Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Caitlin Walsh Brennan, RN, MSN, PHD

Individual provider Adult Health Nurse Practitioner · NPI 1174890966

Caitlin Walsh Brennan, RN, MSN, PHD is an Adult Health Nurse Practitioner in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2011.

Licensed in
MA
In the registry since
2011
Specialties on file
2
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.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

150 S Huntington Ave # 152M
Boston, MA 02130-4817
Phone: (857) 364-6033
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence RN2271914 (MA)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 2271914 (MA)

Record details

NPI number1174890966
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , MSN , PHD
Sole proprietorNo
NPI enumeratedNovember 21, 2011
Last updated in NPPESJuly 10, 2012

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