Cassandra Duffy, MD MPH

Obstetrics & Gynecology

14+ years in practiceNPI: 1770840274Licensed in MA

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Credentials & Recognition

Specialties

Obstetrics & Gynecology

NPI sub-specialties

Obstetrics & Gynecology, Maternal & Fetal Medicine207VM0101X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

14+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#17

Top OB/GYNs in Massachusetts, 2026

Obstetrics & Gynecology · Massachusetts · 2026

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Frequently Asked Questions about Dr. Cassandra Duffy, MD MPH

Where does Dr. Cassandra Duffy, MD MPH practice?+
Dr. Cassandra Duffy, MD MPH practices in Massachusetts, MA. 330 BROOKLINE AVE BOSTON, MA 022155400.
What is Dr. Cassandra Duffy, MD MPH's phone number?+
Dr. Cassandra Duffy, MD MPH's practice phone is 617-667-2636. Office contact information is verified on the PBCMMG profile.
What does Dr. Cassandra Duffy, MD MPH specialize in?+
Dr. Cassandra Duffy, MD MPH's primary specialty is Obstetrics & Gynecology.
Is Dr. Cassandra Duffy, MD MPH board certified?+
Board certification status for Dr. Cassandra Duffy, MD MPH has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Cassandra Duffy, MD MPH been practicing?+
Dr. Cassandra Duffy, MD MPH has been in active practice for 14+ years, based on NPI enumeration and state licensing records.
What is Dr. Cassandra Duffy, MD MPH's NPI number?+
Dr. Cassandra Duffy, MD MPH's National Provider Identifier (NPI) is 1770840274, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

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