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Walter Koltun, MD, Colon & Rectal Surgery, Hershey, PA

Walter A Koltun MD FACS, FASCRS

Colon & Rectal Surgery•Hershey, PA

Chief of Colorectal Surgery

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  • 500 University DrHershey, PA 17033

  • Phone+1 800-233-4082

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Summary

  • Walter Koltun, MD, is a colon and rectal surgeon based in Hershey, PA, specializing in conditions such as diverticulitis, inflammatory bowel disease, ulcerative colitis, Crohn's disease, and hemorrhoids. He completed his education at prestigious institutions, including Harvard Medical School and Massachusetts Institute of Technology, followed by a residency at Brigham and Women's Hospital and a fellowship at Lahey Clinic. Dr. Koltun has held several leadership roles at Penn State Milton S. Hershey Medical Center since 1990, including Director and Chief positions. He has contributed extensively to medical literature with publications in notable journals and has participated in clinical trials. He has also received several CMS Meaningful Use Stage 1 Certifications from Cerner Corporation.

Education & Training

  • Lahey Clinic
    Lahey ClinicFellowship, Colon and Rectal Surgery, 1989 - 1990
  • Mass General Brigham/Brigham and Women's Hospital
    Mass General Brigham/Brigham and Women's HospitalResidency, Surgery, 1981 - 1989
  • Harvard Medical School
    Harvard Medical SchoolClass of 1981
  • Massachusetts Institute of Technology
    Massachusetts Institute of TechnologyB.S., 1977

Certifications & Licensure

  • PA State Medical License
    PA State Medical License 1990 - 2026
  • Colon & Rectal Surgery
    American Board of Colon and Rectal Surgery Colon & Rectal Surgery
  • colon and rectal surgery
    American Board of Colon and Rectal Surgerycolon and rectal surgery

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification Cerner Patient Portal and Powerchart, Cerner Corporation, 2013, 2015-2016
  • CMS Meaningful Use Stage 1 Certification PowerChart (Clinical), Cerner Corporation, 2013, 2015-2016
  • CMS Meaningful Use Stage 1 Certification PowerChart, Cerner Healthe, IQHealth, HealthSentry and P2 Sentinel, Cerner Corporation, 2013, 2015-2016

Clinical Trials

Publications & Presentations

PubMed

Journal Articles

  • Response to the Letter to the Editor from Dai Et Al, Regarding “Smoking and the Risk of Pouchitis in Ulcerative Colitis Patients with Ileal Pouch Anal Anastomosis”  
    Walter Koltun, Emmanuelle D Williams, Inflammatory Bowel Diseases
  • Smoking and the Risk of Pouchitis in Ulcerative Colitis Patients with Ileal Pouch-Anal Anastomosis  
    Walter Koltun, Emmanuelle D Williams, Inflammatory Bowel Diseases
  • IBD LIVE Case Series: Case 9: Do Race and Extraintestinal Manifestations Affect Treatment of Severe Crohn’s Colitis?  
    David J Keljo, Joel R Rosh, Samir A Shah, Myron H Brand, Brian K Theisen, Hans H Herfarth, Walter A Koltun, Julia B Greer, Corey A Siegel, Raymond K Cross, Peter L Davis, Inflammatory Bowel Diseases

Books/Book Chapters

  • Current Therapy of Colon and Rectal Surgery 
    Chapter: Colorectal Surgery in the High Risk Patient 
    Koltun WA and Connelly TM2014
  • Advanced Therapy in IBD: Volume 1: IBD and Ulcerative Colitis 
    Chapter: Brooke's Ileostomy 
    Page 429 - 432Sehgal R and Koltun WAEditors: Bayless/Hanauer.Edition 3rd,2011
  • ASCRS Textbook of Colon and Rectal Surgery 
    Chapter: Diagnosis and Evaluation 
    Koltun WASpringer Verlag2004

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

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

Press Mentions

  • The Invisible Complication: Experts at ACS Summit Address Surgical Adhesions and Their Hidden Costs
    The Invisible Complication: Experts at ACS Summit Address Surgical Adhesions and Their Hidden CostsFebruary 26th, 2025
  • Resources for IBD Healthcare Professionals: 2019 Novel Coronavirus (COVID-19)
    Resources for IBD Healthcare Professionals: 2019 Novel Coronavirus (COVID-19)September 23rd, 2020
  • Early Colon Cancer Screening Advised for Some
    Early Colon Cancer Screening Advised for SomeMarch 12th, 2018

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