Dr. Mary B Callahan DO Cardiologist

Dr. Mary Callahan is a cardiologist in Sandwich, Massachusetts. She is affiliated with multiple hospitals in the area, including Beth Israel Deaconess Medical Center and Cape Cod Hospital. She received her medical degree from University of New England College of Osteopathic Medicine and has been in practice for 22 years. Dr. Callahan accepts several types of health insurance, listed below. She is one of 114 doctors at Beth Israel Deaconess Medical Center and one of 15 at Cape Cod Hospital who specialize in Cardiovascular Disease.

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Office Location

See Contact Information

Specialty & Clinical Interests

Cardiologist: General Obstetrics & Gynecology

Hospital Affiliation

Beth Israel Deaconess Medical Center
High performing in Cardiology & Heart Surgery

Cape Cod Hospital

Education & Medical Training

Roger Williams Hospital
Residency, Internal Medicine, 1993 - 1996

Albany Medical Center
Fellowship, Cardiovascular Disease, 1996 - 1999

University of New England College of Osteopathic Medicine
Class of 1992

Certifications & Licensure

American Board of Pediatrics
Certified 21 years in Pediatrics

American Board of Pediatrics
Certified 8 years in Developmental-Behavioral Pediatrics

IN State Medical License
Active through 2015

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • Anthem HealthKeepers HMO/POS
  • Anthem KeyCare PPO
  • BCBS Blue Card PPO
  • CIGNA Open Access
  • Coventry Carelink Health Plans PPO
  • Coventry Virginia - HMO
  • First Health PPO
  • Great West PPO
  • Humana ChoiceCare Network PPO
  • Multiplan PHCS PPO
  • Multiplan PPO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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