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- Mangum Community Hospital
- City: Mangum, Oklahoma
- Website: None listed
- Mary Hurley Hospital
- City: Coalgate, Oklahoma
- Website: http://www.ccghospital.com
- McAlester Regional Health Center
- City: McAlester, Oklahoma
- Website: http://www.mrhcok.com
- McBride Clinic Orthopedic Hospital, LLC
- City: Oklahoma City, Oklahoma
- Website: http://www.mcboh.com
- McCurtain Memorial Hospital
- City: Idabel, Oklahoma
- Website: None listed
- MeadowBrook Specialty Hospital of Tulsa
- City: Tulsa, Oklahoma
- Website: None listed
- Medical Center of Southeastern OK
- City: Durant, Oklahoma
- Website: http://www.mcsohealth.com
- Memorial Hospital & Physician Group
- City: Frederick, Oklahoma
- Website: None listed
- Memorial Hospital of Stilwell
- City: Stilwell, Oklahoma
- Website: None listed
- Memorial Hospital of Texas County
- City: Guymon, Oklahoma
- Website: http://www.mhtcguymon.org
- Mercy Health Center of Oklahoma City
- City: Oklahoma City, Oklahoma
- Website: http://www.mercyok.com/mhc
- Mercy Health Love County
- City: Marietta, Oklahoma
- Website: None listed
- Mercy Memorial Health Center, Inc.
- City: Ardmore, Oklahoma
- Website: http://www.mercyok.com/mmhc
- Midwest Regional Medical Center
- City: Midwest City, Oklahoma
- Website: http://www.midwestregional.com
- Moore Medical Center
- City: Moore, Oklahoma
- Website: None listed
- Muskogee Regional Medical Center
- City: Muskogee, Oklahoma
- Website: http://www.muskogeehealth.com
Read more about this topic: List Of Hospitals In Oklahoma