Dr. John Kolnik, DO

Dr. John Kolnik, DO

Gastroenterology  |  
Male  |  
Age 51
(15)
Insurances AcceptedSave
Dr. John Kolnik, DO is a gastroenterology doctor who practices in Haddon Heights, NJ. He is 51 years old and has been practicing for 26 years.

217 White Horse Pike

Haddon Heights, NJ 08035

Contact Information

Insurance Accepted

  • Aetna
  • American Progressive Life Insurance/Health Insurance
  • Amerihealth
  • AvMed
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Pennsylvania
  • CHAMPVA
  • Cigna
  • Commercial Insurance Company
  • 18 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Kolnik

Be confident in your decisions by checking out your provider's top areas of care, education, patient reviews and more. Learn about finding the right doctor for you

Top Care Areas

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See how frequently Dr. Kolnik performs your care needs compared to other doctors.

Diverticulitis, Intestinal
very high
more than 99% of peers
Irritable Bowel Syndrome
very high
more than 99% of peers
Gastrointestinal Diseases
very high
more than 98% of peers

Dr. Kolnik's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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2

Specialties

  • Gastroenterology
  • Internal Medicine
1

Board Certifications

  • Gastroenterology
    Accredited by: American Osteopathic Board of Internal Medicine*
79

Conditions Treated

  • Abdominal Disorders
  • Abdominal Pain
  • Anal Prolapse
  • Anal or Rectal Pain
  • Anemia
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Cholelithiasis
  • Cirrhosis
  • Clostridium Difficile Colitis
  • Colon Cancer
  • Colon Polyp
  • Colorectal Cancer
  • Constipation
  • Crohn's Disease
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Enteritis
  • Esophageal Achalasia and Cardiospasm
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Diverticulum
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Fecal Incontinence
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Helicobacter Pylori Gastrointestinal Tract Infection
  • Hemorrhoids
  • Hepatitis
  • Hepatitis C
  • Hernia
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Ischemia
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Lactose Intolerance
  • Liver Damage from Alcohol
  • Malnutrition
  • Nausea
  • Neoplasm of Gastrointestinal Tract
  • Non-Alcoholic Fatty Liver Disease
  • Non-Neonatal Jaundice
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatic Pseudocyst
  • Pancreatitis
  • Peptic Ulcer
  • Reflux Esophagitis
  • Stomach Cancer
  • Stomach Diseases
  • Stomach and Small Intestine Cancer
  • Stomal Ulcer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Viral Hepatitis
  • Vomiting Disorders

More

Read More
9

Procedures

  • Bravo pH Testing
  • Breath Testing
  • Capsule Endoscopy
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Flexible Sigmoidoscopy
  • Gastroenterology Procedures
  • Liver Biopsy

Background Check

0 Malpractice Claims

No malpractice history found for New Jersey.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • University Of Notre Dame
    Undergraduate School | Graduated 1988
  • Philadelphia College Of Osteopathic Medicine
    Medical School | Graduated 1992
  • University Of Medicine and Dentistry Of New Jersey
    Residency Hospital | Completed 1995
  • University Of Medicine and Dentistry Of New Jersey
    Fellowship Hospital | Completed 1997

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Kolnik has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Kolnik does not have any memberships or affiliations listed. If you are Dr. Kolnik and would like to add memberships or affiliations, please update your profile.

Dr. Kolnik's Reviews

Likelihood of recommending Dr. Kolnik to family and friends
4.9
based on 15 total reviews (2 with comments)

Likelihood to Recommend (15)

  • 5
    (14)
  • 4
    (1)
  • 3
    (0)
  • 2
    (0)
  • 1
    (0)

Dr. Kolnik's Performance

Trustworthiness
EXCELLENT
Explains condition(s) well
EXCELLENT
Answers Questions
EXCELLENT
Time well spent
EXCELLENT

Office & Staff Performance

Scheduling
EXCELLENT
Office environment
EXCELLENT
Staff friendliness
EXCELLENT
Average wait time
10 to 15 minutes
Dr. Kolnik Says:

Thank you for taking the time to submit a patient satisfaction survey.  If you had a great patient experience, we appreciate your referrals.  If there is an area where we can improve, please let me or my staff know.  We strive to provide exceptional patient care.


Patient Comments (2)

in Williamstown, NJ |
I found Dr. Kolnik to be kind and caring. I felt very at ease with him.
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in Lindenwold, NJ |
Dr. Kolnik is a phenomenal doctor. Not only does he excel as a physician, he is one of the most caring and kindest doctors I know. Finding him was like winning a medical lottery. Viki Pearson
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Visit Dr. Kolnik

Now Accepting New Patients
Dr. Kolnik accepts 27 insurance carriers
  • Aetna
    Aetna HMO
    Choice Plus POS II
  • American Progressive Life Insurance/Health Insurance
  • Amerihealth
    Amerihealth HMO
    Amerihealth PPO
    Direct POS
  • AvMed
    Open Access
  • Blue Cross Blue Shield
    Blue Card PPO
  • Blue Cross Blue Shield of Pennsylvania
  • CHAMPVA
  • Cigna
    Cigna HMO
    Cigna PPO
    Great West Healthcare-Cigna PPO
  • Commercial Insurance Company
  • CoreSource
  • Coventry Health Care
    Group Plan PPO
  • EmblemHealth
    GHI PPO
    Health Insurance Plan of Greater New York (HIP) PPO
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Government Employees Health Association (GEHA)
    GEHA
  • Horizon Blue Cross Blue Shield of New Jersey
    Direct Access
    Horizon Blue Cross Blue Shield HMO
    Horizon Blue Cross Blue Shield POS
    Horizon Blue Cross Blue Shield PPO
  • Humana
    Choice Care PPO
  • Independence Blue Cross
    Personal Choice PPO
  • Keystone Health Plan East
    Keystone Health Plan East HMO
  • MagnaCare
  • Mail Handlers Benefit Plan (MHBP)
  • Meritain Health
  • MultiPlan
    MultiPlan PPO
    PHCS Network PPO
  • MVP Health Care
    MVP Health Plan Inc
  • Oxford Health Plans
    Freedom Plan
  • QualCare
    QualCare HMO
    QualCare PPO
  • Tricare
    TriCare for Life
  • UnitedHealthCare
    Choice Plus POS
    Navigate HMO
    Navigate POS
    Options PPO
    Oxford Liberty

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Kolnik has admitting privileges

Virtua Voorhees Hospital
100 Bowman Dr
Voorhees, NJ 08043
View Hospital Profile