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500 University DrHershey, PA 17033
Phone+1 800-233-4082
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Summary
- Dr. Walter Koltun is a colorectal surgeon in Hershey, PA and is affiliated with multiple hospitals in the area, including Penn State Milton S. Hershey Medical Center, Penn State Milton S. Hershey Medical Center, Penn State Milton S. Hershey Medical Center, and Penn State Milton S. Hershey Medical Center. He received his medical degree from Harvard Medical School and has been in practice 36 years. He is experienced in diverticulitis, inflammatory bowel disease, colon cancer, and rectal cancer.
Education & Training
Lahey ClinicFellowship, Colon and Rectal Surgery, 1989 - 1990
Mass General Brigham/Brigham and Women's HospitalResidency, Surgery, 1981 - 1989
Harvard Medical SchoolClass of 1981
Massachusetts Institute of TechnologyB.S., 1977
Certifications & Licensure
PA State Medical License 1990 - 2026
American Board of Colon and Rectal Surgery Colon & Rectal Surgery- American Board of Colon and Rectal Surgerycolon and rectal surgery
Awards, Honors, & Recognition
- CMS Meaningful Use Stage Stage 1 Certification Cerner Patient Portal and Powerchart, Cerner Corporation, 2013, 2015-2016
- CMS Meaningful Use Stage Stage 1 Certification PowerChart (Clinical), Cerner Corporation, 2013, 2015-2016
- CMS Meaningful Use Stage Stage 1 Certification PowerChart, Cerner Healthe, IQHealth, HealthSentry and P2 Sentinel, Cerner Corporation, 2013, 2015-2016
Clinical Trials
- Cimzia Versus Mesalamine for Crohn's Recurrence Start of enrollment: 2013 Feb 01
Publications & Presentations
PubMed
- 1 citationsTwenty Years of Disease-Modifying Anti-IBD Drug Use Preceding Colectomy for Refractory IBD-Associated Colitis.Olivia Ziegler, Caroline J Soderman, Alicia C Greene, Michael J Deutsch, Jeffrey S Scow
Diseases of the Colon and Rectum. 2025-08-01 - Apixaban Versus Enoxaparin for Venous Thromboembolism Prophylaxis in Colorectal Surgery.Olivia Ziegler, Alicia C Greene, Olivia Waldron, Patricio B Lynn, Audrey S Kulaylat
The Journal of Surgical Research. 2025-07-01 - Metatranscriptomic analysis of colonic mucosal samples exploring the functional role of active microbial consortia in complicated diverticulitis.Brittney N McMullen, Jeremy Chen See, Samantha Baker, Justin R Wright, Samantha L C Anderson
Microbiology Spectrum. 2025-07-01
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 AnastomosisWalter 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, Alka Goyal, Brian K Theisen, Hans H Herfarth, Walter A Koltun, Kim L Isaacs, Julia B Greer, Corey A Siegel, Ra..., Inflammatory Bowel Diseases
Books/Book Chapters
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 GenesConnelly 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 PatientConnelly TM, Koltun WA, Berg AS, Hegarty JP, Harris L, Deiling S, and Stewart DB, Central Surgical Association, Indianapolis, IN, 1/7/2014
Press Mentions
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)September 23rd, 2020
Early Colon Cancer Screening Advised for SomeMarch 12th, 2018
Professional Memberships
- Fellow
- Fellow
- Member
- Member
- Member
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