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  • Surgery, Diagnostic Radiology, Vascular Surgery
  • Accepting new patients
  • 42 years of experience
  • Emerson Hospital General Surgery 133 Old Road To 9 Acre Cor, Concord, MA 01742
  • (978) 287-3355

Brief Intro

Dr. Callahan graduated from the Tufts University School of Medicine in 1983. He works in Concord, MA and 2 other locations and specializes in Surgery, Diagnostic Radiology and Vascular Surgery. Dr. Callahan is affiliated with Emerson Hospital.

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Education Background

RESIDENCY

St Elizabeths Medical Center

MEDICAL SCHOOL

Tufts University School Of Medicine - 1983

Languages Spoken

  • English

Location & Hours

  • Emerson Hospital General Surgery
  • 133 Old Road To 9 Acre Cor, Concord, MA 01742
  • Mon:8:00 am - 5:00 pm
    Tue:8:00 am - 5:00 pm
    Wed:8:00 am - 5:00 pm
    Thu:8:00 am - 5:00 pm
    Fri:8:00 am - 5:00 pm
    Sat:8:00 am - 5:00 pm
    Sun:8:00 am - 5:00 pm

Specialties Treated

  • Surgery
  • Diagnostic Radiology
  • Vascular Surgery

Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Medicare
  • UnitedHealthcare
  • Blue Cross Blue Shield
  • Cancer 19
  • Cardiology, Heart & Vascular Surgery 13
  • Orthopedics 35
  • Neurology & Neurosurgery 20
  • Gastroenterology & GI Surgery 32
  • Pulmonology & Lung Surgery 41
  • Diabetes & Endocrinology 25
  • Children's Hospital 8
  • Urology 35
  • Psychiatry 47
  • Geriatrics 33
  • Rehabilitation 11
  • Obsterics & Gynecology 6
  • Ophthalmology 2
  • Ear, Nose & Throat 6
  • Rheumatology 2
  • Long Term Care 7
  • Maternity Care (Uncomplicated Pregnancy) 15