Quick answers
- Which hospitals does Barbara M. Obrien work at?
- Medicare's official clinician data lists Barbara M. Obrien at 1 hospital: South Shore Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Barbara M. Obrien see patients?
- Medicare's clinician data lists 1 practice location in Weymouth, MA. Call before your visit to confirm the address.
- What is Barbara M. Obrien's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Barbara M. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Barbara M. Obrien accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Barbara M. Obrien?
- (781) 624-8000, as listed in official Medicare / NPI Registry data.
- What is Barbara M. Obrien's NPI number?
- 1609915081. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Barbara M. Obrien works
Medicare's Facility Affiliation Data lists Barbara M. Obrien at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- South Shore HospitalSouth Weymouth, MA · Acute Care Hospital · CCN 220100
Practice locations
Addresses where Barbara M. Obrien is enrolled with Medicare (CMS data updated 2026-10-02).
- 55 Fogg RdWeymouth, MA 02190 (781) 624‑8000
Group practices
Medicare enrollment lists Barbara M. Obrien as a member of these groups (CMS data updated 2026-10-02).
- Coastal Medical Associates443 clinicians in the group
- South Shore Medical Center, Inc.175 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Weymouth
Clinicians with the same Medicare primary specialty in Weymouth, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 1998 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609915081 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians