Main Facility • 86 Thomas Johnson Court, Frederick, MD 21702
phone (800) 349-9386 •  fax (301) 694-3537

One Place For All Your Musculoskeletal Needs

Our orthopaedic surgeons specialize in fracture care, sports medicine, pediatrics, spine, hand, foot and ankle making us one of the most comprehensive orthopaedic surgery practices in Maryland.

Learn more about MMI’s Providers »

The Spine Institute
at MMI

MMI’s multidisciplinary spine care includes orthopaedic, chiropractic and Interventional Pain Management specialists offering a full range of conservative, non-surgical and surgical treatment options.

About The Spine Institute at MMI »

Care for Arthritis

MMI offers a full range of services from Rheumatologists who treat arthritis and related auto immune diseases to Orthopaedic surgeons who perform minimally invasive surgery and joint replacement.

Learn more Arthritis Care at MMI »

Sports Medicine Specialists

From the weekend warrior to the elite athlete, our specially trained sports medicine physicians and podiatrist are experts at diagnosis, treatment and rehabilitation of athletic injuries, so you can get back into the game.

About MMI’s Sports Medicine Physicians »

Your Single Source for Muscle, Bone and Joint Care.

A Division of the Centers for Advanced Orthopaedics

The physicians and staff at the Mid-Maryland Musculoskeletal Institute (MMI) are dedicated to providing excellent medical care and exceptional customer service. With offices in Frederick, Urbana, and Hagerstown, Maryland, we are recognized throughout the region for our expertise in both general and specialized Orthopaedic, Rheumatology and Physical Medicine care and provide state-of-the-art medical and surgical treatment.

MMI Announcements 

In observance of Independence Day, all MMI offices will be closed Friday, July 3rd to Sunday, July 5th.

Interested in a physical therapist’s perspective on CrossFit?  Take a minute to read MMI therapist, Beverly Kornides’ latest blog, What is CrossFit??

Dr. Jocelyn Idema is featured in this month’s Becker’s Spine Review – Spine surgeon by day, mother all the time: How high-energy spine surgeon Dr. Jocelyn Idema strikes the perfect balance

Register here for the 2015 FREE SPORTS PHYSICAL CLINIC - Saturday, August 1, 2015 at our Urbana facility – Open to students at Linganore, TJ, Tuscarora, and Urbana High Schools.




MMI Office Hours 

  • Monday: 8am – 8pm
  • Tuesday: 8am – 8pm
  • Wednesday: 8am – 8pm
  • Thursday: 8am – 8pm
  • Friday: 9am – 4pm
  • Saturday: 8am – 11am
  • Sunday: Closed

Our office is closed for most major holidays.

View our Frederick locations »

View our Urbana location »

View our Hagerstown location »

Orthopaedic Urgent Care