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Summary
Dr. Mary Callahan treats acid reflux, cardiac arrhythmia, and atrial fibrillation, and performs electrocardiograms. She practices cardiology and internal medicine and has 34 years of experience. Dr. Callahan is affiliated with McLaren Lapeer Region, Boston Medical Center, and McLaren Thumb Region Hospital. She completed her residency at Albany Medical Center and earned her medical degree from the University of New England College of Osteopathic Medicine. She sees patients in Boston and Sandwich, Massachusetts.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 34 years of experience
- speaks English
- Albany Medical Center
- 2 specialties
- 16 areas of expertise
- 3 hospital affiliations
- 2 office locations
- Female
Office Locations
Dr. Mary B Callahan has 2 locationsCardiovascular Associates Of Sandwich Llc
68A Route 6ASandwich, MA 02563 Tel: (774) 413-5457
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  | |
| Dr. Mary B Callahan, DO | Dr. Dana Weisshaar, MD | Robert L Deresiewicz | Scyrus Cartwright |
| Cardiology | Cardiology | Infectious Disease | Emergency Medicine |
| Accepts New Patients | Accepts New Patients | ||
| 34 Years of Experience | 37 Years of Experience | 43 Years of Experience | 44 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | ||
| Boston , MA | Cambridge , MA | Boston , MA | Boston , MA |
| Med School: University Of New England College Of Osteopathic Medicine | Med School: University of Toledo Medical School | Med School: Icahn School Of Medicine At Mount Sinai | Med School: Yale University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mary B Callahan
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Mary B Callahan has the following 2 specialties
Specialty Expertise
Dr. Mary B Callahan has the following 16 areas of expertise
Certifications, License, & Education
34 Years Experience
Dr. Mary B Callahan holds an expired medical license in the state of Massachusetts.
Medical License
Doctor Of Osteopathy with an expired medical license in the state of Massachusetts that expired in 2026.
Education & Training
Residency
Completed their residency at Albany Medical Center.
Medical School
Graduated from University Of New England College Of Osteopathic Medicine in 1992.
NPI Number
Dr. Callahan's NPI number is 1518968882.
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Frequently Asked Questions
- Is Dr. Mary Callahan accepting new patients?
- Dr. Mary Callahan is accepting new patients on Vitals. View Dr. Mary Callahan's profile on Vitals to make an appointment.
- Does Dr. Mary Callahan accept virtual/telehealth appointments?
- Dr. Mary Callahan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- How can I make an appointment with Dr. Mary Callahan?
- You can find contact information for Dr. Mary Callahan here on Vitals.
- What languages does Dr. Mary Callahan speak?
- Dr. Mary Callahan speaks English.
- Does Dr. Mary Callahan accept my insurance?
- You can see the insurance plans that Dr. Mary Callahan accepts on their Vitals profile.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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