Sean O'Reilly, M.D.

Primary specialty

Pulmonary Disease PhysicianTaxonomy code 207RP1001X

License

219985 Issued in MA

Practice address

55 Fogg Rd
South Weymouth, MA 02190-2432

Phone

(781) 624-8000

NPI assigned

Jul 10, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 5

Addresses

Other identifiers 1

Electronic endpoints 1

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

Internal Medicine

Education

University of Massachusetts Medical School, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

South Shore Medical Center, Inc.Group PAC ID 3678487444, 174 clinicians

Coastal Medical AssociatesGroup PAC ID 7113029257, 443 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• South Shore Hospital Hospital, South Weymouth, MA, CCN 220100
• Brigham and Women'S Hospital Hospital, Boston, MA, CCN 220110

Merit-based Incentive Payment System (MIPS)

Final score

72.58 of 100Reported as group

Quality

58.14

Promoting interoperability

74

Improvement activities

40

Cost

72.13

Merit-based Incentive Payment System (MIPS)

Final score

86.65 of 100Reported as group

Quality

88.12

Promoting interoperability

71

Improvement activities

40

Cost

77.69

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.

• Coastal Medical Associates

  • Anesthesiology Physician
  • Weymouth, MA
  • NPI 1932175684
  Medicare reassignment Care Compare group NPD
• South Shore Medical Center, Inc.

  • Internal Medicine Physician
  • Norwell, MA
  • NPI 1669411856
  Medicare reassignment Care Compare group NPD
• South Shore Hospital Inc.

  • General Acute Care Hospital
  • South Weymouth, MA
  • NPI 1134227606
  NPD (past)
• Martha Jefferson Hospital

  • Endoscopy Clinic/Center
  • Charlottesville, VA
  • NPI 1942189022
  NPD (past)

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
• 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": "1152489600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758931200000",
    "number": "1871527879",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FOGG RD",
            "city": "SOUTH WEYMOUTH",
            "state": "MA",
            "postal_code": "021902432"
        },
        {
            "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": "781-624-8000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "500 Martha Jefferson Dr Fl 5",
            "address_purpose": "LOCATION",
            "city": "Charlottesville",
            "state": "VA",
            "postal_code": "22911",
            "country_code": "US",
            "telephone_number": "434-654-5260",
            "fax_number": "434-654-5261",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "280 Exempla Cir",
            "address_purpose": "LOCATION",
            "city": "Lafayette",
            "state": "CO",
            "postal_code": "800263370",
            "country_code": "US",
            "telephone_number": "303-338-4545",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'REILLY",
        "first_name": "SEAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-10",
        "last_updated": "2025-09-27",
        "certification_date": "2025-09-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "MA",
            "license": "219985",
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "VA",
            "license": "0101257888",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "VA",
            "license": "0101257888",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CO",
            "license": "DR.0061516",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "VA",
            "license": "0101257888",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "KAISER COMMERCIAL NUMBER",
            "identifier": "028959",
            "state": "CO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "SOAP",
            "endpointTypeDescription": "SOAP URL",
            "endpoint": "https://careepiceast.kp.org:14430/Interconnect-prodcom/wcf/epic.community.hie/xcpdrespondinggateways",
            "affiliation": "N",
            "endpointDescription": "Carequality",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "280 Exempla Cir",
            "city": "Lafayette",
            "state": "CO",
            "country_code": "US",
            "postal_code": "800263370",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Catherine A. O'Brien, R.D.
• Karen E O'Brien, M.D.
• Michele Lee O'Brien, STUDENT
• Luke M O'Connell, MD
• Taryn O'Neil
• Nkiru Sofia Ogbuefi
• Olden'S Pharmacy Inc.
• Andrea Oliver, PA-C
• James Onyeukwu
• Stephanie Louise Oppel, PA-C

• Pulmonary Disease Physician in South Weymouth, MA
• Providers in South Weymouth, MA by specialty
• Pulmonary Disease Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 27, 2025; 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.