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

Ann Marie Massed, CNM

Individual provider Advanced Practice Midwife · NPI 1326024621

Ann Marie Massed, CNM is an Advanced Practice Midwife in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2005.

Licensed in
MA
In the registry since
2005
What do these letters mean?
CNM — Certified Nurse-Midwife
An advanced practice nurse who provides prenatal care and delivers babies.

See every abbreviation used in this directory →

Practice location Address checks out

850 Harrison Ave Yacc 4
Boston, MA 02118-4001
Phone: (617) 414-2000
Fax: (617) 414-5798
Show map & directions

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

Specialties & licences

Advanced Practice Midwife (primary) Taxonomy 367A00000X · Licence RN134154 (MA)

Record details

NPI number1326024621
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNM
Sole proprietorNo
NPI enumeratedDecember 19, 2005
Last updated in NPPESJune 22, 2020
Certification dateJune 22, 2020

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