John Alexander Duffy, MD

Primary specialty

Pediatric Sports Medicine PhysicianTaxonomy code 2080S0010X

License

MT235940 Issued in PA

Practice address

3401 Civic Center Blvd
Philadelphia, PA 19104-4319

Phone

(215) 590-1527

NPI assigned

Mar 28, 2018

Sex

Male

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

• Dr. Alec Duffy Other name

Medicare fee-for-service enrollment

Enrolled in MN

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

Internal Medicine

Education

New York Medical College, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Fairview Health ServicesGroup PAC ID 1951213057, 677 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• M Health Fairview University of MN Medical Center Hospital, Minneapolis, MN, CCN 240080

Merit-based Incentive Payment System (MIPS)

Final score

96.44 of 100Reported as group

Quality

82.65

Promoting interoperability

100

Improvement activities

40

Cost

77.21

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jduffy435768@fairview.direct-ci.com

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.

• Fairview Health Services

  • Emergency Medicine Physician
  • Minneapolis, MN
  • NPI 1811077175

  Hospitalist

  Medicare reassignment Care Compare group NPD
• Fairview Express Care

  dba M Health Fairview Recovery Clinic

  • Multi-Specialty Clinic/Center
  • Minneapolis, MN
  • NPI 1053952606
  Medicare reassignment NPD
• Healtheast Medical Research Institute

  dba HealthEast Vadnais Heights Clinic

  • Clinic/Center
  • Vadnais Heights, MN
  • NPI 1639125503
  Medicare reassignment NPD
• Fairview Express Care

  • General Practice Physician
  • Edina, MN
  • NPI 1831707207
  NPD
• Fairview Express Care

  • General Practice Physician
  • Minneapolis, MN
  • NPI 1871101238
  NPD
• Fairview Health Services

  dba Fairview Hospital University

  • General Acute Care Hospital
  • Minneapolis, MN
  • NPI 1013994359
  NPD
• Fairview Health Services

  dba Fairview Emergency Medical Services

  • Land Ambulance
  • Saint Paul, MN
  • NPI 1710212485
  NPD
• Healtheast Medical Research Institute

  dba HealthEast Professional Services

  • Internal Medicine Physician
  • Saint Paul, MN
  • NPI 1508191552
  NPD

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

• Fairview Health Services

  dba Fairview Hospital University

  • General Acute Care Hospital
  • Minneapolis, MN
  • NPI 1013994359
  Care Compare affiliation
• Fairview Health Services

  dba Fairview Diagnostic Laboratory

  • General Acute Care Hospital
  • Minneapolis, MN
  • NPI 1316008212
  Care Compare affiliation
• Fairview Health Services

  dba University of MN Medical Center, Fairview Transitional Care

  • Skilled Nursing Facility
  • Minneapolis, MN
  • NPI 1669459913

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1522195200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783209600000",
    "number": "1861997025",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3401 CIVIC CENTER BLVD",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044319"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3401 CIVIC CENTER BLVD",
            "city": "PHILADELPHIA",
            "state": "PA",
            "postal_code": "191044319",
            "telephone_number": "215-590-1527"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUFFY",
        "first_name": "JOHN",
        "middle_name": "ALEXANDER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-28",
        "last_updated": "2026-07-05",
        "certification_date": "2026-07-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0010X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sports Medicine",
            "state": "PA",
            "license": "MT235940",
            "primary": false
        },
        {
            "code": "2080S0010X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Sports Medicine",
            "state": "PA",
            "license": "MT235940",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ALEC",
            "last_name": "DUFFY",
            "prefix": "DR.",
            "credential": "MD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• David M Duffy, OD
• Emily Duffy, LCSW
• Emma Duffy, PA-C
• Frank Nicholas Duffy, RD
• Ilona Kane Duffy, M.D.
• Kathleen Mary Duffy, MSS, LSW
• Kellie Duffy, PA-C
• Kevin Duffy Jr., MD
• Kevin Joseph Duffy, M.D.
• Kimberly Ann Duffy, FNP-BC

• Pediatric Sports Medicine Physician in Philadelphia, PA
• Providers in Philadelphia, PA by specialty
• Pediatric Sports Medicine Physician in Pennsylvania

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 5, 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.