Individual provider Active NPI

George Alexiades Stamatiades, MD

  • Endocrinology, Diabetes & Metabolism Physician
  • Boston, MA
National Provider Identifier
1902300122
Registry record updated Jun 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
1015395 Issued in MA
Practice address
15 Parkman St
Boston, MA 02114-3117
Phone
(617) 726-8720
NPI assigned
Mar 21, 2018
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 9, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 1015395 MA Primary
Student in an Organized Health Care Education/Training Program 390200000X
Hospitalist Physician 208M00000X 69151 CT

Addresses

Primary practice location

15 Parkman St
Boston, MA 02114-3117

Mailing address

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

Other practice location 1

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

Other practice location 2

221 Longwood Ave
Boston, MA 02115-5817
Phone (617) 732-5666

Other practice location 3

267 Grant St
Bridgeport, CT 06610-2805
Phone (203) 384-4677

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT, MA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20211004001723 CT Practitioner - Hospitalist 1355685470 Reassigns benefits to 1 organization
I20230919001909 MA Practitioner - EndocrinologyPractitioner - Internal Medicine 1355685470 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
EndocrinologyAlso: Internal Medicine
Education
Other, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

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

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
1015395MAMDClinical Social Worker

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc CurrentSince Sep 1, 2023 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jan 1, 2025 Accepting new patients
Northeast Medical Group, Inc. Endocrinology, Diabetes & Metabolism CurrentSince Oct 11, 2021 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jan 1, 2025 Accepting new patients
Mill Hill Medical Consultants Inc Hospitalist CurrentSince Oct 11, 2021 Accepting new patients
Brigham and Womens Physicians Organization Inc Past Accepting new patients

Locations

267 Grant St
Bridgeport, CT 06610
Phone (203) 384-3170

300 Seaside Ave
Milford, CT 06460
Phone (203) 876-4000

95 Armory Rd
Stratford, CT 06614
Phone (203) 384-3388

75 Francis St
Boston, MA 02115

221 Longwood Ave
Boston, MA 02115
Phone (617) 732-4918

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

62 13th St
Charlestown, MA 02129
Phone (617) 724-4260

1153 Centre St
Jamaica Plain, MA 02130
Phone (617) 983-7000

Interoperability endpoints

  • Direct secure messaging: gstamatiades396553@direct.ynhh.org

Organizations & group practices 6

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 6

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": "1521590400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780963200000",
    "number": "1902300122",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "617-732-5500"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15 PARKMAN ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021143117",
            "telephone_number": "617-726-8720"
        }
    ],
    "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"
        },
        {
            "address_1": "221 Longwood Ave",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021155817",
            "country_code": "US",
            "telephone_number": "617-732-5666",
            "fax_number": "617-732-5764",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "267 Grant St",
            "address_purpose": "LOCATION",
            "city": "Bridgeport",
            "state": "CT",
            "postal_code": "066102805",
            "country_code": "US",
            "telephone_number": "203-384-4677",
            "fax_number": "203-384-3135",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STAMATIADES",
        "first_name": "GEORGE",
        "middle_name": "ALEXIADES",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-21",
        "last_updated": "2026-06-09",
        "certification_date": "2026-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "MA",
            "license": "1015395",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CT",
            "license": "69151",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.