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Dr. John Kolnik, DO

Gastroenterology*
Dr. John Kolnik, DO
5.0 (2 Ratings)

Offers telehealth

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Dr. John Kolnik, DO is a Gastroenterology Specialist in Voorhees, NJ.
Dr. John Kolnik, DO
5.0 (2 Ratings)
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Dr. John Kolnik, DO

Gastroenterology*
Voorhees, NJ
Accepting new patients
32 years of experience

Offers telehealth

Dr. John Kolnik, DO is a Gastroenterology Specialist in Voorhees, NJ.
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About

Dr. John Kolnik, DO is a Gastroenterology Specialist in Voorhees, NJ and has 32 years experience. They graduated from PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE. They currently practice at Virtua Gastroenterology - Voorhees at Centennial Blvd and are affiliated with Virtua Mount Holly Hospital. Dr. Kolnik has experience treating conditions like Intestinal Diverticulosis and Hemorrhoids among other conditions at varying frequencies. At present, Dr. Kolnik received an average rating of 5.0/5 from patients and has been reviewed 2 times. Their office accepts new patients and telehealth appointments. Dr. Kolnik is board certified in Gastroenterology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Locations

  1. 1 Virtua Gastroenterology - Voorhees at Centennial Blvd
    502 Centennial Blvd Ste 3, Voorhees, NJ 08043
  2. 2 Virtua Gastroenterology
    239 Hurffville Crosskeys Rd Ste 360, Sewell, NJ 08080
  3. 3 Virtua Gastroenterology - Haddon Heights
    217 White Horse Pike, Haddon Heights, NJ 08035

Experience and Background Check

Intestinal Diverticulosis
Hemorrhoids
Gastroesophageal Reflux Disease (GERD)
Intestinal Diverticulosis
Hemorrhoids
Gastroesophageal Reflux Disease (GERD)
Abdominal Pain
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Barrett's Esophagus
Celiac Disease
Chronic Gastritis
Cirrhosis
Colorectal Polyp
Constipation
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Diffuse Esophageal Spasm
Dysentery
Dysphagia
Enteritis
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Esophagitis
Gallstones
Gas-Bloat Syndrome
Gastritis
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastroparesis
Gastroptosis
Infectious Diarrheal Disease
Inflammatory Bowel Disease
Intestinal Diverticulitis
Intestinal Obstruction
Intestinal Ulcer
Irritable Bowel Syndrome
Nausea
  • View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Peptic Ulcer
Reflux Esophagitis
Ulcerative Colitis
Unexplained Weight Loss
Viral Enteritis
Vitamin_Deficiency
Vomiting Disorders
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Endoscopy (Esophagus, Stomach, Small Intestine)
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Flexible Sigmoidoscopy
Manometry
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Rigid Proctosigmoidoscopy
Acute Gastritis
Alcoholic Cirrhosis
Ascites
  • View other providers who treat Ascites
Barretts Esophagus with Dysplasia
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Biliary Cirrhosis
Bowel Strangulation
Cholangitis
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Cyclical Vomiting
Dehydration
Diverticulitis
Diverticulosis
Duodenal Cancer
Duodenal Ulcer
Duodenitis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Familial Adenomatous Polyposis
Folate Deficiency Anemia
Gastric Ulcer
Heartburn
Hemochromatosis
Hepatitis B
Hepatitis B - Immune Response
Hepatitis C
Hepatitis D
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Ileus
  • View other providers who treat Ileus
Indigestion
Intestinal Malabsorption Carbohydrate
Ischemic Colitis
Lactose Intolerance
Liver Damage from Alcohol
Mallory-Weiss Syndrome
Malnutrition
Mesenteric Panniculitis
Neoplasm of Gastrointestinal Tract
Pancreatitis
Pernicious Anemia
Pouchitis
Primary Biliary Cholangitis
Primary Sclerosing Cholangitis
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Retroperitoneum Cancer
Splenic Infarct
Stomal Ulcer
Upper Digestive Tract Cancer
Viral Hepatitis
Viral Infection
Vitamin B12 Anemia
Bile Duct Procedure
Colon Cancer Screening
Colonoscopy
Colorectal Cancer Screening
Gallbladder Scan
Hemorrhoidectomy or Excision of Anal Tags
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound
VAP Lipid Testing
Wireless pH Testing

Patient Satisfaction

Likelihood to recommend Dr. Kolnik
5.0
Based on 2 Reviews
5 Stars (2)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (0)

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Patient Reviews
Sep 23, 2023
Dr. Kolnik tells you exactly what's up. He is friendly, easy going, and smart. Whenever I have a medical or drug question Dr. Kolnik is always well-read citing studies to support his opinion or diagnosis.When I was having GERD issues, he ordered a MRI. Turned out that he found a cyst in my pancreas. Dr. Kolnik immediately recommended that I see a specialist.Subsequently, I had Whipple surgery and they found that the cyst was pre-cancer. His quick diagnosis saved me from pancreatic cancer and may have saved my life.If you want to see a down to earth doc that is well read and cares, look no further.
Philly86 — Sep 23, 2023
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Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Cigna PPO
    Open Access Plus
  • Harvard Pilgrim Health Care PPO
  • MagnaCare PPO

About Me

Care Philosophy
  • We want to be your trusted choice for personalized health care and wellness. Our mission is to help you be well, get well, and stay well.
Care Philosophy
Biography
  • Dr. John Kolnik, DO is a gastroenterology specialist in Voorhees, NJ and has over 31 years of experience in the medical field. He graduated from PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE in 1992. He specializes in Gastroenterology.
Biography
Specialties*
Gastroenterology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Medical Education

Medical Education
  • PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
    1992
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Kolnik, DO. To arrange an appointment, call the number on Dr. Kolnik's profile.

Dr. Kolnik frequently treats the following conditions: Intestinal Diverticulosis and Hemorrhoids. See more on Sharecare.

Dr. John Kolnik, DO is affiliated with Virtua Mount Holly Hospital.

Yes, Dr. John Kolnik, DO holds board certification in Gastroenterology.

Dr. Kolnik has over 32 years of healthcare experience.

Hospital Affiliations

  • Virtua Mount Holly Hospital

    175 Madison Ave, Mount Holly, NJ

Dr. John Kolnik, DO

Dr. John Kolnik, DO

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