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Dr. John Kollar, DO

General Surgery* Age 63
Dr. John Kollar, DO
4.8 (18 Ratings)
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Dr. John Kollar, DO is a General Surgery Specialist in Saddle Brook, NJ.
Dr. John Kollar, DO
4.8 (18 Ratings)
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Dr. John Kollar, DO

General Surgery* Age 63
Saddle Brook, NJ
Accepting new patients
37 years of experience
Dr. John Kollar, DO is a General Surgery Specialist in Saddle Brook, NJ.

About

Dr. John Kollar, DO is a General Surgery Specialist in Saddle Brook, NJ and has 37 years experience. They graduated from Rutgers New Jersey Medical School in 1987 and completed a residency at Kennedy Memorial Hospital.They currently practice at Practice and are affiliated with The Valley Hospital, Chilton Medical Center and Bergen New Bridge Medical Center. Dr. Kollar has experience treating conditions like Obesity among other conditions at varying frequencies. At present, Dr. Kollar received an average rating of 4.8/5 from patients and has been reviewed 18 times. Their office accepts new patients. Dr. Kollar is board certified in General Surgery and accepts multiple insurance plans.

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.

Easy Scheduling

Patients said scheduling was easy.

Compare with other General Surgery Specialists

Compare Dr. Kollar with our nearby General Surgery Specialists at Clara Maass Medical Center
Photo: Dr. Maria Kowzun, MD
Dr. Maria Kowzun, MD
7 reviews
Learn More
These providers are on the medical staff of Clara Maass Medical Center
These providers are on the medical staff of Clara Maass Medical Center.
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Experience Check

Enter a condition or procedure
Obesity
Bariatric Surgery (Weight Loss Surgery)
Sleeve Gastrectomy
Obesity
Bariatric Surgery (Weight Loss Surgery)
Sleeve Gastrectomy
Obesity
  • View other providers who treat Obesity
Bariatric Surgery (Weight Loss Surgery)
Sleeve Gastrectomy
Abdominal Pain
Cholecystitis and Gallstones
Diaphragmatic and Hiatal Hernia
Gallstones
Hemorrhoids
Inguinal Hernia
Intestinal Obstruction
Umbilical Hernia
Cholecystectomy with Robotic Assist
Excision, Shaving, or Destruction of Skin and Subcutaneous Tissue (incl. Mohs Micrographic Surgery), Tissue Transfer
Gallbladder Removal
Laparoscopic Gallbladder Removal (Cholecystectomy)
Laparoscopic Inguinal Hernia Repair
Open Inguinal Hernia Repair
Umbilical Hernia Repair Open
Wound Repair
Acute Bowel Infarction
Anal and Rectal Cancer
Anal or Rectal Pain
Anorectal Abscess
Anorectal Fistula
Appendicitis
Ascites
  • View other providers who treat Ascites
Benign Mediastinal Tumor
Benign Neoplasm of the Digestive System
Bowel Strangulation
Breast Cancer
Breast Lump
Capsular Contracture of Breast Implant
Cholangiocarcinoma
Colorectal Cancer
Constipation
Crohn's Disease
Ductal Carcinoma in Situ
Esophageal Cancer
Gastric Ulcer
Gastroparesis
Gynecologic Cancer
Hiatal Hernia
Hiatal Hernia with Obstruction
Ileus
  • View other providers who treat Ileus
Incisional Hernia
Inflammatory Bowel Disease
Intestinal Abscess
Intestinal Fistula
Ischemic Colitis
Lipomas
  • View other providers who treat Lipomas
Liver Cancer
Lobular Carcinoma
Megacolon
Neoplasm of Gastrointestinal Tract
Obstructed Inguinal Hernia
Partial Lung Collapse
Pelvic Abscess
Peptic Ulcer
Peripheral Vascular Disease (PAD, PVD)
Pleural Effusion
Pyloric Stenosis
Ruptured Aortic Aneurysm
Secondary Malignancies
Stomach Cancer
Thyroid Cancer
Traumatic Brain Injury
Ulcerative Colitis
Varicose Veins
Vascular Insufficiency of Intestines
Ventral Hernia
Ventral Hernia with Gangrene
Vulvar Cancer
Abdominoplasty
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Acid Reflux Surgery
Anal Fistulectomy or Fistulotomy
Axillary Lymph Node Dissection
Colectomy
Colostomy
Dressing and-or Debridement of Wound, Infection, or Burn
Duodenal Polypectomy
Endoscopy (Esophagus, Stomach, Small Intestine)
Enterostomy (Laparoscopic or Open)
Excision of Breast Tumor
Excision of Esophageal Lesion
Excision of Rectal Tumor
Excision of Stomach Tumor
Gallbladder Removal (Cholecystectomy)
Gastrectomy
Gastrectomy with Robotic Assist
Gastric Restrictive With Partial Gastrectomy or Jejunojejunostomy
Gastrotomy
Gynecomastia Repair
Hemorrhoidectomy or Excision of Anal Tags
Hernia Repair
Intestinal Transplant (incl. Enterectomy)
Laparoscopic Appendectomy
Laparoscopic Gastric Bypass Surgery
Laparoscopic Incisional Hernia Repair
Laparoscopic Revision Gastric Restrictive Procedure
Laparoscopic Umbilical or Ventral Hernia Repair
Laparotomy
Lumpectomy
Lymph Node Biopsy or Excision
Mastectomy
Non-Coronary Angioplasty, Atherectomy, and Stenting
Open Appendectomy
Open Diaphragmatic or Paraesophageal Hiatal Hernia Repair
Open Gastric Restrictive Procedure
Open Incisional or Ventral Hernia Repair
Paraesophageal Hernia Repair Robotic Assist
Paraesophageal Hernia Repair, Laparoscopic
Port Placements or Replacements
Puncture Aspiration
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Revision of Gastric Anastomosis or Restrictive Procedure
Soft Tissue Tumor Removal
Sphincterotomy
Thoracentesis
Tracheal Surgery
Ventral Hernia Repair Laparoscopic
Ventral Hernia Repair Open
Wedge Resection Colon

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Aetna HMO
    AWH NJ Choice MultiTier - Maximum Savings POS II
    AWH NJ Choice MultiTier POS II
    Choice Plus POS II
    Elect Choice (Open Access) EPO
    Managed Choice (Open Access) POS
    Open Choice PPO
    Premier Care Network APCN Choice (OAMC) POS II
    Premier Care Network Plus - Innovation Health
    Savings Plus of Metro, NY
    Select
    Signature Administrators PPO
  • HIP Prime HMO
  • Oscar Circle EPO
  • QualCare HMO
  • Choice Plus POS
    Navigate HMO
    Navigate POS
    Nexus Open Access
    Options PPO

Locations

  1. 1 Office
    383 Market St Ste 4, Saddle Brook, NJ 07663
    Icon Directions Right Arrow Directions Phone Icon (201) 712-7900
  2. 2 Bergen New Bridge Medical Center
    230 E Ridgewood Ave, Paramus, NJ 07652
    Icon Directions Right Arrow Directions Phone Icon (201) 967-4148
  3. 3 Bergen New Bridge Medical Center Medical Provider Group
    230 E Ridgewood Ave, Paramus, NJ 07652
    Icon Directions Right Arrow Directions Phone Icon (201) 967-4000

Patient Satisfaction

Likelihood to recommend Dr. Kollar
4.8
Based on 18 Reviews
5 Stars (17)
4 Stars (0)
3 Stars (0)
2 Stars (0)
1 Star (1)

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Patient Reviews
Jun 28, 2018
I highly recommend Dr. Kollar if someone is in need of a surgeon. I had a surgical procedure by this fine doctor and was very pleased with the way Dr. Kollar corrected my problem. Not only is he a great surgeon but his care and follow ups are excellent. He took all the time I needed to answer all my questions. His office staff is amazing. Dr. Kollar was highly recommended by another doctor to me. I am glad I took his advice.
Jean in Nutley, NJ — Jun 28, 2018
See more reviews on Healthgrades
Photo: Dr. John Kollar, DO
How would you rate your experience with Dr. John Kollar, DO?
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Dr. Kollar's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Kollar

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Specialties*
General Surgery
Bariatric Surgery
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

Education

Medical Education
  • Rutgers New Jersey Medical School
    1987
Medical Education

Board Certifications

Board Certifications
  • General Surgery
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.

Internship

Internship
  • Saddle Brook General Hospital
    1988
Internship

Residency

Residency Hospital
  • Kennedy Memorial Hospital
    1992
Residency Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Kollar communicate via email?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Kollar offer telehealth services or virtual visits?
No responses yet.
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(0)
No
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Does Dr. Kollar offer an online patient portal?
No responses yet.
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Does Dr. Kollar have free onsite parking?
1 user said yes.
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(1)
No
(0)
Does Dr. Kollar offer weekend visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Kollar offer evening visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Kollar specialize in working with children or adolescents?
No responses yet.
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Does Dr. Kollar specialize in working with seniors?
No responses yet.
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(0)
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Does Dr. Kollar specialize in couples therapy?
No responses yet.
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(0)
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Does Dr. Kollar specialize in working with LGBTQ+ community?
No responses yet.
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(0)
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Does Dr. Kollar accept insurance?
No responses yet.
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(0)
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(0)

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 Kollar, DO. To arrange an appointment, call the number on Dr. Kollar's profile.

Dr. John Kollar, DO is affiliated with The Valley Hospital, Chilton Medical Center and Bergen New Bridge Medical Center.

Yes, Dr. John Kollar, DO holds board certification in General Surgery.

Hospital Affiliations

  • The Valley Hospital

    4 Valley Health Plz, Paramus, NJ

  • Chilton Medical Center

    97 W Parkway, Pompton Plains, NJ

  • Bergen New Bridge Medical Center

    230 E Ridgewood Ave, Paramus, NJ