Alexander O Subtelny, MD

Primary specialty

Anatomic Pathology PhysicianTaxonomy code 207ZP0101X

License

278129 Issued in MA

Practice address

75 Francis St
Boston, MA 02115-6110

Phone

(617) 732-5500

NPI assigned

Jun 8, 2016

Last updated

Jan 24, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Pathology

Education

Harvard Medical School, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Brigham and Womens Physicians Organization IncGroup PAC ID 3870405988, 2,931 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Brigham and Women's Hospital Hospital, Boston, MA, CCN 220110
• Brigham and Women Faulkner Hospital Hospital, Jamaica Plain, MA, CCN 220119
• Dana-Farber Cancer Institute Hospital, Boston, MA, CCN 220162

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: subtelny.alexander.bwh@direct.partners.masshiway.net

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

• Brigham & Womens Physicians Organization Inc

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1033535497

  Anatomic Pathology & Clinical Pathology

  Medicare reassignment Care Compare group NPD
• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573

  Anatomic Pathology & Clinical Pathology

  Medicare reassignment NPD
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment NPD
• Brigham and Women's Hospital

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1093885816
  NPD

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

• Brigham & Womens Hospital, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1790717650
  Care Compare affiliation
• Brigham and Women's Faulkner Hospital Inc

  • Psychiatric Hospital Unit
  • Boston, MA
  • NPI 1033121025
  Care Compare affiliation
• Brigham and Women's Faulkner Hospital Inc

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1578677811
  Care Compare affiliation
• Dana-Farber Cancer Institute, Inc.

  dba Dana-Farber Cancer Institute

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1851333686
  Care Compare affiliation

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

{
    "created_epoch": "1465344000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769212800000",
    "number": "1316396583",
    "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": "617-732-7510",
            "fax_number": "617-277-9015"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "75 FRANCIS ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021156110",
            "telephone_number": "617-732-5500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "Massachusetts General Hospital",
            "address_2": "55 Fruit St.",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "02114",
            "country_code": "US",
            "telephone_number": "617-726-2967",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SUBTELNY",
        "first_name": "ALEXANDER",
        "middle_name": "O",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-06-08",
        "last_updated": "2026-01-24",
        "certification_date": "2026-01-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0101X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology",
            "state": "MA",
            "license": "278129",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Anatomic Pathology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Anatomic Pathology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 24, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.