Michelle Susan McMahon-Downer, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

231988 Issued in MA

Practice address

115 Lincoln St
Framingham, MA 01702-6358

Phone

(508) 383-1104

Fax

(508) 383-1138

NPI assigned

Feb 22, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Michelle McMahon Former name

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

Emergency Medicine

Education

Other, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Emergency Physician Associates of Massachusetts PCGroup PAC ID 4981069580, 44 clinicians

Coastal Medical AssociatesGroup PAC ID 7113029257, 443 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Emerson Hospital - Hospital, W Concord, MA, CCN 220084
• South Shore Hospital Hospital, South Weymouth, MA, CCN 220100
• Metrowest Medical Center Hospital, Framingham, MA, CCN 220175

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

• Coastal Medical Associates

  • Anesthesiology Physician
  • Weymouth, MA
  • NPI 1932175684
  Medicare reassignment Care Compare group NPD
• Emergency Physician Associates of Massachusetts PC

  • Emergency Medicine Physician
  • Worcester, MA
  • NPI 1730885252
  Medicare reassignment Care Compare group NPD
• Emerson Emergency Physicians LLC

  • Emergency Medicine Physician
  • Concord, MA
  • NPI 1972742542
  Medicare reassignment NPD

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

• Emerson Hospital

  • General Acute Care Hospital
  • Concord, MA
  • NPI 1922103357
  Care Compare affiliation
• South Shore Hospital Inc.

  • General Acute Care Hospital
  • South Weymouth, MA
  • NPI 1134227606
  Care Compare affiliation
• VHS Acquisition Subsidiary Number 9 Inc

  • General Acute Care Hospital
  • Framingham, MA
  • NPI 1740252592
  Care Compare affiliation

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

{
    "created_epoch": "1172102400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1720113632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "115 LINCOLN STREET",
            "address_2": "METROWEST EMERGENCY PHYSICIANS",
            "city": "FROMINGHAM",
            "state": "MA",
            "postal_code": "01702",
            "telephone_number": "508-383-1104",
            "fax_number": "508-383-1138"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "115 LINCOLN ST",
            "city": "FRAMINGHAM",
            "state": "MA",
            "postal_code": "017026358",
            "telephone_number": "508-383-1104",
            "fax_number": "508-383-1138"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMAHON-DOWNER",
        "first_name": "MICHELLE",
        "middle_name": "SUSAN",
        "name_prefix": "Mrs.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-22",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "RI",
            "license": "12264",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MA",
            "license": "231988",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MICHELLE",
            "last_name": "MCMAHON",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Casey Lee McLaughlin
• Deborah McLaughlin
• Rosemary T McLaughlin
• Christine Elizabeth McLennan, R.D.
• Devin McLeod, LICSW
• Suzanne Davis McMahon, LICSW
• Deborah McMakin
• Elena McNally, MA,MFT
• Isabella McNamara, MD
• Timothy Joseph McNamara

• Emergency Medicine Physician in Framingham, MA
• Providers in Framingham, MA by specialty
• Emergency Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 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.