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About

Connecticut GI is a gastroenterology practice with 28 care centers across Connecticut, including locations in Wallingford, Avon, Hartford, and more. They offer comprehensive GI services and advanced diagnostics for digestive and liver disorders (biliary/pancreatic issues, small bowel disease, pelvic floor dysfunction, Barrett’s Esophagus, etc.). The practice is headquartered in Rocky Hill, CT, and employs about 89 staff with annual revenue in the $5–$25 million range. For Wallingford-specific care, visit Connecticut GI’s Wallingford location page and contact details through their network of care centers.

Clinic Type

Gastroenterology

Address

850 North Main Street Ext, Building 2 B3, Wallingford, CT 06492

Phone

203-886-0036

Email

Opening Hours

Monday – Friday 8:00AM – 5:00PM

Emergency Care

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

Services Offered

  • Gastroenterology
  • Gastroenterologist services in Wallingford, CT

Team

  • Anant Agarwalla, M.D. — Gastroenterologist
  • Kevin Jo, M.D. — Gastroenterologist
  • Maria Johnson, M.D. — Gastroenterologist
  • Lawrence Kogan, M.D. — Gastroenterologist
  • Osama Siddique, M.D. — Gastroenterologist
  • Jonathan White, M.D. — Gastroenterologist
  • Kathryn Jack, APRN — Advanced Practice RN
  • Gina Kelley, PA-C — PA-C
  • Cybill Thomas, APRN — Advanced Practice RN

Insurance & Payment

Languages Spoken

FAQs

What are your office hours?

Monday – Friday 8:00AM – 5:00PM

What are your hours of operation?

Monday – Friday 8:00AM – 5:00PM

How do I request an appointment?

Use the 'Request An Appointment' option on the site or contact the office; non-urgent requests will be handled within 48 hours.

What is the address for Connecticut GI – Wallingford?

850 North Main Street Ext, Building 2 B3, Wallingford, CT 06492

What should I do in case of a medical emergency?

Please call 9-1-1.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Trustindex.io: 4.7/5 stars (based on 8,831 total reviews for the practice) (8831)
  • MedicalNewsToday: 4.5/5 stars (for Dr. Anant Agarwalla) (2)

Patients praise

  • Professional and knowledgeable medical staff (doctors/nurse practitioners)
  • Caring and friendly demeanor from clinical providers
  • Effective communication and explanation of care plans
  • Thorough and attentive patient examinations

Common complaints

  • Rude or unfriendly reception staff
  • Long wait times to be seen for appointments
  • Poor coordination of testing and follow-up care
  • Specific patient allegations of improper procedural performance

"The staff is knowledgeable, courteous, professional, and extremely caring. I recommend them 1000%."

LocalityBiz patient review

"Reception on the other hand was quite rude, unfriendly, and had an attitude... If I hadn’t already waited so long for this appointment and needed it urgently I would have canceled."

LocalityBiz patient review

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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