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Clinic Type

Gastroenterology

Address

20 Research Place Suite 220 North Chelmsford, MA 01863

Phone

855-818-1869

Email

elie.ata@merrimackhealth.org

Opening Hours

7:30 a.m.-4:30 p.m.

Emergency Care

Emergency care available

Services Offered

  • Gastroenterology
  • Endoscopy
  • Infusion Therapy/Treatment Center
  • Laboratory Services
  • Imaging and Radiology
  • Joints
  • Rehabilitation
  • Sleep Center
  • Obstetrics and Gynecology
  • Primary Care
  • Occupational Health
  • Emergency Care
  • Heart and Vascular Center

Team

  • Allen Hwang — Physician
  • Franklin C. Marinelli — Physician
  • Supriya — Physician
  • Winnie Sz — Physician
  • Nitin Aggar — Physician
  • Heidi Ahmed — Physician
  • Bridget Seymour — Physician

Insurance & Payment

Languages Spoken

FAQs

What are the practice hours?

7:30 a.m.-4:30 p.m.

Social Media

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • WebMD (for Dr. Richard Tilson): 5/5 (35 ratings, 20 reviews)
  • US News (for Dr. Heidi Ahmed): 5/5 (14 reviews)

Patients praise

  • Professional and courteous care team
  • Clear, thorough explanations of procedures and results
  • Compassionate and attentive bedside manner from providers
  • Welcoming and comfortable office atmosphere

Common complaints

  • Occasional reports of long wait times
  • Isolated severe negative feedback regarding staff and perceived incompetence
  • Internal workplace complaints from staff reviews regarding teamwork

"My visit with Dr. Tilson went very well. He explains everything about the procedure, what you should expect, the results and aftercare. He listens attentively to your concerns and puts you at ease."

WebMD Review

"Some comments suggest that wait times can occasionally be longer than expected, though overall experiences remain positive."

Wheree.com

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.

More gastroenterology clinics in Chelmsford

Chelmsford, MA·Gastroenterology

Integrated Gastroenterology Consultants (IGC) is a private medical practice offering comprehensive gastroenterology care with endoscopy and colonoscopy services. They serve the Merrimack Valley and Southern New Hampshire, with a main office in Chelmsford/Lowell and a Lawrence Clinic. Key details: - Locations: Main office at 20 Research Place, Suite 220, North Chelmsford, MA 01863; Lawrence Clinic at 1 General Street, Lawrence General Hospital, Lawrence, MA 01841. Additional Chelmsford/Lowell presence. - Services: Diagnostic and therapeutic gastroenterology, endoscopy and colonoscopy, inflammatory bowel disease care, obesity medicine and weight management, liver/pancreas/gallbladder disorders, constipation, IBS, pelvic floor disorders; colon cancer screening; outpatient endoscopy at affiliated hospitals. - Team: Physicians, nurse practitioners, nurses; specialized IBD center; infusions available at Chelmsford/Lowell. - Contact: New patient inquiries at newpatient@integratedgic.com; Phone: (978) 459-6737 (main), plus other listed numbers. - Highlights: Notable for a dedicated IBD program and obesity medicine center; trained at institutions like Boston Medical Center, University of Pennsylvania, Mass General, Tufts. Active presence in North Chelmsford with expansion to Lawrence. If you’re specifically seeking care in Chelmsford, the Chelmsford/Lowell main office (20 Research Place, North Chelmsford) is the primary location within IGC.

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Chelmsford, MA·Gastroenterology

Summary: Gastro Health is a private hospitals and health care group specializing in digestive and liver disorders, led by board-certified gastroenterologists. Founded in 2006 and headquartered in Miami, FL, it operates 81 US offices and has 622 employees. The organization is backed by private equity (OMERS Private Equity, with prior rounds from Audax and Penfund) and reported annual revenue of about $71.7 million with total funding of $100 million. While the provided page highlights the firm’s national footprint and services in gastroenterology, hepatology, colorectal surgery, and advanced endoscopy, specific information about a Chelmsford location is not listed on the page. If you’re seeking a Gastro Health clinic in Chelmsford, MA, this site does not show a Chelmsford address; you may need to search for nearest Gastro Health locations in Massachusetts or contact their main line for referral options.

VerifiedOnline bookingSince 2006

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