GANJ – Wayne Location (1825 Route 23 S.) in Wayne
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Office in Wayne
  • Areas of Practice:
  • Gastroenterology

GANJ – Wayne Location (1825 Route 23 S.)

About Us

Gastroenterology Associates of New Jersey (GANJ) is an integrated group practice comprised of a team of highly skilled gastroenterologists. As part of our dedication to complete care, our board certified physicians and professional staff will effectively evaluate, diagnose and treat acute and chronic gastrointestinal conditions and diseases.

With locations throughout northern & central New Jersey, our multidisciplinary practice offers coordinated and comprehensive services with an emphasis on personalized care for patients of all ages and activity levels. In addition, our practice is affiliated with five ambulatory surgery centers where our advanced procedures are performed in a warm, comfortable environment on an outpatient basis.

Speaking about issues relating to one’s gut health isn’t easy. The physicians here at GANJ help put their patients at ease so that they create a treatment plan for whatever the situation.

For more information on our premier physicians, locations or services, contact us today.

Our Doctors

Robert Bleicher, MD

Dr. Robert Bleicher is a member of North Jersey Gastroenterology.

Education & Training
  • College: University of Michigan, Ann Arbor, MI
  • Medical school: Columbia University College of Physicians, New York, NY
  • Residency: Northwestern University, Chicago, IL
  • Fellowship: Northwestern University, Chicago, IL
  • Honors and Awards
  • Awarded Castle Connolly Top Doctors 2023
  • Bonnie Cheng, MD

    Dr. Bonnie Cheng is a gastroenterologist at North Jersey Gastroenterology, a division of Gastroenterology Associates of New Jersey (GANJ). She is dual board-certified in Internal Medicine and Gastroenterology by the American Board of Internal Medicine

    In addition to performing diagnostic and therapeutic upper and lower endoscopy, Dr. Cheng also performs specialty procedures including High-Resolution Esophageal Manometry, pH testing, and capsule endoscopy

    Education & Training
  • Dr. Cheng completed her fellowship in gastroenterology at Mount Sinai Hospital in New York, NY as well as her residency and internship at Hospital of University of Pennsylvania in Philadelphia, PA.
  • She received her medical degree from SUNY Buffalo and Bachelor of Science in biology at New York University.
  • Board Certifications
  • American Board of Internal Medicine – Internal Medicine
  • American Board of Internal Medicine – Gastroenterology
  • Honors and Awards
  • Castle Connolly Top Doctor Since 2020
  • Castle Connolly Exceptional Women in Medicine 2022, 2023, 2024
  • Steven David, MD

    Dr. Steven David is a member of North Jersey Gastroenterology.

    Education & Training
  • College: Sophie Davis School of Biomedical Education City College, New York, NY
  • Medical school: Mount Sinai School of Medicine, New York, NY
  • Residency: North Shore University Hospital/ Sloan Kettering, Manhasset, NY
  • Fellowship: University of Miami, Miami, FL
  • Honors and Awards
  • Awarded Castle Connolly Top Doctors 2023
  • David M. Pinn, MD

    Dr. David M. Pinn is a gastroenterologist at Gastroenterology Associates of New Jersey and double board certified in Gastroenterology and Internal Medicine. Throughout his career, Dr. Pinn has published numerous articles in peer-reviewed journals and has given lectures and presentations on a broad range of gastroenterology and hepatology topics. He is a member of several gastroenterology societies.

    Education & Training
  • Dr. Pinn completed his fellowship in gastroenterology at Montefiore Medical Center in Bronx, NY and his residency in internal medicine at Mount Sinai Beth Israel in New York, NY.
  • He graduated magna cum laude from Yeshiva University in New York City with a bachelor’s degree in biology and attended the Albert Einstein College of Medicine where he graduated with distinction in gastroenterology.
  • Board Certifications
  • American Board of Internal Medicine – Internal Medicine
  • American Board of Internal Medicine – Gastroenterology
  • Ravishankar ‘Ravi’ Ramamoorthy, MD

    Dr. Ravishankar ‘Ravi’ Ramamoorthy is a member of North Jersey Gastroenterology.

    Education & Training
  • College: Rutgers University, New Brunswick, NJ
  • Medical School:UMDNJ, Newark, NJ
  • Residency: UMDNJ, Newark, NJ
  • Fellowship: UMDNJ, Newark, NJ
  • Honors and Awards
  • Awarded by NJ Monthly Magazine Top Doctors 2022
  • Jonathon Stillman, MD

    Dr. Jonathon Stillman is a member of North Jersey Gastroenterology.

    Education & Training
  • College: University of Michigan, Ann Arbor, MI
  • Medical school: University of Pennsylvania, Philadelphia, PA
  • Residency: Cornell Medical Center, New York, NY
  • Fellowship: Memorial Sloan-Kettering Cancer Center, New York, NY
  • Honors and Awards
  • Awarded Castle Connolly Top Doctors 2023
  • Joseph Zangara, MD

    Dr. Joseph Zangara is a member of North Jersey Gastroenterology.

    Education & Training
  • College: John Hopkins Unversity, Baltimore, MD
  • Medical school: UMDNJ, Newark, NJ
  • Residency: University of Maryland, Baltimore, MD
  • Fellowship: University of Maryland, Baltimore, MD
  • Our Services

    Serving multiple counties in northern and central New Jersey, Gastroenterology Associates of New Jersey (GANJ) utilizes the latest techniques of the industry to effectively diagnose and/or treat an array of acute and chronic gastrointestinal conditions. With a team approach and an extensive network of experienced physicians, GANJ is able to provide complete care for disorders of the digestive system for patients of all ages. All procedures are performed in the comfort of the office or in one of our advanced ambulatory surgery centers.

    Procedures we perform include:

    For more information on the procedures we perform or to schedule an appointment, contact us today.


    At Gastroenterology Associates of New Jersey, our specialized team of physicians and staff has years of combined experience providing care for acute and chronic gastrointestinal conditions. With an advanced network and a team approach, we provide an efficient diagnosis, customized treatment and preventive care plan for the individual needs of you and your family.

    Conditions we treat include:

    For more information on the conditions we treat or to schedule an appointment with one of our specialists, contact us today.

    Our Office
    Phone: 973-633-1484
    Fax: 973-633-7980
    Monday: 9:00 AM - 5:00 PM
    Tuesday: 9:00 AM - 5:00 PM
    Wednesday: 9:00 AM - 5:00 PM
    Thursday: 9:00 AM - 5:00 PM
    Friday: 9:00 AM - 5:00 PM
    Saturday: Closed
    Sunday: Closed
    Additional Contact Information

    Are you currently a patient of GANJ? Click here to access your encrypted, secure patient portal so you can access information 24/7 from the comfort and privacy of your own home or office.

    Insurance

    Please see below for a full list of our Accepted Insurance Plans:

    • Medicare NJ*
    • Medicaid NJ
    • Aetna PPO/HMO/Medicare
    • Amerigroup
    • Americhoice
    • Amerihealth (HMO/PPO/POS)
    • Empire BCBS
    • Beech Street / Medichoice
    • Humana
    • Cigna (HMO/PPO/POS)
    • Community Care Network
    • Consumer Health Network
    • Devon / Americare
    • Emblem Health (PPO/HMO)
    • First Health
    • Galaxy
    • GHI (PPO/HMO)
    • Healthnet
    • Horizon BCBS of NJ (PPO/HMO/Traditional)
    • Horizon NJ Health
    • Local 825
    • Local 1199 (thru Aetna)
    • Magnacare
    • Health Republic
    • Multiplan
    • “Oxford (Liberty/Freedom/Medicare)”
    • Qualcare (HMO / PPO)
    • Railroad Medicare
    • Tricare
    • “United Healthcare (HMO, PPO, POS, EPO)”
    • VNS
    • Wellcare

    *accepted by all of our doctors

    Please note: This list is not all-inclusive and some of our doctors do not participate in all of these plans. To confirm if the doctor participates, please contact your insurance company directly.