Sean O'Mahony, MD

Primary specialty

Hospice and Palliative Medicine (Internal Medicine) PhysicianTaxonomy code 207RH0002X

License

W0973 Issued in TX

Practice address

1005 Harborside Dr
FL 6
Galveston, TX 77555-0001

Phone

(409) 772-4950

Fax

(409) 747-0707

NPI assigned

Oct 13, 2006

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

Medicare fee-for-service enrollment

Enrolled in IL, TX2 enrollments

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 2

Specialty

Hospice/Palliative Care

Education

Other, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Utmb Faculty Group PracticeGroup PAC ID 3375456734, 1,083 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Texas Medical Branch Galveston Hospital, Galveston, TX, CCN 450018

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: somahony65101@direct.utmb.edu
• Direct secure messaging: somahony17549@direct.rush.rush-health.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.

• Utmb Faculty Group Practice

  • General Practice Physician
  • Galveston, TX
  • NPI 1942241146

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Rush University Medical Group

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542
  Medicare reassignment NPD

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

• University of Texas Medical Branch at Galveston

  • General Acute Care Hospital
  • Galveston, TX
  • NPI 1548226988
  Care Compare affiliation

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

{
    "created_epoch": "1160697600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757030400000",
    "number": "1467542290",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST STE 10",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123849",
            "telephone_number": "312-942-7030",
            "fax_number": "718-881-6054"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1005 HARBORSIDE DR",
            "address_2": "FL 6",
            "city": "GALVESTON",
            "state": "TX",
            "postal_code": "775550001",
            "telephone_number": "409-772-4950",
            "fax_number": "409-747-0707"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1725 W Harrison St Ste 10",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123849",
            "country_code": "US",
            "telephone_number": "312-942-7030",
            "fax_number": "718-881-6054",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "MMC-Palliative Care Servc",
            "address_2": "3335 Steuben Ave",
            "address_purpose": "LOCATION",
            "city": "Bronx",
            "state": "NY",
            "postal_code": "10467",
            "country_code": "US",
            "telephone_number": "718-920-6378",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'MAHONY",
        "first_name": "SEAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-13",
        "last_updated": "2025-09-05",
        "certification_date": "2025-09-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036126119",
            "primary": false
        },
        {
            "code": "207RH0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hospice and Palliative Medicine",
            "state": "TX",
            "license": "W0973",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Danielle O'Connell
• Elizabeth L O'Daniel
• Alice A O'Donell, MD
• Mary Eleanore O'Keefe, LPC
• Chandler O'Leary, DO
• Oasis Health Clinic PLLC
• Yazan Yahia Obeid, M.D.
• Omar Mohammad Qwaider Obeidat, M.D.
• Ann Obi
• Michael Oboyle, MD

• Hospice and Palliative Medicine (Internal Medicine) Physician in Galveston, TX
• Providers in Galveston, TX by specialty
• Hospice and Palliative Medicine (Internal Medicine) Physician in Texas

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