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Ann Marie Massed, CNM

Advanced Practice Midwife in Boston, MA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326024621

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Registry record

Entity type Individual (Type 1)
Name Ann Marie Massed
Credential CNM
Sex Female
Practice address 850 Harrison Ave, Yacc 4, Boston, MA, 02118
Phone (617) 414-2000
Fax (617) 414-5798
Enumeration date Dec 19, 2005
Last updated in NPPES Jun 22, 2020

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License RN134154 (MA) Primary
CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier Type State Issuer
110015857A Medicaid MA -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Ann Massed practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ann Massed?
The National Provider Identifier (NPI) for Ann Massed is 1326024621, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-22.