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 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 

FREE PATIENT EDUCATION SERIES - Join Dr. Mark Chilton, MMI Orthopaedic Surgeon and Joint Replacement Specialist, for our next seminar, Don’t Let Hip Pain Stop You.

Tuesday, April 29, 2014 at 6:00 PM • Brewers Alley Restaurant• Frederick, MD.

If you suffer from severe hip pain, please join us to learn more about the causes of hip pain and available treatment options including total joint replacement.

Space is limited and registration is required. To sign up for this event go to
or call 800-486-0157. Light refreshments will be served.


MMI Office Hours 

  • Monday: 8am – 8pm
  • Tuesday: 8am – 8pm
  • Wednesday: 8am – 8pm
  • Thursday: 8am – 8pm
  • Friday: 9am – 4pm
  • Saturday: 8am – 12pm
  • 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