NPIMap

Individual provider Active NPI

Barbara A Masser, M.D.

  • Emergency Medicine Physician
  • Boston, MA
National Provider Identifier
1205873916
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
License
160235 Issued in MA
Practice address
330 Brookline Ave
Beth Israel Deaconess Medical Ctr
Boston, MA 02215-5400
Phone
(617) 754-2347
NPI assigned
Jun 1, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 160235 MA Primary

Addresses

Primary practice location

330 Brookline Ave
Beth Israel Deaconess Medical Ctr
Boston, MA 02215-5400

Mailing address

166 Nason Hill Rd
Sherborn, MA 01770-1230
Phone (617) 754-2347

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20060425000510 MA Practitioner - Emergency Medicine 0749290518 Reassigns benefits to 7 organizations

Care Compare profile

Medicare Care Compare
Specialty
Emergency Medicine
Education
Other, 1997
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr IncGroup PAC ID 4486567104, shared by 12 NPIs, 1,693 clinicians

Practice addresses (Care Compare)

100 Walter J Hannon Pkwy
Suite 143
Quincy, MA 02169-1105
Phone (617) 615-4000

330 Brookline Ave
Boston, MA 02215-5400
Phone (617) 667-5398

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Beth Israel Deaconess Medical Center, Inc. CurrentSince Aug 4, 2014 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc CurrentSince Oct 1, 2020 Accepting new patients
Bid-Milton Physician Associates Inc CurrentSince Oct 1, 2020 Accepting new patients
Beth Israel Deaconess Medical Center, Inc. CurrentSince Aug 4, 2014 Accepting new patients
Associated Physicians of Harvard Medical Faculty Physicians at Beth Is CurrentSince Aug 1, 2003 Accepting new patients
Associated Physicians of Harvard Medical Faculty Physicians at Beth Is CurrentSince Aug 1, 2003 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc CurrentSince Sep 1, 2025 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc Emergency Medicine CurrentSince Oct 1, 1999 Accepting new patients
Bid-Milton Physician Associates Inc CurrentSince Oct 1, 2020 Accepting new patients
Steward Emergency Physicians, Inc Emergency Medicine CurrentSince Jul 16, 2011 Accepting new patients
Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc Current Accepting new patients
Harvard Medical Faculty Physicians at Beth Israel Deaconess Medical Ce Past Accepting new patients

Locations

200 Groton Rd
Ayer, MA 01432
Phone (978) 784-9000

330 Brookline Ave
Boston, MA 02215
Phone (617) 667-2000

910 Washington St
Dedham, MA 02026
Phone (781) 431-1333

199 Reedsdale Rd
Milton, MA 02186
Phone (617) 313-1000

100 Highland St
Milton, MA 02186
Phone (617) 615-4000

101 Page St
New Bedford, MA 02740
Phone (508) 961-5425

100 Walter J Hannon Pkwy
Ste 143
Quincy, MA 02169
Phone (617) 615-4000

100 Walter J Hannon Pkwy
Quincy, MA 02169
Phone (617) 615-4000

Interoperability endpoints

  • Direct secure messaging: bmasser254305@direct.bilh.masshiway.net

Organizations & group practices 12

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 3

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1149120000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1205873916",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "166 NASON HILL RD",
            "city": "SHERBORN",
            "state": "MA",
            "postal_code": "017701230",
            "telephone_number": "617-754-2347"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 BROOKLINE AVE",
            "address_2": "BETH ISRAEL DEACONESS MEDICAL CTR",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155400",
            "telephone_number": "617-754-2347"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASSER",
        "first_name": "BARBARA",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-06-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MA",
            "license": "160235",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.