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About

Integrated Gastroenterology Consultants (IGC) is a private medical practice offering comprehensive gastroenterology care, including endoscopy/colonoscopy, inflammatory bowel disease (IBD) management, obesity medicine, liver/pancreas/gallbladder disorders, and pelvic floor issues. They operate from four offices in Massachusetts (Chelmsford/Lowell and Lawrence; with a presence in North Chelmsford and Lawrence General Hospital) and provide infusions, an IBD-specific center, and weight-management programs. They emphasize patient-centered care and have physicians trained at top institutions. Notably, there is no listed Newburyport/Newburyport location among their current offices. If you’re seeking care in Newburyport, you may need to visit nearby IGC locations in Chelmsford, Lowell, or Lawrence or contact their main office for referrals.

Clinic Type

Gastroenterology

Address

Andover and Lowell outpatient centers; hospital locations in Lowell, Lawrence, and Newburyport

Phone

+1 978-459-6737

Email

newpatient@integratedgic.com

Opening Hours

Monday–Friday 7:30am–4:30pm

Telehealth

Portal is available for messaging, results, prescriptions, and billing; telehealth services implied but not explicitly listed

Services Offered

  • GI services including colon cancer screening through colonoscopy
  • advanced non-surgical weight loss procedures
  • endoscopic sleeve gastroplasty (ESG)
  • intragastric balloons
  • gastric bypass revision treatments such as TORe (Overstitch)
  • colonoscopy
  • upper endoscopy
  • endoluminal surgery and bariatric endoscopy procedures
  • medical weight management with FDA-approved weight loss medications
  • nutrition counseling
  • lifestyle interventions
  • office visits
  • new patient evaluations
  • telehealth (not explicit, so null)

Technology & Equipment

  • Endoscopic sleeve gastroplasty (ESG)
  • Intragastric balloons (Orbera, Spatz)
  • TORe (Overstitch)
  • IGIC Patient Portal

Team

  • Dr. Holzwanger, MD (implied) — Director of Endoluminal Surgery and Bariatric Endoscopy

Insurance & Payment

Pay portal, pay bills through IGIC Patient Portal, phone and email communications for scheduling and billing, Billing section on site (from extras)

Languages Spoken

Pricing

  • 2 week wait time for colonoscopies, endoscopies, and office visits
  • 2 week wait time for new weight management patients

Current Offers

New patient welcome / scheduling availability — null

FAQs

What procedures are offered?

Colonoscopy, upper endoscopy, ESG, intragastric balloons, TORe, and other endoluminal bariatric procedures.

What is the wait time for an appointment?

We are scheduling colonoscopies, endoscopies, and office visits with a 2 week wait time.

Where are IGIC offices located?

Lowell, Haverhill, and Andover offices with addresses provided: Lowell 41 Wellman St, Suite #400, Lowell, MA 01851; Haverhill 600 Primrose St, Suite #203, Haverhill, MA 01830; Andover 300 Federal St, Suite #103A, Andover, MA 01810.

Do they accept new patients?

Yes, they are accepting new patients.

How can I contact for scheduling or inquiries?

Call 978-459-6737 or email newpatient@integratedgic.com.

Is there a patient portal?

Yes, IGIC has a Patient Portal for results, messaging, prescriptions, and bill pay.

What services are offered?

GI services including colon cancer screening through colonoscopy and non-surgical weight loss procedures; Medical Weight Management Center offers physician-supervised programs.

Awards & Accreditations

  • Castle Connolly Top Doctors in Gastroenterology (MA)
  • National Specialty Excellence Award by Rater8
  • Voted Top Doctors by Boston Magazine
  • #1 Private Group for Top Doctors in Gastroenterology (MA) by Castle Connolly

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Vitals: 3.4/5 (for specific providers) (Not explicitly stated for the practice as a whole)

Patients praise

  • Knowledgeable and thorough physicians
  • Attentive and empathetic patient care
  • Comfortable and pleasant visit experience for some patients

Common complaints

  • Difficulty scheduling appointments
  • Long wait times for appointments
  • Issues with office staff communication and responsiveness
  • Frustration with billing processes and costs

"Good doctors, terrible at everything else. Making appointments is awful. You will not get an appointment anytime soon, it will be months away - and the process is unnecessarily arduous and tedious."

LocalityBiz user review

"He's thorough and I have full confidence in his plan and recommendations. It was a very pleasant experience."

Integrated Gastroenterology Consultants website patient testimonial

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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