


Dr. Mary Callahan, DO
Dr. Mary Callahan, DO is a cardiologist in Falmouth, MA and has over 30 years of experience in the medical field. She graduated from University of New England College of Osteopathic Medicine in 1992. She is affiliated with medical facilities Falmouth Hospital and Cape Cod Hospital. She is accepting new patients and telehealth appointments.
The Cardiovascular Specialists
25 N Main St Falmouth, MA 02540Hospital Highlight
Dr. Callahan is affiliated with Cape Cod Hospital Hyannis, a highly rated and top awarded hospital for cardiology.
At a Glance
- Area of Expertise
- Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
- Practices at Top Hospital
- Practices at Highly Recommended Hospital

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Dr. Callahan's Reviews
Likelihood to recommend Dr. Callahan
3.4
5 Star | 55% | 55% |
4 Star | 0% | 0% |
3 Star | 9% | 9% |
2 Star | 0% | 0% |
1 Star | 36% | 36% |
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How was your experience with Dr. Callahan?Overall Patient Satisfaction
Likelihood of recommending Dr. Callahan to family and friends is 3.3636363 out of 5
About Me
care philosophy
I believe that all patients are important and should be treated as if they were members of your family. www.capehearthealth.comCardiology
Internal Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Albany Medical College
Fellowship Hospital, 1999Roger Williams Hospital
Residency Hospital, 1996Roger Williams Medical Center
Residency Hospital, 1996Roger Williams Hosp-brown University
Internship Hospital, 1993University Of New England College Of Osteopathic Medicine
Medical School, 1992University Of New Hampshire, Master Of Science In Animal And Nutritional Sciences
1989University Of New Hampshire, Durham Nh
Undergraduate School, 1983
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkLocations
The Cardiovascular Specialists
Practice
Affiliated Hospitals
- Recipient of 4
hospital awardsCoronary Intervention Excellence Award™ (2024)
Superior clinical outcomes in coronary intervention procedures (angioplasty with stent)
View all awardsAmerica’s 100 Best Hospitals for Coronary Intervention Award™ (2023)
Superior clinical outcomes in coronary intervention procedures (angioplasty with stent)
View all patient feedbackHow patients felt about the care they received at this hospital.
88%Patients said they were given information about recovering at home4% higher than the national average
78%Patients said that doctors always listened to them and explained things well2% higher than the national average
- Recipient of 2
hospital awardsView all awardsPatient Safety Excellence Award™ (2025, 2024)
Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications
View all patient feedbackHow patients felt about the care they received at this hospital.
89%Patients said they were given information about recovering at home5% higher than the national average
77%Patients said that doctors always listened to them and explained things well1% higher than the national average
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Providers shown based on Dr. Callahan's location and specialty. Show more Cardiologists.
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