Distinguished in Diverticular Disease

Dr. Walter Koltun

Colorectal Surgery
The Milton S. Hershey Medical Center
500 University Dr, 
Hershey, PA 
Distinguished in Diverticular Disease
The Milton S. Hershey Medical Center
500 University Dr, 
Hershey, PA 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Walter Koltun is a Colorectal Surgeon in Hershey, Pennsylvania. Dr. Koltun is rated as a Distinguished provider by MediFind in the treatment of Diverticular Disease. His top areas of expertise are Viral Gastroenteritis, Diverticular Disease, Ulcerative Colitis, Ileostomy, and Colostomy.

His clinical research consists of co-authoring 114 peer reviewed articles and participating in 1 clinical trial. MediFind looks at clinical research from the past 15 years. In particular, he has co-authored 17 articles in the study of Diverticular Disease.

Specialties
Colorectal Surgery
Licenses
Colon & Rectal Surgery in PA
Hospital Affiliations
Milton S Hershey Medical Center
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Cigna
  • EPO
  • HMO
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO

Locations

The Milton S. Hershey Medical Center
500 University Dr, Hershey, PA 17033
Call: 717-531-8887

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

1 Clinical Trials

Short Versus Long Interval to Ileostomy Reversal After Ileal Pouch Surgery for Ulcerative Colitis
Short Versus Long Interval to Ileostomy Reversal After Ileal Pouch Surgery for Ulcerative Colitis
Enrollment Status: Terminated
Publish Date: March 04, 2022
Intervention Type: Procedure
Study Phase: Not Applicable

114 Total Publications

Loss of STIM2, but not of STIM1, drives colorectal cancer metastasis through metabolic reprogramming and the ATF4 ER stress pathway.
Loss of STIM2, but not of STIM1, drives colorectal cancer metastasis through metabolic reprogramming and the ATF4 ER stress pathway.
Journal: Science signaling
Published: June 24, 2025
View All 114 Publications
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VIEW MORE DIVERTICULAR DISEASE DOCTORS

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Koltun's expertise for a condition
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    • Distinguished
    • Colitis
      Dr. Koltun is
      Distinguished
      . Learn about Colitis.
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    • Crohn's Disease
      Dr. Koltun is
      Distinguished
      . Learn about Crohn's Disease.
      See more Crohn's Disease experts
    • Diverticular Disease
      Dr. Koltun is
      Distinguished
      . Learn about Diverticular Disease.
      See more Diverticular Disease experts
    • Hemorrhagic Proctocolitis
      Dr. Koltun is
      Distinguished
      . Learn about Hemorrhagic Proctocolitis.
      See more Hemorrhagic Proctocolitis experts
    • Ulcerative Colitis
      Dr. Koltun is
      Distinguished
      . Learn about Ulcerative Colitis.
      See more Ulcerative Colitis experts
    • Viral Gastroenteritis
      Dr. Koltun is
      Distinguished
      . Learn about Viral Gastroenteritis.
      See more Viral Gastroenteritis experts
    • Advanced
    • Colorectal Cancer
      Dr. Koltun is
      Advanced
      . Learn about Colorectal Cancer.
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    • Colostomy
      Dr. Koltun is
      Advanced
      . Learn about Colostomy.
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    • Familial Adenomatous Polyposis
      Dr. Koltun is
      Advanced
      . Learn about Familial Adenomatous Polyposis.
      See more Familial Adenomatous Polyposis experts
    • Familial Colorectal Cancer
      Dr. Koltun is
      Advanced
      . Learn about Familial Colorectal Cancer.
      See more Familial Colorectal Cancer experts
    • Ileostomy
      Dr. Koltun is
      Advanced
      . Learn about Ileostomy.
      See more Ileostomy experts
    • Lynch Syndrome
      Dr. Koltun is
      Advanced
      . Learn about Lynch Syndrome.
      See more Lynch Syndrome experts
    View All 7 Advanced Conditions
    • Experienced
    • Anal Cancer
      Dr. Koltun is
      Experienced
      . Learn about Anal Cancer.
      See more Anal Cancer experts
    • Colonoscopy
      Dr. Koltun is
      Experienced
      . Learn about Colonoscopy.
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    • Endoscopy
      Dr. Koltun is
      Experienced
      . Learn about Endoscopy.
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    • Gastroesophageal Junction Cancer
      Dr. Koltun is
      Experienced
      . Learn about Gastroesophageal Junction Cancer.
      See more Gastroesophageal Junction Cancer experts
    • Gastrointestinal Fistula
      Dr. Koltun is
      Experienced
      . Learn about Gastrointestinal Fistula.
      See more Gastrointestinal Fistula experts
    • Hernia
      Dr. Koltun is
      Experienced
      . Learn about Hernia.
      See more Hernia experts
    View All 12 Experienced Conditions
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