About me
Dr. Knolmayer is the Chief of Orthopaedics at our MedStar Montgomery Medical Center location. He is a board certified orthopaedic surgeon who specializes in joint replacement and sports medicine, but also performs other general orthopaedic surgeries. He attended Cornell University as an undergraduate, graduating with distinction, and attended Georgetown University Medical School, graduating cum laude. He completed his orthopaedic residency at Georgetown Hospital in 1997.
Dr. Knolmayer started in private practice in 1997 and joined Medstar Georgetown Orthopaedics in February 2011. He has participated on numerous committees at MedStar Montgomery Medical Center and has also served as Chairman of the Department of Surgery in the past. Dr. Knolmayer has also served the community as team doctor for Watkins Mill High School football team from 1997-2010. He also has been voted a Top Doc in the Washingtonian and Bethesda magazines.
Clinical areas of focus
- Ankle And Foot Ligament Sprain
- Ankle Fracture Treatment
- Heel Tendon Repair
- Hip Arthroscopy With Synovectomy
- Hip Osteoarthritis
- Knee Arthroscopy With Meniscectomy
- Knee Pain
- Knee Replacement
- Knee Revision Surgery
- Meniscus Injury Treatment
- Torn Tendon
Conditions and procedures
Conditions I treat
- Abdomen, Lower Back, Pelvis, And Genital Injury
- Acantholytic Disorders
- Acl Tear
- Acquired Absence Of Limb
- Ankle And Foot Fracture
- Ankle And Foot Injury
- Ankle And Foot Ligament Sprain
- Ankle Joint Dislocation
- Arthropathy
- Benign Neoplasm Of Bone And Articular Cartilage
- Benign Tumor
- Bone Cancer
- Bone Density Disorder
- Bone Discontinuity
- Bone Disorders
- Bone Infection (OSTEOMYELITIS)
- Bulging Disc
- Bursitis Of Knee
- Bursopathy
- Cartilage Damage
- Cartilage Disorder
- Cervical Herniated Disc
- Chronic Regional Pain Syndrome
- Complications Of Joint Replacement
- Complications Of Procedures
- Congenital Malformations Of Spine And Bony Thorax
- Congenital Musculoskeletal Deformities
- Deforming Dorsopathies
- Dorsalgia
- Dorsopathies
- Elbow And Forearm Injury
- Elbow Joint And Ligament Dislocation And Sprain
- Enteropathic Arthropathies
- Enthesopathies
- Enthesopathy Of Lower Limb
- Failed Back Syndrome
- Femur Shaft Fracture
- Finger, Hand, And Wrist Open Wound
- Flexor Tendon Rupture
- Flexor Tendonitis
- Forearm Fracture
- Forearm Tendon Injury
- Gout
- Hand And Wrist Fracture
- Hip And Thigh Tendon Injury
- Hip Fracture
- Hip Joint Dislocation
- Hip Osteoarthritis
- Hip Pain
- Inflammatory Spondylopathies
- Intervertebral Disc Disorders
- Joint Derangement
- Joint Derangement Of Knee
- Joint Disorder
- Joint Infection (SEPTIC ARTHRITIS)
- Joint Sprain
- Knee And Leg Open Wound
- Knee Dislocation
- Knee Fracture
- Knee Joint And Ligament Sprain
- Knee Pain
- Kyphosis
- Labral Tears
- Lcl Injury
- Limb Deformity
- Lordosis
- Lower Leg And Ankle Fracture
- Lower Leg Injury
- Lumbar Disc Disease
- Lumbar Spine Fracture
- Malignant Neoplasm Of Connective And Soft Tissue
- Mononeuropathy Of Lower Limb
- Mononeuropathy Of Upper Limb
- Muscle Calcification And Ossification
- Muscle Disorders
- Muscle Strain
- Neck Nerve And Spinal Cord Injury
- Neoplasm Of Uncertain Behavior
- Nerve Root Disorders
- Orthopedic Aftercare
- Orthopedic Implant Complications
- Osteoarthritis
- Osteoarthritis Of First Carpometacarpal Joint
- Osteoarthritis Pain
- Osteochondral Defect
- Osteonecrosis
- Osteoporosis
- Patella Tracking Disorder
- Pathologic Fracture
- Periprosthetic Fracture
- Polyosteoarthritis
- Presence Of Functional Implants
- Rheumatoid Arthritis
- Rib And Sternum Fracture
- Scoliosis
- Septic Arthritis Of The Hip
- Shoulder And Upper Arm Muscle, Fascia, And Tendon Injury
- Shoulder And Upper Arm Tendon Injury
- Shoulder Arthritis
- Shoulder Burns
- Shoulder Dislocation
- Shoulder Fracture
- Shoulder Joint And Ligament Sprain
- Spinal Cord Injury
- Spinal Osteochondrosis
- Spondylolisthesis
- Spondylopathies
- Spondylosis
- Stress Fracture
- Superficial Knee Injury
- Synovium And Tendon Disorder
- Tendinitis
- Tendinous Disorders
- Tendonitis Of The Shoulder
- Thumb Synovitis
- Torn Tendon
- Vertebral Fractures
- Wrist And Hand Joint And Ligament Dislocation And Sprain
- Wrist And Hand Tendon Injury
Procedures I perform
- Achilles Tendon Rupture Treatment
- Ankle Arthroscopy
- Ankle Fracture Treatment
- Ankle Joint Replacement
- Arthrocentesis
- Arthrodesis Of Ankle
- Arthroplasty
- Arthroscopic Loose Body Removal
- Arthroscopic Surgery
- Arthroscopy With Chondroplasty
- Bone Graft
- Bone Repair
- Cervical Myelopathy Surgery
- Cervical Vertebra Reposition
- Closed Clavicular Fracture Treatment
- Closed Femoral Fracture Treatment
- Closed Fibular Fracture Treatment
- Closed Patellar Fracture Treatment
- Closed Treatment Of Femoral Fracture Without Manipulation
- Distal Radius Fracture Treatment
- Extensor Tendon Grafting
- External Fixation Of Right Tarsal
- Femoral Nerve Transfer
- Femur Fracture Stabilization
- Fibula Osteotomy
- Float Therapy
- Ganglion Cyst Excision
- Glenohumeral Joint Total Shoulder Arthroplasty
- Greater Humeral Tuberosity Fracture Treatment
- Heel Tendon Repair
- Hip Arthroplasty
- Hip Arthroscopy With Synovectomy
- Hip Distraction
- Hip Joint Replacement
- Hip Osteotomy Revision
- Hip Resurfacing
- Hip Revision Surgery
- Hip Tenotomy
- Intertrochanteric Fracture Treatment
- Joint Arthroscopy
- Joint Debridement
- Knee Arthroscopy With Meniscectomy
- Knee Injection
- Knee Injury Treatment
- Knee Joint Diagnostic Drainage
- Knee Ligament Repair
- Knee Realignment
- Knee Replacement
- Knee Revision Surgery
- Labral Tears Treatment
- Left Hip Replacement
- Median Nerve Decompression
- Meniscus Injury Treatment
- Muscle Injection
- Nerve Block
- Open Femoral Fracture Treatment
- Open Treatment Of Tibial Fracture
- Osteochondral Defect Treatment
- Osteotomy
- Patellar Tendonitis Treatment
- Percutaneous Drainage
- Proximal Humeral Fracture Treatment
- Removal Of Implant
- Removal Of Synthetic Substitute From Knee Joint
- Reposition Upper Femur With Internal Fixation
- Revision Of Total Hip Arthroplasty
- Revision Of Total Knee Arthroplasty
- Right Hip Replacement
- Rotator Cuff Tendinitis Treatment
- Shoulder Arthroplasty
- Shoulder Arthroscopy
- Shoulder Impingement Syndrome Treatment
- Shoulder Joint Replacement
- Shoulder Joint Synthetic Substitute Removal
- Shoulder Labral Repair
- Shoulder Replacement
- Shoulder Revision Surgery
- Spinal Fusion
- Spinal Spondylolysis Treatment
- Sports Injury Treatment
- Tendon Transplantation
- Tibial Fracture Treatment
- Total Hip Arthroplasty
- Triangular Fibrocartilage Complex Injury Treatment
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.
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List of insurance plans we accept
- United Healthcare Select HMO - EPO/NPP
- IH-EPO Plus
- IH-HMO
- Aetna Traditional Choice (PPO)
- Medicare Advantage - Advantra Value (PPO)
- Aetna Quality Point of Service (POS)
- Aetna Advantage 5750
- United Healthcare Choice Cardiac Global
- CareFirst BlueChoice HMO
- United Healthcare Choice
- Police and Fire Clinic
- Aetna Advantage 6350PD
- Aetna Better Health of MD
- Private Health Care Systems (PPO)
- Optimum Choice Preferred (POS)
- IH-Open HMO
- Advantra Platinum (PPO)
- First Health PPO
- Aetna Classic 5000
- Choice POS
- Aetna Premier 200PD
- TRICARE East Select
- Choice POS II Open Access
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- TRICARE East Prime
- Kaiser Permanente Signature
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Anthem Federal Employee Program Standard
- Humana Medicare Advantage - PPO
- Optimum Choice
- Anthem BCBS of VA HealthKeepers (HMO)
- CareFirst Administrators
- MultiPlan, Inc
- UnitedHealthcare Individual Exchange Plans
- Great-West Healthcare POS/CIGNA
- MedStar Family Choice - Maryland Health Choice
- IH-POS
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Health Services for Children with Special Needs
- Cigna Preferred Medicare (HMO)
- CareFirst Maryland Indemnity or PPO
- Blue Choice Advantage
- CareFirst Group Medicare Advantage
- CareFirst Maryland Point of Service Plan
- UHC Passport
- Aetna Medicare Advantage HMO & PPO Plans
- CIGNA EPO
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Choice Fund PPO
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- United Healthcare Options (PPO)
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Aetna Elect Choice/ Open Access (POS)
- Aetna Worker's Compensation Network
- CareFirst Dual Prime HMO-SNP
- Cigna True Choice Medicare (PPO)
- M.D. IPA Preferred (POS)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Kaiser Maryland Medicaid MCO
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Priority Partners - Maryland Health Choice
- IH-Indemnity
- TriWest Healthcare Alliance
- CIGNA HMO & Network (HMO)
- OA Plus
- Coventry of Delaware HMO/PPO
- Choice POS II
- Humana Medicare Advantage - HMO Open Access
- Medicare FFS
- CareFirst EPO
- CareFirst Community Health Plan of MD
- Aetna Medicare Advantage PFFS Plan
- Aetna Classic 3500
- United Healthcare Select Plus (POS)
- IH-Network Only Plus
- AMERIVANTAGE/Amerigroup Community Care
- Anthem BCBS Medi Blue SNP
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- IH-PPO
- Maryland Physicians Care MCO
- Aetna Managed Choice (POS)
- Anthem BCBS Medi Blue Plus
- Medicare Direct
- CareFirst MedStar PPO
- CIGNA SureFit (HMO)
- BlueChoice Open Access
- Kaiser Permanente Select - Added Choice
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Cigna True Choice Plus Medicare (PPO)
- Humana Gold Plus HMO
- Aetna Signature Administrator PPO/TPA
- Anthem BCBS of VA HealthKeepers Plus
- Core Essential (HMO)
- Aetna HMO
- CIGNA PPO Plus
- Kaiser Permanente Medicare Plus
- IH-Open Network Only Plus
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- United Medicare Private Fee-for-Service (PFFS) plans
- CIGNA POS/Network POS
- Select HMO/HealthFund/Health Network
- POS OA
- Employee Health Plan
- CareFirst Blue Card Program
- Tricare Reserve Select
- Johns Hopkins Advantage MD PPO
- Sentara Health
- CareFirst Federal Employee Program (Std. & Basic PPO)
- MedStar Family Choice DC Healthcare Alliance
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Managed Choice Open Access (POS)
- Alterwood Advanatge HMO & DSNP Plans
- United HealthCare Community Plan - Maryland Health Choice Program
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- CareFirst Blue Preferred PPO
- HumanaChoice Honor's plan PPO
- NYC Medicare Advantage Plus
- Aetna VA Exchange
- Erickson Advantage Plans
- CareFirst (NCA) Indemnity
- Kaiser Permanente Signature - Added Choice
- OCI Direct (HMO)
- Amerigroup DC Healthy Families
- CareFirst NASCO
- MedStar Family Choice DC Healthy Families
- IH-Open EPO Plus
- Aetna Classic 5000PD
- IH-Open HMO Option
- Amerigroup DC Alliance
- Lasso Healthcare - Medicare Medical Savings Account
- Kaiser Permanente Select Cardiac Global
- UnitedHealthcare and AARP Medicare Complete Plans
- Coventry Health Care of Virginia
- Options PPO Cardiac Global
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- IH-Open POS Plus
- IH-Open POS II
- CareFirst Blue Choice Opt Out Open Access
- HealthyBlue PPO
- TRICARE for Life East
- Anthem Federal Employee Program Basic
- M.D. IPA (HMO)
- United Healthcare Navigate Cardiac Global
- IH-POS Plus
- Aetna Open Choice (PPO)
- CIGNA HMO Open Access
- United Healthcare Choice Plus Cardiac Global
- Aetna Basic
- Cigna Achieve Medicare (HMO C-SNP)
- Veterans Affairs Community Care Network
- United Healthcare Community Plan - VA Medicaid MCO
- HumanaChoice PPO
- Network OA
- Anthem BCBS Medi Blue Dual Adv
- Optima Family Care MCO - VA Medicaid MCO
- Magellan Complete Care of VA - VA Medicaid MCO
- Cigna TotalCare (HMO D-SNP)
- Aetna Student Health Insurance
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Kaiser Permanente Medicare Advantage Signature and Select
- Beech Street PPO
- Choice Care Network/HUMANA (PPO)
- Coventry Health Care National Network PPO
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Aetna Better Health of VA
- AmeriHealth Caritas DC Healthy Families
- Cigna Alliance Medicare (HMO)
- United Student Resources
- CIGNA Indemnity
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- HighMark
- Aetna Advantage 6350
- CareFirst FEP Blue Focus
- Geisinger Medicare Advantage
- Jai Medical Systems - Maryland Health Choice
- First Health PPO
- Johns Hopkins Advantage MD HMO
- CIGNA Connect EPO
- Kaiser Permanente Select
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- AmeriHealth Caritas DC Healthcare Alliance
- Navigate
- Private Fee-for-Service Plans (PFFS)
- Healthy Blue (HMO, POS)
- WellPoint Maryland - Maryland Health Choice
- CareFirst MedStar Select PPO
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Mamsi Life & Health (Indem./PPO)
- CIGNA PPO
- Johns Hopkins Advantage MD PLUS PPO
- United Healthcare Choice Plus
- DC/MD SHOP QHP Small Business Plans
- Uniformed Services Family Health Plan
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Kaiser Permanente Flexible Choice 3-tier POS
Education
Board Certification: American Board of Orthopaedic Surgery, Orthopaedic Surgery
Residency: Georgetown University Medical Center GME (1997)
Residency: Georgetown University Hospital (1993)
Medical School: Georgetown University (1991)
