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Clinic Type

Gastroenterology

Address

1 Bay Ave., Montclair, NJ 07042

Phone

(866) 999-5162

Email

ardentcustomerservice@ensemblehp.com

Opening Hours

Not published — contact the clinic to confirm hours.

Services Offered

  • gastroenterology
  • endoscopy
  • colonoscopy
  • upper endoscopy (EGD, Gastroscopy)
  • small bowel capsule endoscopy
  • flexible sigmoidoscopy
  • endoscopic ultrasound
  • ERCP
  • ablation for Barrett’s Esophagus (BARRX)
  • colorectal cancer screening
  • colon cancer treatment
  • gastric/intestinal disease management

Technology & Equipment

  • endoscopy
  • endoscopic ultrasound
  • EGD
  • ERCP
  • BARRX
  • colonoscopy

Team

  • Gastroenterology team, board-certified — board-certified gastroenterologists

Insurance & Payment

referral required for appointments, phone appointment scheduling

Languages Spoken

FAQs

Appointments require a referral?

Yes, a physician’s referral is required. Call to schedule.

What procedures are offered in the GI endoscopy suite?

Upper endoscopy (EGD), small bowel capsule endoscopy, flexible sigmoidoscopy, endoscopic ultrasound, ERCP, colonoscopy, ablation for Barrett’s Esophagus (BARRX).

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Mountainside Medical Group official provider profiles: Generally high individual physician ratings (e.g., 4.6–4.9/5 range for many gastroenterologists) (Varies by provider, typically hundreds of reviews per doctor)
  • Healthgrades (specific to Dr. Masood Rizvi): 2.9/5 (8 reviews)
  • Yelp (hospital-wide reviews): 2.2/5 (146 reviews)
  • Momentary Labs (via CMS data): 2/5 stars (HCAHPS) (283 patient surveys)

Patients praise

  • Compassionate and understanding staff in certain departments
  • Highly rated individual gastroenterologists by patients (e.g., ratings often above 4.5/5)
  • Successful detection and treatment of complex conditions reported by patients
  • Cleanliness of the facility noted as a strength in patient surveys

Common complaints

  • Long wait times
  • Perceived lack of provider attentiveness or trust in medical decisions
  • Challenges with appointment scheduling and office communication
  • Below-average hospital ratings for nurse and doctor communication in HCAHPS surveys
  • General hospital facility concerns regarding noise and staff responsiveness

"I've had a great experience under Dr. Shah's care! Everyone in the office is incredibly nice and welcoming... I'm so happy to have been referred to him!"

Mountainside Medical Group Patient Review

"I had two visits with this doctor regarding pain on the upper right side of my stomach, and his response was that I was under stress... Overall this doctor Massod is not good at all."

Healthgrades Patient Review

"Thank you to Cynthia in the Emergency Department for being so caring and understanding."

Yelp Hospital 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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