Allison Liefeld Fillar, MD| Sports Medicine, Orthopedic Sports Medicine | MedStar Health

Allison Liefeld Fillar, MD
Provider is directly employed by MedStar Health

4.9 out of 5 (1279 reviews)

Specialties: Sports Medicine, Orthopedic Sports Medicine, Orthopedic Surgery

Languages: English

410-554-2084

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.

Clinical areas of focus

  • Ankle Pain
  • Anterior Cruciate Ligament Injury
  • Cartilage Injury
  • Elbow Injury
  • Elbow Pain
  • Hip Labral Tear
  • Hip Pain
  • Knee Injury
  • Knee Pain
  • Meniscus Injury
  • Rotator Cuff Disorders
  • Shoulder Dislocation
  • Shoulder Instability
  • Shoulder Pain
  • Ulnar Collateral Ligament Repair
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Conditions and procedures

Conditions I treat

  • Achilles Tendon Injury
  • Achilles Tendon Tear
  • Achilles Tendonitis
  • Achilles Tendonosis
  • Acromioclavicular Fracture
  • Acromioclavicular Joint Separation
  • Adhesive Capsulitis
  • Ankle Fracture
  • Ankle Impingement
  • Ankle Injury
  • Ankle Instability
  • Ankle Pain
  • Ankle Sprain
  • Ankle Strain
  • Anterior Cruciate Ligament Injury
  • Anterior Tibialis Tendon Tear
  • Arm Fracture
  • Arm Injury
  • Arm Pain
  • Arthritis
  • Arthritis Of Knee
  • Athletic Pubalgia
  • Avascular Necrosis Of The Arm
  • Bicep Injury
  • Bicep Pain
  • Bicep Tear
  • Biceps Tendonitis
  • Bucket Handle Meniscus Tear
  • Bursitis
  • Bursitis Of The Elbow
  • Bursitis, Subcutaneous Tendo Achilles
  • Calcific Tendonitis
  • Calf Muscle Injury
  • Calf Pain
  • Cartilage Injury
  • Chronic Exertional Compartment Syndrome
  • Chronic Muscle Injury
  • Clavicle Fracture
  • Comminuted Fracture
  • Compartment Syndrome
  • Compound Fracture
  • Dislocated Patella
  • Elbow Bone Spur
  • Elbow Dislocation
  • Elbow Injury
  • Elbow Pain
  • Epicondylitis
  • Femur Fracture
  • Fibula Fracture
  • Finger Sprain
  • Foot Injury
  • Foot Pain
  • Fracture
  • Gastrocnemius Injury
  • Gluteal Injury
  • Gluteus Medius Tear
  • Growth Plate Fracture
  • Hamstring Injury
  • Hip Abductor Tear
  • Hip Click
  • Hip Dislocation
  • Hip Impingement
  • Hip Injury
  • Hip Labral Tear
  • Hip Pain
  • Hip Pain Under Age 60
  • Hip Rotator Cuff Tear
  • Humerus Fracture
  • Hypothenar Hammer Syndrome
  • Insertional Tendonitis
  • Joint Dislocation
  • Jumper's Knee
  • Knee Clunk Syndrome
  • Knee Fracture
  • Knee Injury
  • Knee Instability
  • Knee Pain
  • Knee Pain For Patients Aged 60 And Older
  • Knee Pain For Patients Aged Younger Than 60
  • Lateral Collateral Ligament Tear
  • Lateral Epicondylitis
  • Leg Fracture
  • Leg Injury
  • Leg Pain
  • Ligament Injury
  • Ligament Tear
  • Locking Knee
  • Loose Body In The Knee
  • Medial Collateral Ligament Injury Of The Knee
  • Medial Epicondylitis
  • Meniscus Injury
  • Meniscus Tear
  • Multiple Ligament Knee Injury
  • Non Displaced Fracture
  • Nonunion Fracture
  • Nutrition And Supplement Issues
  • Occipital Neuralgia
  • Osgood Schlatter Disease
  • Osteochondral Defect
  • Overuse Injury
  • Overuse Injury Of The Ankle
  • Paratenonitis
  • Patella Dislocation
  • Patella Injury
  • Patellar Instability
  • Patellar Tendon Rupture
  • Patellofemoral Injury
  • Patellofemoral Syndrome
  • Pectoral Muscle Injury
  • Pectoralis Major Tendon Injury
  • Peroneal Tendon Tear
  • Peroneal Tendonitis
  • Persistent Pain After Orthopedic Surgery
  • Piriformis Syndrome
  • Plantar Fasciitis
  • Posterior Cruciate Ligament (PCL) Tear
  • Posterior Tibial Tendon Tear
  • Posterolateral Corner Injury
  • Proximal Humerus Fractures
  • Quadrangular Space Syndrome
  • Quadriceps Injury
  • Repetitive Stress Injury
  • Rotator Cuff Disorders
  • Rotator Cuff Impingement
  • Rotator Cuff Injury
  • Running Injury
  • Scapular Dyskinesis
  • Separated Shoulder
  • Sesamoiditis
  • Shin Splints
  • Shoulder Dislocation
  • Shoulder Impingement
  • Shoulder Injury
  • Shoulder Instability
  • Shoulder Pain
  • Shoulder Strain
  • Shoulder Tendonitis
  • Snapping Hip Syndrome
  • Soft Tissue Injury
  • Sports Related Ankle Injury
  • Sports Related Foot Injury
  • Sports Related Injury
  • Stress Fractures
  • Synovial Chondromatosis
  • Tendinitis Of The Hand
  • Tendinitis Of The Wrist
  • Tendinosis
  • Tendon Injury
  • Tenosynovitis
  • Throwing Injury
  • Tibia Fracture
  • Tibial Spine Fracture
  • Tibial Tendonitis
  • Toe Fracture
  • Tricep Injury
  • Trigger Finger
  • Twisted Ankle
  • Ulnar Fracture
  • Work Related Musculoskeletal Disorders
  • Wrist Dislocation
  • Wrist Pain
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Procedures I perform

  • Acromioclavicular Joint Repair
  • Anterior Cruciate Ligament Repair
  • Arthroscopy
  • Arthroscopy Of Knee
  • Arthroscopy Of Shoulder
  • Arthroscopy Of Wrist
  • Autologous Chondrocyte Implantation
  • Bone Grafting
  • Bone Morphogenetic Protein (BMP)
  • Bone Reset
  • Bone Surgery
  • Closed Reduction And Manipulation
  • Computer Assisted Knee Replacement
  • Damaged Knee Cartilage Removal
  • Decompression Of Tarsal Tunnel
  • Elbow Injection
  • Elbow Surgery
  • Exertional Compartment Release
  • Fusion Of Joint
  • Hip Joint Injection
  • Hip Surgery
  • Joint Aspiration
  • Joint Injection
  • Joint Replacement
  • Joint Replacement And Reconstructive Surgery
  • Knee Surgery
  • Meniscal Surgery
  • Minimally Invasive Knee Replacement
  • Multiple Ligament Reconstruction
  • Nerve Block
  • Non Surgical Fracture Care
  • Non Surgical Management Of Osteoarthritis
  • Open Reduction Internal Fixation Orif Clavicle
  • Orthopedic Stem Cell Regeneration
  • Osteochondral Autograft
  • Pectoralis Major Tendon Tear Repair
  • Percutaneous Pinning
  • Peroneal Tendon Surgery
  • Platelet Rich Plasma (PRP) Injection
  • Platelet Rich Plasma Injection (PRP) Of The Elbow
  • Shin Splint Surgery
  • Shoulder Injection
  • Stem Cell Treatment For Joint Disease
  • Surgery For Arthritis
  • Tendon Repair Surgery
  • Total Hip Revision
  • Total Knee Replacement
  • Total Knee Replacement, Age Greater Than 50
  • Total Knee Replacement, Age Less Than 50
  • Total Shoulder Replacement Revision Surgery
  • Tricep Repair
  • Ulnar Collateral Ligament Repair
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Practice locations

Distance from Change LocationEnter your Location

3333 North Calvert Street
Johnston Professional Bldg Ste 400
Baltimore, MD, 21218

410-554-2161

Fax 667-359-3004

Get Directions

miles away

Fax 667-359-3004

2118 Greenspring Drive
Suite 210
Timonium, MD, 21093

410-554-2161

Fax 667-359-3004

Get Directions

miles away

Fax 667-359-3004

2 Loveton Circle
Sparks, MD, 21152

410-554-2161

Fax 667-359-3004

Get Directions

miles away

Fax 667-359-3004

Insurance

MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.

  • List of insurance plans we accept
    • Blue Choice Advantage & Healthy Blue (HMO, POS)
    • United Healthcare Options (PPO) (includes Empire PPO, GEHA, Compass Rose)
    • UnitedHealthcare and AARP Medicare Complete Plans/ UHC Group Medicare Advantage Plans HMO, POS, PPO
    • Kaiser PermanenteSelect-Added Choice
    • Medicare Fee for Service
    • Kaiser Virginia Premier
    • CFBCBS EPO
    • Kaiser Permanente Medicare Plus (Medicare Supplemental Plan)
    • Kaiser MD Medicaid MCO
    • Kaiser Permanente Signature-Added Choice
    • Kaiser Permanente Select
    • UHC Community Plan of MD
    • Private Health Care Systems (PHCS) (PPO)
    • UnitedHealthcare Medicare Adv/Special Needs Plans
    • Kaiser Permanente Signature
    • Cigna HealthSpring Medicare Advantage
    • Kaiser Permanente Flexible Choice POS
    • CFBCBS Federal Employee Program (Std/Basic PPO/Blue Focus)
    • Aetna Better Health of Maryland
    • Open POS II
    • Aetna Open Choice (PPO)
    • Choice POS & Choice POS II
    • Innovation Health: Open Network Only Plus
    • Opoen HMO Option
    • CIGNA HMO Open Access (OA)
    • CFBCBS Blue Choice Opt Out Open Access
    • Open EPO Plus
    • PPO and PPO Plus
    • Innovation Health: Open POS Plus
    • Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
    • Network OA
    • Aetna Elect Choice/ Open Access (POS)
    • Innovation Health: PPO
    • Aetna Managed Choice Open Access (POS)
    • Choice Fund PPO
    • BlueChoice Open Access
    • Open HMO
    • Select HMO/HealthFund/Health Network
    • HealthyBlue PPO
    • Aetna Traditional Choice (PPO)
    • United Healthcare Choice
    • Aetna HMO
    • POS OA & OA Plus
    • Aetna Managed Choice (POS)
    • CFBSBC Blue Preferred PPO
    • CIGNA EPO
    • Innovation Health: Indemnity
    • Aetna Innovations: HMO & EPO Plus
    • Innovation Health: POS Plus
    • Innovation Health: POS
    • MedStar Select (MedStar Associates' Plan)
    • MedStar Family Choice - Maryland Health Choice
    • Tricare for Life (Medicare Supplemental Plan)
    • Tricare Prime
    • FIRST HEALTH
    • First Health PPO
    • Coventry of Delaware HMO/PPO
    • Coventry Health Care of Virginia
    • CIGNA Indemnity
    • Great-West Healthcare POS/CIGNA
    • CIGNA POS/Network POS
    • CIGNA HMO & Network (HMO)
    • CFBCBS (NCA) Indemnity
    • CFBCBS Maryland Indemnity or PPO
    • CFBCBS Maryland Point of Service Plan (MPOS)
    • CFBCBS Blue Choice Opt Out Plus Open Access (POS)
    • CFBCBS BlueChoice HMO
    • Aetna Medicare Advantage HMO & PPO Plans
    • Aetna Student Health Insurance
    • Aetna Quality Point of Service (POS)
    • Aetna Elect Choice/ EPO (Aetna Health Fund) Innovation Health: Network Only Plus
    • Coventry Health Care National Network PPO
    • Aetna Worker's Compensation Network
    • Mamsi Life & Health (Indem./PPO)
    • Optimum Choice Preferred (POS) & OCI Direct (HMO)
    • M.D. IPA Preferred (POS)
    • M.D. IPA (HMO)
    • United Student Resources
    • United Healthcare Choice Plus
    • United Healthcare Select Plus (POS)
    • United Healthcare Select HMO - EPO/NPP

Education

Board Certification: American Board of Orthopaedic Surgery, Orthopaedic Surgery

Fellowship Program: MedStar Union Memorial Hospital (2015)

Residency Program: Montefiore Medical Center (2014)

Medical School: George Washington University School of Medicine (2009)

Awards

  • "Top Doc" by Baltimore magazine - 2023

Ratings and reviews

  • Explanations the care provider gave you about your problem or condition

    4.9
  • Extent to which the care provider listened to you

    4.9
  • Care provider's discussion of any proposed treatment (options, risks, benefits, etc.)

    4.9
  • Care provider's efforts to include you in decisions about your care

    4.9
  • Concern the care provider showed for your questions or worries

    4.9
  • Likelihood of recommending this care provider to others

    4.9
  • Dec 19, 2023

    Thank you

  • Dec 19, 2023

    Dr Fillar is very personable and excellent provider will definitely recommend her

  • Dec 18, 2023

    Appointment with Dr Fillar was exceptional.