Individual provider Active NPI

Jacob Rosenberg, MD,PHD

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1275989170
Registry record updated Mar 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
267648 Issued in MA
Practice address
Massachusetts General Hospital
55 Fruit St.
Boston, MA 02114
Phone
(617) 643-0596
NPI assigned
May 10, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 2, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Infectious Disease Physician 207RI0200X 278940 MA
Internal Medicine Physician 207R00000X 267648 MA Primary

Addresses

Primary practice location

Massachusetts General Hospital
55 Fruit St.
Boston, MA 02114

Mailing address

Massachusetts General Hospital
55 Fruit St.
Boston, MA 02114
Phone (617) 643-0596

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

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
I20200419000378 MA Practitioner - Infectious DiseasePractitioner - Internal Medicine 5092001594 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Infectious DiseaseAlso: Internal Medicine
Education
Stanford University School of Medicine, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
New England Baptist Medical Associates, Inc.Group PAC ID 2365439783, 77 clinicians
Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

125 Parker Hill Ave
Boston, MA 02120-2847
Phone (617) 754-5800

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-0287

Hospital & facility affiliations

  • Massachusetts General Hospital Hospital, Boston, MA, CCN 220071

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
278940MAMDInfectious Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc Internal Medicine CurrentSince Mar 1, 2026 Accepting new patients
General Hospital Corp Current Accepting new patients
New England Baptist Medical Associates, Inc. Internal Medicine CurrentSince Apr 1, 2025 Accepting new patients

Locations

75 Francis St
Boston, MA 02115

55 Fruit St
Boston, MA 02114

55 Fruit St
#2
Boston, MA 02114
Phone (617) 726-2967

125 Parker Hill Ave
Roxbury Xing, MA 02120
Phone (617) 264-1100

Interoperability endpoints

  • Direct secure messaging: rosenberg.jacob.mgh@direct.partners.masshiway.net

Organizations & group practices 5

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 1

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": "1462838400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1275989170",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "MASSACHUSETTS GENERAL HOSPITAL",
            "address_2": "55 FRUIT ST.",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-643-0596"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "MASSACHUSETTS GENERAL HOSPITAL",
            "address_2": "55 FRUIT ST.",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02114",
            "telephone_number": "617-643-0596"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ROSENBERG",
        "first_name": "JACOB",
        "credential": "MD,PHD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-05-10",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MA",
            "license": "278940",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "267648",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.