Ryan Michael Zimmerman, MD| Orthopedic Surgery, Hand Surgery | MedStar Health
About me
Dr. Zimmerman completed Orthopaedic Surgery training at Harvard and received his doctorate from Johns Hopkins. He specializes in treatment of the entire upper limb, from shoulder to fingertips. Specific areas of expertise include: arthroscopic shoulder surgery (such as rotator cuff repair), shoulder replacement, reverse shoulder replacement, trauma (such as shoulder, elbow, wrist, hand or finger fractures), and nerve compression syndromes (such as carpal tunnel). Dr. Zimmerman is active in research and education and uses the most recent reconstructive techniques to help his patients reach the highest levels of function and dexterity.
In the News
Baltimore surgeon reports hand injuries after snowblower-related accidents during Maryland snowstorms
Clinical areas of focus
- Club Hand Reconstruction
- Finger Arthroscopy
- Ganglion Cyst Excision
- Heel Tendon Repair
- Wrist Instability Treatment
Conditions and procedures
Conditions I treat
- Acantholytic Disorders
- Acquired Absence Of Limb
- Acquired Finger Deformity
- Acquired Wrist Deformity
- Amputation Of Fingers
- Amputation Of Hand
- Arthritis Of The Thumb
- Arthritis Of The Wrist
- Arthropathy
- Benign Tumor
- Bone Discontinuity
- Bone Disorders
- Bone Infection (OSTEOMYELITIS)
- Bursopathy
- Chronic Gout
- Complications Of Reattachment And Amputation
- Congenital Hand Deformities
- Congenital Malformations Of Limb
- Cutaneous Abscess, Furuncle And Carbuncle
- Dupuytren's Contracture
- Elbow And Forearm Injury
- Elbow Joint And Ligament Dislocation And Sprain
- Elbow Pain
- Enteropathic Arthropathies
- Femur Shaft Fracture
- Finger And Hand Amputation
- Finger Infection
- Finger Injury
- Finger Joint Dislocation
- Finger Joint Replacement
- Finger Joint Stiffness
- Finger Numbness And Tingling
- Finger Sprains
- Finger Tendon Rupture
- Finger, Hand, And Wrist Open Wound
- Flexor Tendon Rupture
- Forearm And Elbow Joint Instability
- Forearm Blood Vessel Injury
- Forearm Fracture
- Forearm Muscle Strain
- Forearm Pain
- Forearm Tendon Injury
- Forearm Tendonitis
- Ganglion Cysts
- Gout
- Hand And Finger Dupuytren's Contracture
- Hand And Finger Nerve Damage
- Hand And Finger Tumors
- Hand And Wrist Fracture
- Hand And Wrist Swelling
- Hand Joint And Ligament Sprain
- Hip And Thigh Tendon Injury
- Joint Derangement
- Joint Disorder
- Joint Sprain
- Laceration Of Hand
- Malignant Neoplasm Of Connective And Soft Tissue
- Median Nerve Compression
- Mononeuropathies Of The Hand
- Mononeuropathy Of Upper Limb
- Muscle Disorders
- Neck Nerve And Spinal Cord Injury
- Osteoarthritis
- Osteoarthritis Of First Carpometacarpal Joint
- Osteoarthritis Of The Finger
- Osteochondropathies
- Osteonecrosis
- Paralytic Syndrome
- Polyosteoarthritis
- Radial Nerve Entrapment
- Radial Nerve Injury
- Reduction Defects Of Limb
- Rheumatoid Arthritis
- Rheumatoid Arthritis Of Hand
- Rheumatoid Arthritis With Rheumatoid Factor
- Scaphoid Fracture
- Shoulder And Upper Arm Amputation
- Shoulder And Upper Arm Muscle, Fascia, And Tendon Injury
- Shoulder And Upper Arm Tendon Injury
- Shoulder Fracture
- Soft Tissue Disorders Of The Hand
- Synovium And Tendon Disorder
- Tarsal Tunnel Syndrome
- Tendinitis Of Elbow
- Tendinous Disorders
- Tendonitis Of The Hand
- Tenosynovitis Of The Wrist
- Thumb Arthritis
- Thumb Stiffness
- Thumb Synovitis
- Toe Amputation
- Trigger Finger
- Wrist And Hand Amputation
- Wrist And Hand Ganglion Cyst
- Wrist And Hand Joint And Ligament Dislocation And Sprain
- Wrist And Hand Pain
- Wrist And Hand Tendon Injury
- Wrist And Hand Tendonitis
- Wrist And Hand Tumors
- Wrist Arthroscopy
- Wrist Blood Vessel Injury
- Wrist Contracture
- Wrist Drop
- Wrist Joint Dislocation
- Wrist Joint Replacement
- Wrist Stiffness
- Wrist, Hand, And Finger Crushing Injury
Procedures I perform
- Amputation With Direct Closure
- Arthrocentesis
- Bone Graft
- Boutonniere Deformity Correction
- Boxer's Fracture Treatment
- Burn Contracture Release
- Canalicular Laceration Repair
- Capsulotomy
- Carpal Scaphoid Fracture Fixation
- Carpectomy Of One Bone
- Carpometacarpal Dislocation Treatment
- Cervical Vertebra Reposition
- Closed Reduction
- Club Hand Reconstruction
- Complex Regional Pain Syndrome Treatment
- Cubital Tunnel Release
- De Quervain Tenosynovitis Treatment
- Detachment At Left Middle Finger
- Digital Neuroplasty
- Digital Ray Amputation
- Distal Radius Fracture Treatment
- Dupuytren Contracture Treatment
- Elbow Arthroscopy
- Elbow Pain Treatment
- Elbow Replacement
- Endoscopic Carpal Tunnel Release
- Excision Of Tendon Sheath Or Joint Capsule Lesion
- Extensor Tendon Grafting
- Extensor Tendon Sheath Incision
- Facial Nerve Repair
- Fasciectomy With Release Of Single Digit
- Femoral Nerve Reposition
- Femoral Nerve Transfer
- Finger Arthroscopy
- Finger Contracture Release
- Finger Joint Replacement
- Finger Phalangeal Joint Fusion
- Finger Phalanx Excision
- Foot Skin Replacement
- Foot Subcutaneous Tissue Diagnostic Drainage
- Ganglion Cyst Excision
- Ganglion Excision
- Gastrocutaneous Fistula Takedown
- Hand Drainage
- Hand Fracture External Fixation
- Hand Replantation
- Hand Skin Excision
- Hand Tendon Excision
- Hand Tendon Repair
- Hand Therapy
- Hand Transplantation
- Heel Tendon Repair
- Interphalangeal Joint Capsulectomy
- Joint Arthroscopy
- Joint Drainage
- Left Ulnar Artery Repair
- Limb Replantation
- Lunate Dislocation Treatment
- Median Nerve Conduction Studies
- Median Nerve Release
- Metacarpal Fracture Treatment
- Metacarpal Joint Arthrodesis
- Metacarpophalangeal Joint Arthroplasty
- Metatarsal Drainage
- Microsurgery
- Microsurgical Procedures
- Muscle Flap
- Muscle Injection
- Muscle Stiffness Treatment
- Nail Plate Avulsion
- Nerve Block
- Nerve Conduit
- Nerve Graft
- Osteotomy
- Palmar Fasciectomy
- Phalangeal Fracture Treatment
- Phalangeal Shaft Fracture Treatment
- Phalanx Bone Excision
- Physical Therapy Modalities
- Pip Joint Dislocation Treatment
- Posterior Interosseous Nerve Syndrome Treatment
- Proximal Interphalangeal Joint Replacement
- Radial Head Fracture Treatment
- Radial Nerve Compression Treatment
- Radius Reposition With Internal Fixation
- Reattachment Of Ring Finger
- Reconstructive Surgery
- Ring Avulsion Injury Treatment
- Scaphoid Fracture Treatment
- Scaphoid Nonunion Treatment
- Scoliosis Deformity Correction
- Skin Graft
- Spinal Spondylolysis Treatment
- Stenosing Tenosynovitis Treatment
- Surgical Drainage
- Surgical Repair Of Flexor Tendon
- Suture Of Tendon
- Swan Neck Deformity Treatment
- Sympathectomy
- Tendon Lengthening
- Tendon Transplantation
- Tenolysis
- Thumb Amputation
- Thumb Dislocation Treatment
- Thumb Fracture Treatment
- Trigger Finger Treatment
- Ulnar Nerve Compression Treatment
- Ulnar Nerve Release
- Vascularized Bone Graft
- Vestibular Testing
- Wrist Instability Reconstruction
- Wrist Instability 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
- CareFirst EPO
- Amerigroup DC Alliance
- United Healthcare Select HMO - EPO/NPP
- Aetna Medicare Advantage PFFS Plan
- Anthem BCBS Medi Blue SNP
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Aetna Classic 5000
- CareFirst Maryland Point of Service Plan
- Employee Health Plan
- MedStar Family Choice - Maryland Health Choice
- Choice POS
- Anthem BCBS of VA HealthKeepers (HMO)
- CareFirst (NCA) Indemnity
- Options PPO Cardiac Global
- IH-Open HMO
- IH-Open Network Only Plus
- Anthem BCBS Medi Blue Plus
- Priority Partners - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers Plus
- CIGNA HMO Open Access
- United Healthcare Choice Cardiac Global
- CIGNA Indemnity
- Kaiser Permanente Medicare Plus
- Aetna Medicare Advantage HMO & PPO Plans
- CareFirst MedStar PPO
- Aetna Classic 5000PD
- POS OA
- Aetna Student Health Insurance
- Aetna Better Health of VA
- United Healthcare Choice Plus Cardiac Global
- Private Fee-for-Service Plans (PFFS)
- IH-PPO
- Humana Medicare Advantage - PPO
- MultiPlan, Inc
- M.D. IPA Preferred (POS)
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Medicare Advantage - Advantra Value (PPO)
- AMERIVANTAGE/Amerigroup Community Care
- CareFirst NASCO
- Maryland Physicians Care MCO
- Aetna Advantage 6350PD
- Choice POS II
- United Healthcare Select Plus (POS)
- Navigate
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- United Healthcare Community Plan - VA Medicaid MCO
- CIGNA HMO & Network (HMO)
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- CareFirst Administrators
- CareFirst Community Health Plan of MD
- First Health PPO
- MedStar Family Choice DC Healthcare Alliance
- Coventry of Delaware HMO/PPO
- Aetna Open Choice (PPO)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Kaiser Permanente Flexible Choice POS Cardiac Global
- OA Plus
- MedStar Family Choice DC Healthy Families
- Aetna VA Exchange
- CareFirst Group Medicare Advantage
- IH-Open POS II
- TriWest Healthcare Alliance
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- CareFirst BlueChoice HMO
- Anthem Federal Employee Program Basic
- Network OA
- Cigna Preferred Medicare (HMO)
- Great-West Healthcare POS/CIGNA
- UHC Passport
- Aetna Advantage 6350
- CIGNA POS/Network POS
- UnitedHealthcare and AARP Medicare Complete Plans
- United HealthCare Community Plan - Maryland Health Choice Program
- Optimum Choice Preferred (POS)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Elect Choice/ Open Access (POS)
- CIGNA PPO
- TRICARE East Prime
- CIGNA Connect EPO
- Kaiser Permanente Select - Added Choice
- Aetna Basic
- Kaiser Permanente Flexible Choice 3-tier POS
- CIGNA SureFit (HMO)
- Johns Hopkins Advantage MD HMO
- IH-Indemnity
- Core Essential (HMO)
- Sentara Health
- Choice Fund PPO
- OCI Direct (HMO)
- Cigna True Choice Plus Medicare (PPO)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- M.D. IPA (HMO)
- WellPoint Maryland - Maryland Health Choice
- BlueChoice Open Access
- Kaiser Permanente Select Cardiac Global
- CareFirst MedStar Select PPO
- CareFirst Dual Prime HMO-SNP
- Aetna Managed Choice (POS)
- Health Services for Children with Special Needs
- Kaiser Maryland Medicaid MCO
- Geisinger Medicare Advantage
- IH-Open POS Plus
- Jai Medical Systems - Maryland Health Choice
- AmeriHealth Caritas DC Healthy Families
- IH-POS Plus
- United Medicare Private Fee-for-Service (PFFS) plans
- Magellan Complete Care of VA - VA Medicaid MCO
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Kaiser Permanente Signature
- Kaiser Permanente Select
- Alterwood Advanatge HMO & DSNP Plans
- Erickson Advantage Plans
- CareFirst FEP Blue Focus
- First Health PPO
- Aetna Classic 3500
- UnitedHealthcare Individual Exchange Plans
- Aetna Better Health of MD
- United Healthcare Navigate Cardiac Global
- Amerigroup DC Healthy Families
- Uniformed Services Family Health Plan
- Medicare Direct
- HighMark
- IH-Network Only Plus
- Anthem Federal Employee Program Standard
- United Student Resources
- Medicare FFS
- Coventry Health Care National Network PPO
- Select HMO/HealthFund/Health Network
- Tricare Reserve Select
- Johns Hopkins Advantage MD PPO
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Advantage 5750
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Cigna Alliance Medicare (HMO)
- Johns Hopkins Advantage MD PLUS PPO
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Aetna Quality Point of Service (POS)
- Anthem BCBS Medi Blue Dual Adv
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Coventry Health Care of Virginia
- Police and Fire Clinic
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Traditional Choice (PPO)
- IH-Open HMO Option
- AmeriHealth Caritas DC Healthcare Alliance
- IH-HMO
- HealthyBlue PPO
- CareFirst Blue Card Program
- CareFirst Blue Preferred PPO
- CareFirst Maryland Indemnity or PPO
- Optimum Choice
- Aetna Worker's Compensation Network
- Beech Street PPO
- CareFirst Blue Choice Opt Out Open Access
- UnitedHealthcare Medicare Adv. Special Needs Plans
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Private Health Care Systems (PPO)
- United Healthcare Choice
- NYC Medicare Advantage Plus
- IH-EPO Plus
- Cigna Achieve Medicare (HMO C-SNP)
- TRICARE East Select
- HumanaChoice Honor's plan PPO
- CIGNA PPO Plus
- Cigna TotalCare (HMO D-SNP)
- Mamsi Life & Health (Indem./PPO)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Kaiser Permanente Signature - Added Choice
- Advantra Platinum (PPO)
- DC/MD SHOP QHP Small Business Plans
- Choice Care Network/HUMANA (PPO)
- Cigna True Choice Medicare (PPO)
- Aetna Managed Choice Open Access (POS)
- Choice POS II Open Access
- Humana Medicare Advantage - HMO Open Access
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Blue Choice Advantage
- TRICARE for Life East
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CIGNA EPO
- Aetna Signature Administrator PPO/TPA
- United Healthcare Options (PPO)
- HumanaChoice PPO
- United Healthcare Choice Plus
- IH-Open EPO Plus
- IH-POS
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Lasso Healthcare - Medicare Medical Savings Account
- Veterans Affairs Community Care Network
- Aetna Premier 200PD
- Aetna HMO
- Healthy Blue (HMO, POS)
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Humana Gold Plus HMO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
Videos
Education
Board Certification: American Board of Orthopaedic Surgery, Orthopaedic Surgery
Board Certification: American Board of Surgery, General Surgery
Fellowship: MedStar Union Memorial Hospital at Baltimore (2015)
Residency: Harvard Combined Orthopaedic Residency Program (2014)
Medical School: Johns Hopkins University School of Medicine (2009)
Awards
- Baltimore magazine, Top Doc - 2024, 2025