MA)

Record details

NPI number1447862925
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , CNP
Sole proprietorYes
NPI enumeratedAugust 17, 2020
Last updated in NPPESAugust 17, 2020
Certification dateAugust 17, 2020

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