James Kennedy O'Neill, M.D.

Primary specialty

Interventional Cardiology PhysicianTaxonomy code 207RI0011X

License

Q3933 Issued in TX

Practice address

925 Gessner Rd Ste 630
Houston, TX 77024-2553

Phone

(713) 465-3535

Fax

(713) 465-9735

NPI assigned

Jun 20, 2011

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

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

Interventional CardiologyAlso: Cardiovascular Disease (Cardiology)

Education

Baylor College of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Memorial Hermann Medical GroupGroup PAC ID 7012008360, 760 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hermann Memorial City Hospital Hospital, Houston, TX, CCN 450610
• Memorial Hermann Katy Hospital Hospital, Katy, TX, CCN 450847
• Memorial Hermann - Texas Medical Center Hospital, Houston, TX, CCN 450068

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: joneill66471@memorialhermann.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.

• Memorial Hermann Medical Group

  • Family Medicine Physician
  • Fulshear, TX
  • NPI 1003985102

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Memorial Hermann Medical Group

  • Family Medicine Physician
  • Houston, TX
  • NPI 1982099255
  NPD

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

• Memorial Hermann Health System

  • Physiological Laboratory
  • Houston, TX
  • NPI 1154595155

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Houston, TX
  • NPI 1275568032

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • Portable X-ray and/or Other Portable Diagnostic Imaging Supplier
  • Houston, TX
  • NPI 1437189115

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Pasadena, TX
  • NPI 1437323482

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Houston, TX
  • NPI 1588838593

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Houston, TX
  • NPI 1639343635

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1740233782
  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Sugar Land, TX
  • NPI 1841465697

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Katy, TX
  • NPI 1932152337
  Care Compare affiliation
• Memorial Hermann Health System

  • Physiological Laboratory
  • Houston, TX
  • NPI 1952575904

  Hospital

  Care Compare affiliation
• Memorial Hermann Health System

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1982666111
  Care Compare affiliation

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

{
    "created_epoch": "1308528000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1770878670",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "925 GESSNER RD",
            "address_2": "STE 630",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770242553",
            "telephone_number": "832-355-6676"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "925 GESSNER RD STE 630",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770242553",
            "telephone_number": "713-465-3535",
            "fax_number": "713-465-9735"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "6720 Bertner Ave # Mc1-133",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770302604",
            "country_code": "US",
            "telephone_number": "832-355-6676",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'NEILL",
        "first_name": "JAMES",
        "middle_name": "KENNEDY",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-06-20",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2011016934",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "Q3933",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "TX",
            "license": "Q3933",
            "primary": false
        },
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "TX",
            "license": "Q3933",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gregory J O'Neil, M.D.
• Sheaundra O'Neil, LPC
• Colleen Alice O'Neill, MD
• Daniel Benedict O'Neill, M.D.
• Hannah O'Neill
• John D O'Neill, OD
• Michelle M O'Neill, DDS
• Peggy Ann O'Neill, D.D.S.
• Rebecca O'Neill, MD
• Rio O'Neill

• Interventional Cardiology Physician in Houston, TX
• Providers in Houston, TX by specialty
• Interventional Cardiology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 12, 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.