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

Theresa A Saia, RN, MSN, CPNP

Individual provider Nurse Practitioner · NPI 1366400939

Theresa A Saia, RN, MSN, CPNP is a Nurse Practitioner in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
CPNP — Certified Pediatric Nurse Practitioner
A nurse practitioner certified in paediatrics.

See every abbreviation used in this directory →

Practice location Address checks out

300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-8427
Fax: (617) 739-5022
Show map & directions

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

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 149508 (MA)

Record details

NPI number1366400939
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MSN , CPNP
Sole proprietorNo
NPI enumeratedMay 3, 2006
Last updated in NPPESJuly 13, 2026

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