Largest OB/GYN and women's health groups in Massachusetts
- Groups
- 57
- Obstetrics and Gynecology groups
- 50
- Advanced Practice Midwife groups
- 7
- OB-GYNs
- 377
- Advanced practice midwife specialists
- 18
There are 57 OB/GYN and women's health groups in Massachusetts with a Medicare PAC ID: 50 obstetrics and gynecology and 7 advanced practice midwife. Pratt Ob/Gyn Associates is the largest obstetrics and gynecology group, with 75 OB-GYNs, and AFA OB/GYN the largest advanced practice midwife group, with 6 advanced practice midwife specialists.
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Boston University Medical Group (BUMG) is the largest OB/GYN and women's health group in Massachusetts, with 92 physicians
Ranked by physicians with a Massachusetts address linked to each group. Pratt Ob/Gyn Associates is second with 75, and Ob Hospitalist Group third with 62.
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Showing 1 to 50 of 57 OB/GYN and women's health groups in Massachusetts
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Pratt Ob/Gyn Associates is the largest obstetrics and gynecology group in Massachusetts, with 75 OB-GYNs
Ranked by OB-GYNs with a Massachusetts address linked to each group whose main sub-specialty is obstetrics and gynecology. Ob Hospitalist Group is second with 62, and Boston University Medical Group (BUMG) third with 46.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
AFA OB/GYN is the largest advanced practice midwife group in Massachusetts, with 6 advanced practice midwife specialists
Ranked by advanced practice midwife specialists with a Massachusetts address linked to each group whose main sub-specialty is advanced practice midwife. Obstetrical Associates, Inc. is second with 3, and Tapestry Health third with 3.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Beth Israel Lahey Health has the most physicians in Massachusetts OB/GYN and women's health groups, with 45 across 2 groups
Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Massachusetts OB/GYN and women's health groups. Each clinician counts once per parent organization.
- Beth Israel Lahey Health
- Seacoast Affiliated Group Practice
- OB/GYN Women's Care
See every medical group, site and clinician under Beth Israel Lahey Health
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 57 Massachusetts OB/GYN and women's health groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
79% of Massachusetts OB/GYN and women's health groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
Massachusetts OB/GYN and women's health groups by ownership
- Independent45
- Health system or hospital8
- Platform or corporate owner1
- Community or government1
- Other organization2
Sites of care beyond their own offices
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Source: Dmand AI Org Hierarchy Data
9 Massachusetts OB/GYN and women's health groups practice at a hospital site, and 2 at an FQHC
Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.
Massachusetts OB/GYN and women's health groups by site of care
- Hospitals9
- FQHCs2
Clinicians in Massachusetts OB/GYN and women's health groups
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Brookline has the most OB/GYN and women's health groups in Massachusetts, with 5
More Massachusetts cities with OB/GYN and women's health groups
- Burlington2
- Concord2
- North Andover2
- Wellesley2
- Woburn2
- Andover1
- Beverly1
- Brewster1
- Chestnut Hill1
- Framingham1
- Hingham1
- Hyannis1
- Lawrence1
- Mashpee1
- Middleboro1
Source: Doctors and Clinicians National Downloadable File (CMS)
Each Massachusetts OB/GYN and women's health group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Massachusetts OB/GYN and women's health group list
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
Groups whose main specialty is OB/GYN and women's health and that have a Medicare PAC ID.
FAQ
Frequently asked questions about OB/GYN and women's health groups in Massachusetts
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What is the largest obstetrics and gynecology group in Massachusetts?
Pratt Ob/Gyn Associates, based in Boston, with 75 OB-GYNs and 96 HCPs. Ob Hospitalist Group is second with 62.
What is the largest advanced practice midwife group in Massachusetts?
AFA OB/GYN, based in Concord, with 6 advanced practice midwife specialists and 18 HCPs. Obstetrical Associates, Inc. is second with 3.
How many OB/GYN and women's health groups are in Massachusetts?
There are 57 OB/GYN and women's health groups in Massachusetts with a Medicare PAC ID: 50 obstetrics and gynecology and 7 advanced practice midwife. Between them they have 377 OB-GYNs and 18 advanced practice midwife specialists.
How many Massachusetts OB/GYN and women's health groups are independent?
45, or 79%, have no larger parent organization in the Dmand AI org hierarchy. 8 belong to a health system or hospital and 1 to a physician platform or corporate owner.
Why are ob/gyn and women's health listed together?
They share one specialty category in the Dmand AI medical group data. This page also ranks each sub-specialty on its own, by its own specialists.
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