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About

Summary: Cambridge Health Alliance (CHA) is a nonprofit, Harvard-affiliated teaching healthcare system serving Cambridge, Somerville, and Boston’s metro-north communities. It operates two acute care hospitals plus primary and specialty care facilities, including outpatient services in gastroenterology (GI) among its primary and specialty offerings. CHA emphasizes whole-person care with behavioral health integration and maintains teaching affiliations with Tufts University School of Medicine and Harvard Medical School. Key locations include CHA’s Cambridge Street headquarters and multiple sites in Somerville and Everett, MA. Note on GI specifics: - The page highlights CHA as a regional healthcare provider offering primary, specialty, and mental health/substance use services, but does not provide detailed Gastroenterology program specifics. For GI services, CHA would typically offer outpatient GI consultation, diagnostic endoscopy, and related GI care within its specialty network, at locations in Cambridge/Somerville. Consider contacting CHA directly or visiting their GI department page for precise services, providers, and appointment availability.

Clinic Type

Gastroenterology (multi-location group)

Address

CHA Cambridge Hospital, 1493 Cambridge Street, Cambridge, MA 02139; CHA Somerville Campus, 33 Tower Street, Somerville, MA 02143; CHA Everett Hospital, 103 Garland Street, Everett, MA 02149

Phone

617-665-1552

Email

webmaster@challiance.org

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • Gastroenterology

Technology & Equipment

  • Endoscopy
  • Colonoscopy
  • Capsule Endoscopy
  • Minimally invasive imaging

Team

  • CHA Cambridge Hospital — location/department (Gastroenterology)
  • CHA Somerville Campus — location/department (Gastroenterology)
  • CHA Everett Hospital — location/department (Gastroenterology)
  • Bret Ancowitz, MD — Gastroenterology
  • Alphonso Brown, MD — Gastroenterology
  • Robyn Ciriello, PA-C — Gastroenterology
  • Caitlin Iley, PA-C — Gastroenterology
  • Maria Livshin, MD — Gastroenterology
  • Emily Oliver, PA-C — Gastroenterology
  • Michael Payne, MD — Gastroenterology
  • Catherine Tovey, PA-C — Gastroenterology

Insurance & Payment

Languages Spoken

FAQs

What services are offered?

Esophagogastroduodenoscopy (EGD), Colonoscopy, Esophageal motility, ERCP, Virtual Chromo (Capsule) Endoscopy.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • US News & World Report: 4 out of 5 (18 reviews (for CHA gastroenterologists as a group))
  • WebMD (Dr. Michael Payne): 4.5 out of 5 (13 ratings)
  • Vitals/WebMD (Dr. Karim Fawaz): 3.7 to 4.0 out of 5 (6 ratings)
  • WebMD (Dr. Maria Livshin): 5 out of 5 (4 ratings)

Patients praise

  • Physicians described as detail-oriented, professional, and knowledgeable
  • Appreciation for doctors who provide clear explanations and show concern for patients
  • Some patients report high satisfaction with the clinical quality of care provided by individual doctors

Common complaints

  • Reports of long wait times for appointments and procedures
  • Concerns regarding non-medical administrative/logistics support staff
  • Occasional negative feedback about individual physician bedside manner and communication style
  • Complaints regarding billing practices for annual versus diagnostic visits

"His care is good and he is detail oriented but unless you have plenty of time to spare, I would think twice before making an appointment to him."

WebMD review of Dr. Michael Payne

"Dr. Fawaz is very attentive and seems to care greatly about my condition and helping me get better. I appreciate his professionalism, clarity and concern for me as his patient."

Vitals review of Dr. Karim Fawaz

"Stay away from CHA and Dr Md Sheikh! I went there for my annual preventative primary care check up... CHA refused to bill this visit as an annual primary care check up, and instead billed it as a diagnostic visit, and charged me additional 200 out of pocket."

LocalityBiz review of CHA Cambridge Health Alliance

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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