Advanced Gastroenterology Group: Gastroenterologist in NJ ...
Gastroenterology • Union City, NJ • 8 office locations locations
Clinic Type
Gastroenterology
Address
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Phone
(908) 851-2770
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Opening Hours
Not published — contact the clinic to confirm hours.
Emergency Care
Same day appointments available for urgent GI concerns
Services Offered
Technology & Equipment
Team
Insurance & Payment
Most screenings covered by insurance; preventive colonoscopies covered 100% under ACA
Insurance, Out-of-pocket, Self-pay options (implied)
Languages Spoken
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Pricing
Current Offers
Screening and prevention-focused GI care
FAQs
Do most screenings get covered by insurance?
Yes; most screenings are fully covered, with preventive colonoscopies covered 100% under ACA.
Which insurance plans are accepted?
Most major insurances plans accepted; preventive colonoscopies covered 100% under ACA. Benefits verified before visit.
Are screenings fully covered?
Most Screenings are Fully Covered; Under the ACA, preventive colonoscopies for average-risk patients are covered at 100% — no copay, no deductible.
Do you offer same-day appointments?
Yes, same day appointments available for urgent GI concerns.
Do you have an outpatient endoscopy center?
Yes, dedicated outpatient endoscopy center with high adenoma detection rates and AI-assisted technology.
What programs do you offer?
Specialized programs: NALFD/fatty liver program, IBD infusions, nutrition services.
Commitments
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- ucgastro.com: 4.84 out of 5 stars (759 reviews (for the Union City, TN location))
Patients praise
- Professional and caring medical staff
- Efficient, patient-focused service
- Excellent experience with procedures and follow-up care
- Knowledgeable and kind physicians
"NEVER will go again! First visit doctor didn't even know what exams to have me do... The Worse I have ever experienced in a doctor's office."
— localitybiz.com"My experience was extremely uncomfortable and unpleasant. I have never had a rectal exam at any gastrointestinal specialist I have visited in my entire life at a consultation appointment."
— ucgastro.com"I've had multiple visits to Dr. Arun Matthews' office and for various procedures, and every experience has been excellent. The entire staff is professional."
— yelp.comSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Dr. Meron Debesai, MD - Gastroenterologist in Union City, NJ — Jun 11, 2026
- Judith Gang, MS, FNP-C - Gastroenterology Medical Associates — Aug 25, 2025
- Gastroenterology Associates of New Jersey Recognized by Castle Connolly as a Top Physician Practice for Gastroenterology Care - Washington News Journal — Apr 1, 2026
- Geethan Sivananthan, MD - Allied Digestive Health — Sep 10, 2025
- Gastroenterology Associates of New Jersey Named a NJ Top Docs Practice for 2025 With 46 Reviewed and Approved Providers — Jan 15, 2026
Information sourced from the clinic's website as of July 11, 2026.
More gastroenterology clinics in Union City
Gastroenterology Associates of New Jersey (GANJ) is a private multispecialty gastroenterology group founded in 2009, headquartered in Woodland Park, NJ. It operates as a 28-location, patient-centered practice across Bergen, Passaic, Morris, Hudson, Ocean, and Essex counties, with affiliated ambulatory surgery centers for outpatient procedures. The group offers comprehensive digestive health services with board-certified physicians and a multidisciplinary team, serving patients of all ages. Main contact: info@ganjllc.com, +1 973-471-8200. Notable note: Union City is not listed among their current office locations; primary offices are in Woodland Park and Clifton, NJ.
Advanced Gastroenterology in Union City, TN offers gastroenterology services including colonoscopy, EGD, hemorrhoid treatment, capsule endoscopy, anal manometry, and care for diarrhea and constipation. Located at 1109 E Reelfoot Ave (Union City, TN), they provide patient portals and testimonials. They present as a small practice with a dedicated GI specialist and a focus on GI tract treatment and procedures. Contact: 731-884-0600. Services available at Summit Endoscopy Center with two Union City office entries.
Gastrointestinal Associates of Northeast Tennessee, P.C. (GIA) is a Johnson City, TN-based gastroenterology practice with two offices in Johnson City. Key details: - Services: Gastroenterology with multiple physicians and GI-related care. - Location: HQ and two offices at 310 N State of Franklin Rd, Johnson City, TN 37604. - Contact: Main phone numbers include (423) 929-7111 and (423) 929-9448. - Size & finances: About 6 employees; estimated annual revenue in the $5–$25 million range. - Online presence: Website giassociatesofnetn.com; modest web traffic (monthly visits ~7,265; bounce rate ~0.9%). - Rating: Employer rating 2.8/5 from 2 reviews (perceived work-life and culture positively by some). Note: The user query mentions “Johnson … Union City”—this page only documents the Northeast Tennessee locations in Johnson City, not Union City. If you need Union City-specific gastroenterology options, I can search for that separately.
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