About me
Allison Fillar, MD is fellowship trained and board-certified in orthopaedic surgery and sports medicine. She specializes in reconstructive knee and shoulder surgery.
Dr. Fillar has cared for professional, collegiate, and high school athletic teams in New York and Maryland. She has conducted research on various topics including meniscal root injuries, patellar tendon repair techniques, treatment after Achilles tendon ruptures and has analyzed varying techniques for ACL reconstruction.
Dr. Fillar is a member of the American Academy of Orthopaedic Surgeons, the American Orthopaedic Society for Sports Medicine, and the Arthroscopy Association of North America. She has been an invited instructor for arthroscopy courses at the American Academy of Orthopaedic Surgeons. She teaches residents and fellows across the DC, Maryland and Virginia region.
Dr. Fillar's focus is on helping patients get back to the activities they love. She believes in building relationships with patients over time and works in partnership with each person to evaluate treatment options.
Dr.Fillar is assisted by Amanda Nicole Rivera, PA.
Clinical areas of focus
- Acl Tear
- Cartilage Disorder
- Heel Tendon Repair
- Knee Arthroscopy With Meniscectomy
- Knee Ligament Repair
- Knee Pain
- Knee Replacement
- Patella Dislocation
- Patella Tracking Disorder
- Rotator Cuff Disorder
- Shoulder Arthroscopy
- Sports Injuries
Conditions and procedures
Conditions I treat
- Ac Joint Arthritis
- Acl Tear
- Arthropathy
- Bone Discontinuity
- Bone Disorders
- Bursopathy
- Cartilage Disorder
- Enthesopathies
- Enthesopathy Of Knee
- Femur Shaft Fracture
- Golfer's Elbow
- Hip And Thigh Tendon Injury
- Joint Derangement
- Joint Derangement Of Knee
- Joint Disorder
- Knee Fracture
- Knee Joint And Ligament Sprain
- Knee Pain
- Knee Stiffness
- Lateral Meniscus Injury
- Lcl Sprain Or Tear
- Lower Leg Injury
- Mcl Sprain Or Tear
- Muscle Disorders
- Musculoskeletal System Deformities
- Olecranon Bursitis
- Orthopedic Aftercare
- Osteoarthritis
- Osteochondropathies
- Osteonecrosis
- Patella Dislocation
- Patella Tracking Disorder
- Rotator Cuff Disorder
- Rotator Cuff Impingement
- Shoulder And Upper Arm Muscle, Fascia, And Tendon Injury
- Shoulder Dislocation
- Shoulder Fracture
- Shoulder Joint And Ligament Sprain
- Sports Injuries
- Superficial Knee Injury
- Synovium And Tendon Disorder
- Tendinous Disorders
- Tendonitis Of The Shoulder
- Tennis Elbow
Procedures I perform
- Arthroscopic Shoulder Debridement
- Arthroscopy Knee Loose Body Removal
- Arthroscopy With Chondroplasty
- Balance And Coordination Training
- Bone Graft
- Bone Repair
- Cartilage Transplant
- Closed Clavicular Fracture Treatment
- Closed Proximal Fibula Or Shaft Fracture Treatment
- Heel Tendon Repair
- Intertrochanteric Fracture Treatment
- Joint Arthroscopy
- Knee Arthroscopy With Meniscectomy
- Knee Injection
- Knee Injury Treatment
- Knee Joint Diagnostic Drainage
- Knee Ligament Repair
- Knee Realignment
- Knee Replacement
- Muscle Injection
- Open Treatment Of Tibial Fracture
- Orthopedic Physical Therapy
- Orthopedic Urgent Care
- Osteochondral Autograft Transplantation
- Osteotomy
- Removal Of Implant
- Removal Of Synthetic Substitute From Knee Joint
- Shoulder Arthroscopy
- Shoulder Dislocation Treatment
- Shoulder Instability Repair
- Sports Performance Training
- Surgical Treatment
Practice locations
Distance from Change Location Enter your Location
2 Loveton Cir
Sparks, MD, 21152
2118 Greenspring Dr
Ste 210
Timonium, MD, 21093
3333 N Calvert St
Johnston Professional Bldg Ste 400
Baltimore, MD, 21218
Insurance
This list represents the major payors accepted by MedStar Health. NOTE: Payor contracts change and not all plans associated with a payor may be covered. Payors may offer multiple plans. If you have a question related to your insurance, please contact your insurance plan directly. Contact information is located on your health insurance ID card. *Denotes limited participation. Specific providers and practices may NOT be participating. Please contact your insurance plan directly.
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List of insurance plans we accept
- Aetna
- CareFirst BlueCross BlueShield of Maryland
- Cigna Health Care
- Kaiser Permanente*
- MedStar Select (Administered by CareFirst)
- United HealthCare
- Aetna
- CareFirst BlueCross BlueShield of Maryland
- Healthspring
- Humana
- Medicare & Railroad Medicare
- United HealthCare
- Aetna Better Health of Maryland *
- Medical Assistance/Medicaid
- MedStar Family Choice MD
- Priority Partners *
- United HealthCare Community Health Plan MD
- Wellpoint MD
- AmeriHealth Caritas
- Health Services For Children With Special Needs (HSCSN)
- Medical Assistance/Medicaid
- MedStar Family Choice DC
- Johns Hopkins Employer Health Programs *
- Johns Hopkins US Family Health Plan *
- MultiPlan
- Private Healthcare Systems
- Tricare/Humana Military
- VA Community Care Network (VACCN)
Education
Board Certification: American Board of Orthopedic Surgery, Orthopedic Surgery
Fellowship: MedStar Union Memorial Hospital at Baltimore (2015)
Residency: Montefiore Medical Center (2014)
Medical School: George Washington University School of Medicine & Health Sciences (2009)
Awards
- "Top Doc" by Baltimore magazine - 2023, 2024, 2025