Walter Koltun, MD, Colon & Rectal Surgery, Hershey, PA, Penn State Milton S. Hershey Medical Center

WalterAKoltunMDFACS, FASCRS

Colon & Rectal Surgery Hershey, PA

Chief of Colorectal Surgery

See the full profile

Dr. Koltun is on Doximity
As a Doximity member you'll join over a million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. Koltun's full profileAlready have an account?

Office Address

Education & Training

  • Lahey ClinicFellowship
  • Brigham and Women's HospitalBrigham and Women's HospitalResidency
  • Harvard Medical SchoolHarvard Medical SchoolMedicalSchool
  • Massachusetts Institute of TechnologyOtherTraining

Certifications & Licensure

  • PA State Medical LicensePA State Medical License 1990 - 2020
  • American Board of Colon and Rectal Surgery Colon & Rectal Surgery
  • American Board of Surgery Surgery
  • American Board of Colon and Rectal Surgerycolon and rectal surgery

Awards, Honors, & Recognition

  • Regional Top Doctor Castle Connolly, 2014
  • Castle-Connelly Top Doctor 2011
  • Outstanding Mentor Penn State College of Medicine Class of 2008, 2008
  • 11 more in this section...Join now to see the full profile

Clinical Trials

Publications & Presentations

  • Journal Articles
  • Genetic Determinants Associated with Early Age of Diagnosis of IBD  Connelly TM, Berg AS, Harris L, Brinton D, Deiling S, and Koltun WA, Diseases of the Colon and Rectum, 1/1/2015
  • The Cancer "Fear" in IBD Patients: Is It Still Real?  Connelly TM and Koltun WA, J Gastrointest Surg, 1/1/2014
  • The TNFSF15 Gene Single Nucleotide Polymorphism rs7848647 is Associated with Surgical Diverticulitis  Connelly TM, Berg A, Hegarty JP, Harris L, Brinton D, Deiling S, Poritz LS, and Koltun WA, Ann Surg, 1/1/2014
  • 22 more in this section...Join now to see the full profile
  • Title
  • Current Therapy of Colon and Rectal Surgery Chapter: Colorectal Surgery in the High Risk Patient 
    Koltun WA and Connelly TM

    2014
  • Advanced Therapy in IBD: Volume 1: IBD and Ulcerative Colitis Chapter: Brooke's Ileostomy Page 429 - 432
    Sehgal R and Koltun WA
    Editors: Bayless/Hanauer.
    Edition 3rd,2011
  • ASCRS Textbook of Colon and Rectal Surgery Chapter: Diagnosis and Evaluation 
    Koltun WA
    Springer Verlag
    2004
  • 10 more in this section...Join now to see the full profile
  • Abstracts/Posters
  • Is There An Asian Ethnic Disparity in Outcomes Following Colectomy for Diverticulitis? Choi CS, Koltun WA, Hollenbeak CS, Pennsylvania Society of Colon and Rectal Surgeons, Philadelphia, PA, 1/13/2015
  • Surgical Diverticulitis is Not Associated with Defects in Expression of Wound Healing Genes Connelly TM, Berg AS, Harris L, Brinton D, Deiling S, Koltun WA, American Society of Colon and Rectal Surgeons, Hollywood, FL, 1/17/2014
  • A Single Nucleotide Polymorphism in the I14 Gene is Strongly Associated with Susceptibility to Clostridium Difficile Infection in Inflammatory Bowel Disease Patient Connelly TM, Koltun WA, Berg AS, Hegarty JP, Harris L, Deiling S, and Stewart DB, Central Surgical Association, Indianapolis, IN, 1/7/2014
  • 22 more in this section...Join now to see the full profile
  • Lectures
  • The Evolving Role of Genetics in the Surgical Management of IBD Carlisle Regional Medical Center, Carlisle, PA - 1/21/2014
  • Surgery Still Better Than Remicade for IBD Cleveland Clinic Florida, Weston, FL - 1/10/2014
  • Is Diverticulitis a Genetic Disease? Barcelona, Spain - 1/25/2014
  • 22 more in this section...Join now to see the full profile

Press Mentions

  • Walter Koltun, MD, on the Role of Diet in Ileal Pouch–Anal Anastomosis
  • Walter Koltun, MD, on Patient Outcomes of Ileal Pouch–Anal Anastomosis
  • Early Colon Cancer Screening Advised for SomeMarch 12, 2018
  • 4 more in this section...Join now to see the full profile

Professional Memberships

Hospital Affiliations