Dr. Callahan Butler is on Doximity
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Office
372 chandler st
Worcester, MA 01602Phone+1 508-767-3992Fax+1 508-767-3999
Education & Training
UMass Chan Medical SchoolResidency, Pediatrics, 1982 - 1985- University of Massachusetts Medical SchoolClass of 1982
Certifications & Licensure
MA State Medical License 1985 - 2019- American Board of Pediatrics Pediatrics
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