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A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Kevin Callahan:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (8)

The overall average patient rating of Dr. Kevin Callahan is Good. Dr. Callahan has been reviewed by 15 patients who have provided 8 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.3
Promptness 4.2
Courteous Staff 4.1
Accurate Diagnosis 4.2
Bedside Manner 4.3
Spends Time with Me 4.2
Follows Up After Visit 4.2

Specialties & Research

  • He has special expertise in 12 areas:
  • Acute Myeloid Leukemia
  • Cancer
  • Chemotherapy
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Leukemia
  • Lymphoma
  • Melanoma
  • Multiple Myeloma (Cancer of Plasma Cells)
  • Polycythemia Vera

Education & Awards

Dr. Callahan graduated from University of New England, Biddeford.


Dr. Callahan has 28 hospital affiliations:

  • Kennedy University Hospital – Washington Township 
  • Cooper University Hospital 


  • English

> > > > Dr. Kevin Callahan, DO

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Additional Information
Dr. Kevin Joseph Callahan DO is a male Hematologist, has 25 years of experience and practices in Hematology, Hematology & Oncology, and Medical Oncology.
Where does Dr. Kevin J. Callahan practice?
Dr. Kevin Callahan has 1 office location.
Dr. Kevin Callahan practices Hematology, Hematology & Oncology, and Medical Oncology near Voorhees, NJ.
See Voorhees Hematologists and Voorhees Oncologists.