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Andrew B Stefaniwsky,  MD

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Andrew B Stefaniwsky, MD

Gastroenterology

4.8
(235)

Male

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About me

Dr. Andrew Stefaniwsky is a fellowship-trained gastroenterologist with Atlantic Medical Group, diagnosing and treating a range of digestive disorders from irritable bowel syndrome to liver conditions. Dr. Stefaniwsky joins Atlantic Medical Group from private practice, The Medical Group PA, where he was a founding partner from the time it was established in 1982. After receiving his medical degree from Robert Wood Johnson Medical School, Dr. Stefaniwsky remained there to pursue his residency, served as chief resident. He continued for fellowship training at UMDNJ-New Jersey Medical School, where he also served as a clinical instructor. A leader in his field, Dr. Stefaniwsky has held positions that have included president of the New Jersey Endoscopy Society and chief of the Department of Gastroenterology at Irvington General Hospital. Board certified in internal medicine and gastroenterology, Dr. Stefaniwsky is a fellow of the American College of Gastroenterology and a fellow of the American College of Physicians. He is also a member of Phi Beta Kappa academic honor society. Dr. Stefaniwsky maintains professional membership in the American Medical Association, New Jersey Medical Society, American College of Gastroenterology and American Society of Gastrointestinal Endoscopy. His research in the use of Ursodeoxycholic acid in bile acid gastritis was published in The Gastroenterology Journal. Dr. Stefaniwsky is a participating provider of the Atlantic Accountable Care Organization.

SPECIALTIES

  • Gastroenterology

AFFILIATIONS

  • Atlantic Medical Group

  • Overlook Medical Center

Where to see me

Insurance

Please contact the practice to confirm your health plan is accepted.

Education & Experience

TRAINING

Robert Wood Johnson Medical SchoolMedical School
Robert Wood Johnson - RutgersResidency
UMDNJ New Jersey Medical SchoolFellowship

BOARD CERTIFICATIONS

GastroenterologyAmerican Board of Internal Medicine

Patient Reviews

OVERALL RATING

4.8

(235 ratings)
20 reviews
  • 5.0
    Aug 27, 2025
    Dr. Stef has been my doctor for over 30 years and during that time his professionalism, knowledge and experience has saved my life twice and showed how important it is to know your patients medical history and the importance of following up on all aspects of my health. The personal medical history connection between the doctor and patient cannot be overstated .and the extra effort to avoid future medical issues is paramount to staying healthy
  • 5.0
    Aug 15, 2025
    Dr Stefaniwsky is an excellent experienced physician. His care, recommendations and medical guidance for many years have been of critical importance to me and my family members who are also his patients. Atlantic Health is fortunate to have a well-practiced and dedicated physician in its' group. He cares for the well-being of his patients, something that is often lost by others, especially administrators, in the mess of our current medical systems of which many massive medical groups have distanced from the goal of superior health care to focus on financial gain. Dr. Stefaniwsky should be held in the highest regard, as he is by me.
  • 1.7
    Aug 11, 2025
    Visit felt rushed and felt like the provider had already decided course of action before even seeing me. When asked about how to prevent reoccurrence, provider started walking out of the door and talking about the problem in the hallway, which felt unprofessional, rushed, and a breach of privacy.
  • 5.0
    Aug 9, 2025
    Doctor was Great he answered all my questions I appreciate it
  • 5.0
    Aug 8, 2025
    My experience was really good. Nurse Dana,Nurse Emma, Nurse Maura, Anesthesia Belsh and some others I didn't get there name, they treated me with respect. I was nervous, they helped me to not be nervous.They were friendly. They understood that coming to a hospital can make a person nervous. Dr. Stefaniwsky is a excellent doctor.