John L Mahoney, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

58715 Issued in MA

Practice address

55 Fogg Rd
South Weymouth, MA 02190-2432

Phone

(781) 337-7011

NPI assigned

Jan 9, 2006

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

Diagnostic Radiology

Education

Georgetown University School of Medicine, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

South Shore Radiological Associates IncGroup PAC ID 6507838810, 35 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• South Shore Hospital Hospital, South Weymouth, MA, CCN 220100
• Dana-Farber Cancer Institute Hospital, Boston, MA, CCN 220162
• Brigham and Women's Hospital Hospital, Boston, MA, CCN 220110
• Beth Israel Deaconess Hospital - Milton Hospital, Milton, MA, CCN 220108

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• South Shore Radiological Associates, Inc.

  • Diagnostic Radiology Physician
  • South Weymouth, MA
  • NPI 1518984319
  Medicare reassignment Care Compare group NPD
• Harbor Medical Associates, Inc.

  • Cardiovascular Disease Physician
  • South Weymouth, MA
  • NPI 1124079561
  Medicare reassignment NPD
• Harbor Medical Associates, Inc.

  dba Physicians Diagnostics

  • Clinical Medical Laboratory
  • South Weymouth, MA
  • NPI 1396942926
  NPD

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

• Beth Israel Deaconess Hospital Milton Inc

  • General Acute Care Hospital
  • Milton, MA
  • NPI 1174618953
  Care Compare affiliation
• Brigham & Womens Hospital, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1790717650
  Care Compare affiliation
• Dana-Farber Cancer Institute, Inc.

  dba Dana-Farber Cancer Institute

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1851333686
  Care Compare affiliation
• South Shore Hospital Inc.

  • General Acute Care Hospital
  • South Weymouth, MA
  • NPI 1134227606
  Care Compare affiliation

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

{
    "created_epoch": "1136764800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770940800000",
    "number": "1821076845",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 200694",
            "city": "PITTSBURGH",
            "state": "PA",
            "postal_code": "152510694",
            "telephone_number": "833-324-6904",
            "fax_number": "302-440-5783"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FOGG RD",
            "city": "SOUTH WEYMOUTH",
            "state": "MA",
            "postal_code": "021902432",
            "telephone_number": "781-337-7011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAHONEY",
        "first_name": "JOHN",
        "middle_name": "L",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-09",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "58715",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Macalpine Eye Care, P C
• Bill Macarthur
• Joan N Macarthur, RPH
• Keith Mackay Jr., PA-C
• Sankirth Madabhushi
• Nicole Mary Mahoney, PA-C
• Sanan Mahrokhian
• Shail Maingi, MD
• Farah Malary, PA-C
• Swati Malik

• Diagnostic Radiology Physician in South Weymouth, MA
• Providers in South Weymouth, MA by specialty
• Diagnostic Radiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 13, 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.