Elizabeth John, M.D.
Gastroenterology • Caldwell, NJ
About
Elizabeth John, M.D. is a gastroenterologist and internal medicine provider practicing at Mountainside Medical Group locations in Montville, Glen Ridge, and West Caldwell, New Jersey. Dr. John completed her medical degree from University of Central Florida College of Medicine and her gastroenterology fellowship at Methodist Dallas Medical Center in Texas. She offers gastroenterology and internal medicine services and accepts new patients.
Clinic Type
Gastroenterology
Address
Mountainside Medical Group – Gastroenterology, 170 Changebridge Rd. Unit C4 Montville, NJ 07045; Mountainside Medical Group – Gastroenterology, 311 Bay Ave. Suite 300B Glen Ridge, NJ 07028; Mountainside Medical Group – Primary Care, 1129 Bloomfield Ave. Suite 100 West Caldwell, NJ 07006
Phone
(973) 884-3355
ardentcustomerservice@ensemblehp.com
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Team
Insurance & Payment
—
Languages Spoken
FAQs
What are the appointment options for established patients?
Established patients can schedule an appointment with their provider through MyChart.
Awards & Accreditations
Social Media
Photos
What Patients Say
Overall sentiment across review platforms: mixed
- Mountainside Medical Center / Birdeye: 4.8/5 (38-206 reviews (varies by site))
- U.S. News: 4.3/5 (6 reviews)
- Healthgrades: 3.6/5 (25 ratings)
- WebMD: 4.5-5.0/5 (2-13 reviews)
Patients praise
- Thoroughness and medical knowledge
- Compassionate and caring bedside manner
- Clear communication and explanation of treatments
- Professional office staff (in some locations)
Common complaints
- Scheduling and appointment cancellations
- Administrative issues with new patient intake
- Perceived unprofessionalism or lack of empathy in specific instances
"Dr. John took the time to listen to my concerns, explained everything clearly, and made sure I was comfortable throughout the appointment."
— Birdeye (Dr. Elizabeth John, NJ)"I was driven to the appointment today and upon arrival I was told the doctor canceled the appointment... Now my health is at risk while I start over with the search for a competent doctor."
— Healthgrades (Dr. Elizabeth John, FL)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Elizabeth Caldwell - McCormick Theological Seminary — Apr 3, 2026
Information sourced from the clinic's website as of July 11, 2026.
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