HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / TX

JAMES K ONEILL, MD

INTERVENTIONAL CARDIOLOGY

Medical school: BAYLOR COLLEGE OF MEDICINE

Graduated: 2011

Also: CARDIOVASCULAR DISEASE (CARDIOLOGY)

NPI: 1770878670

Practice Locations (6)

MEMORIAL HERMANN MEDICAL GROUP

1140 BUSINESS CTR DR, SUITE 500

HOUSTON, TX 770432744

7134653535

MEMORIAL HERMANN MEDICAL GROUP

6411 FANNIN ST

HOUSTON, TX 770301501

7137046996

MEMORIAL HERMANN MEDICAL GROUP

915 GESSNER RD, SUITE 100

HOUSTON, TX 770242537

7132422222

MEMORIAL HERMANN MEDICAL GROUP

921 GESSNER RD

HOUSTON, TX 770242501

MEMORIAL HERMANN MEDICAL GROUP

925 GESSNER RD, SUITE 400

HOUSTON, TX 770242547

7134670605

MEMORIAL HERMANN MEDICAL GROUP

925 GESSNER RD, SUITE 630

HOUSTON, TX 770242553

7134653535

Source: CMS National Downloadable File, September 2026.