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Clinic Type

Gastroenterology

Address

562 Washington Street, Attleboro, MA 02703

Phone

401-274-4800

Email

Opening Hours

Tuesdays & Thursdays 8:00 AM – 12:00 PM

Emergency Care

If you are experiencing a medical emergency, please call 9-1-1.

Services Offered

  • Gastroenterology
  • Endoscopy
  • Colonoscopy
  • Capsule Endoscopy
  • Endoscopic Ultrasound
  • Hemorrhoid Banding
  • Flexible Sigmoidoscopy
  • Small Bowel Enteroscopy
  • Radiofrequency Ablation (Barrx)
  • Colorectal cancer screening
  • Ongoing trials
  • Preparation instructions
  • Patient reviews
  • Locations
  • Upper endoscopy (EGD)

Technology & Equipment

  • Capsule Endoscopy
  • Colonoscopy
  • Upper Endoscopy (EGD)
  • Endoscopic Ultrasound
  • Flexible Sigmoidoscopy
  • Small Bowel Enteroscopy
  • Radiofrequency Ablation (Barrx)

Team

  • Tian Gao, M.D. — Gastroenterologist
  • Brett Kalmowitz, M.D. — Gastroenterologist
  • Camille Knize, N.P. — Nurse Practitioner

Insurance & Payment

Languages Spoken

  • English

FAQs

How can I schedule an appointment?

To schedule an appointment, please call 401-274-4800 or use our secure Live Chat by clicking the “Message Us” button located at the bottom right corner of your screen and a member of our team will contact you within 48 hours.

What if I have a medical emergency?

If you are experiencing a medical emergency, please call 9-1-1.

Where is the Attleboro location?

Attleboro: 562 Washington Street, Attleboro, MA 02703.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades: 2.5/5 (24 reviews) (24)
  • WebMD: 3.5/5 (10 ratings) (10)
  • Healthgrades: 3.7/5 (3 reviews) (3)
  • FindATopDoc: 5/5 (31 reviews) (31)
  • Vitals: 3.5/5 (8 ratings) (8)

Patients praise

  • Thorough care and explanation of conditions
  • Positive long-term patient relationships for some providers
  • Professional office staff reported by some patients

Common complaints

  • Poor bedside manner and perceived rudeness
  • Lengthy wait times for appointments
  • Disrespectful communication from providers regarding patient concerns
  • Concerns regarding the quality or necessity of exams and procedures

"My first time meeting with him, he was unpleasant and very rude. He was very condescending... When I asked him questions, it..."

Healthgrades (Dr. David Cohen)

"She told me if I didn't want to take the meds she was describing, then I shouldn't waste her time. Very disrespectful"

Vitals (Attleboro Gastroenterology Associates)

"My daughter saw him from 1984 until 1987 and he was her favorite. He treated her and the disease... After seeing has good he was with her he became the families gastroenterologist."

Vitals (Dr. Mark Robbin)

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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