Individual provider Active NPI

Benjamin Grebber

  • Pediatrics Physician
  • Boston, MA
National Provider Identifier
1003494246
Registry record updated Jan 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatrics PhysicianTaxonomy code 208000000X
License
1018983 Issued in MA
Practice address
1 Boston Medical Ctr PL Ste 1
Boston, MA 02118-2999
Phone
(617) 638-8000
NPI assigned
Mar 30, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 1018983 MA Primary

Addresses

Primary practice location

1 Boston Medical Ctr PL Ste 1
Boston, MA 02118-2999

Mailing address

1 Boston Medical Ctr PL
Boston, MA 02118-2908

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251209003842 MA Practitioner - Pediatric Medicine 0042756603 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pediatric Medicine
Education
University of Vermont College of Medicine, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

10 Gove St
East Boston, MA 02128-1920

10 Gove St
East Boston, MA 02128-1931

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Boston Medical Center Corporation Current Accepting new patients
Internal Medical Associates-Ebnhc CurrentSince Dec 15, 2025 Accepting new patients
Tufts Medical Center PastSince Apr 6, 2021 Accepting new patients
Neighborhealth Corporation Past Accepting new patients

Locations

10 Grove St
East Boston, MA 02128
Phone (617) 569-5800

1 Boston Medical Ctr Pl
Roxbury, MA 02118
Phone (617) 414-5245

Interoperability endpoints

  • Direct secure messaging: bgrebber346471@direct.ochin.org
  • Direct secure messaging: bgrebber23777@direct.bostonchildrens.org
  • Direct secure messaging: bgrebber174551@direct.bmc.masshiway.net

Organizations & group practices 4

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.

NPI Registry JSON

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

{
    "created_epoch": "1617062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767657600000",
    "number": "1003494246",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CTR PL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182908"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BOSTON MEDICAL CTR PL STE 1",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021182999",
            "telephone_number": "617-638-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREBBER",
        "first_name": "BENJAMIN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-30",
        "last_updated": "2026-01-06",
        "certification_date": "2026-01-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": "1018983",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.