Mountainside Medical Group

$90.0M revenue • 500 employees • 311 Bay Ave Ste 300A, Glen Ridge, NJ, 07028, United States

Last Updated Jul 5, 2026

Company Overview

Company Name

Mountainside Medical Group

Address

311 Bay Ave Ste 300A, Glen Ridge, NJ, 07028, United States

Approx. Annual Revenue

$90.0M

Employees

500

Established

2017

Google Reviews

5.0 (9 reviews)

Locations

22

About Mountainside Medical Group

Mountainside Medical Center, located in Montclair, NJ, has provided top-tier medical care for over a century. The hospital offers a wide range of services, including breast health, cardiac care, emergency care, and genetic counseling, with a focus on medical excellence and community service.

Recent changes

What changed on the Mountainside Medical Group website and Google listing, as detected by Coldlytics on each visit.

  1. Google reviews went from 131 to 133

  2. Google reviews went from 2,154 to 2,156

Coldlytics tracks changes like these across millions of businesses, so you can reach companies the moment they add a pixel, start hiring, or switch software.

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Mountainside Medical Group locations

22 Google Business Profile listings.

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Frequently Asked Questions about Mountainside Medical Group

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Key Decision Makers

Tim O'Brien CEO
LinkedIn
Tim Brien Cheif Executive Officer
LinkedIn