Individual provider Active NPI

George L King, M.D.

  • Endocrinology, Diabetes & Metabolism Physician
  • Boston, MA
National Provider Identifier
1669458816
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
47728 Issued in MA
Practice address
1 Joslin PL
Boston, MA 02215-5306
Phone
(617) 732-2622
Fax
(617) 732-2637
NPI assigned
Dec 20, 2005
Sex
Male
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
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 47728 MA Primary

Addresses

Primary practice location

1 Joslin PL
Boston, MA 02215-5306

Mailing address

1 Joslin PL
Boston, MA 02215-5306
Phone (617) 732-2622

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
I20050728000385 MA Practitioner - Endocrinology 5294763579 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
Duke University School of Medicine, 1975
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Joslin Clinic IncGroup PAC ID 5092794883, 53 clinicians

Practice addresses (Care Compare)

1 Joslin PL
Boston, MA 02215-5306
Phone (617) 732-2400

Hospital & facility affiliations

  • Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
47728MAMDEndocrinology, Diabetes & Metabolism Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Joslin Clinic Inc CurrentSince Oct 1, 2014 Accepting new patients

Locations

1 Joslin Pl
Boston, MA 02215
Phone (617) 309-2400

Interoperability endpoints

  • Direct secure messaging: gking260489@direct.bilh.masshiway.net

Organizations & group practices 1

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": "1135036800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1669458816",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 JOSLIN PL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155306",
            "telephone_number": "617-732-2622",
            "fax_number": "617-732-2637"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 JOSLIN PL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022155306",
            "telephone_number": "617-732-2622",
            "fax_number": "617-732-2637"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KING",
        "first_name": "GEORGE",
        "middle_name": "L",
        "name_prefix": "Prof.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-20",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MA",
            "license": "47728",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.