Mountainside Medical Center
Focused on medical excellence and community service for more than a century
Take the first step towards reducing orthopedic pain.
Living with joint and muscle pain can be difficult. Our team at the Orthopedic Institute at Mountainside Medical Center is committed to helping you live pain free, with orthopedic treatments that include:
- Comprehensive neck, back, and spine care
- Minimally invasive surgical treatments
- Orthopedic rehabilitation services delivered by a team of skilled physical therapists
- Other services like joint injection therapy, fracture care, and treatment for sports injuries
Bariatrics
At Mountainside Medical Center, we understand that weight loss surgery is a big decision that can change your life. That’s why our bariatric doctors are prepared to answer your questions and offer you support every step of the way on your weight loss journey. We offer weight loss seminars and a variety of surgical treatments, including gastric bypass and sleeve gastrectomy, for patients who are eligible for bariatric surgery.
Classes and Events
We offer a range of classes and events tailored to your health needs and interests. From General Wellness and Maternity Care to Behavioral Health, Children’s Care, and Community Events, there’s something for everyone. Our classes are designed to support and educate. Explore our Classes and Events and sign up today.
News & Events
The latest news and events from Mountainside Medical Center
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Hackensack Meridian Mountainside Medical Group Welcomes Sangjin Lim, D.O.
Read more: Hackensack Meridian Mountainside Medical Group Welcomes Sangjin Lim, D.O.Montclair, NJ – (October 2, 2025) – Mountainside Medical Group is pleased to welcome Sangjin Lim, D.O., to its expanding team of healthcare providers. Dr. Lim is board-certified by the American Osteopathic Board of Family Physicians in Family Medicine and Sports Medicine. He is also board-certified in Neuromusculoskeletal Medicine and Osteopathic Manipulative Medicine by the…
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Healthy Lifestyle Choices to Lower Your Breast Cancer Risk
Read more: Healthy Lifestyle Choices to Lower Your Breast Cancer RiskDuring Breast Cancer Awareness Month, it’s a good time to think about steps you can take to protect your health. While not all risk factors can be controlled, healthy habits can lower your chance of developing certain cancers and other health problems. Small changes can make a big difference. Maintain a Healthy Weight Being at…
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Understanding PCOS: Polycystic Ovary Syndrome
Read more: Understanding PCOS: Polycystic Ovary SyndromeSeptember marks PCOS Awareness Month, a crucial time to shed light on Polycystic Ovary Syndrome (PCOS), a hormonal disorder that affects an estimated 1 in 10 women of reproductive age.[1] Despite its prevalence, PCOS often goes undiagnosed, misunderstood, or minimized, making awareness efforts more important than ever. What is PCOS? PCOS is a complex hormonal…
About Us
Patient focused, community oriented, conveniently located and equipped with technology that rivals the nation’s most prestigious healthcare systems, Mountainside Medical Center offers a comprehensive and growing array of services delivered by caring and highly skilled medical professionals. Mountainside Medical Center has been serving Montclair and its surrounding New Jersey communities since 1891. The physicians, nurses and volunteers who are a part of the Mountainside family are also your friends and neighbors. We’re your community, your hospital and your team, working hard on your behalf.
Join Our Team Today
At Mountainside Medical Center, exceptional associates provide exceptional care. It is not only our identity, it is also our expectation.