Dr. William G. O'callaghan graduated from the Univ Coll of Dublin, Nat'l Univ of Ireland, Fac of Med, Dublin, Ireland in 1977. He works in McAllen, TX and specializes in Cardiovascular Disease and Interventional Cardiology. Dr. O'callaghan is affiliated with McAllen Heart Hospital and Rio Grande Regional Hospital. He speaks English and Spanish.
Years in Practice: 37 Years
Languages Spoken: English, Spanish
Medical School: Univ Coll of Dublin, Nat'l Univ of Ireland, Fac of Med, Dublin, Ireland
Graduation Date: 1977
Specialties: Cardiovascular Disease, Interventional Cardiology