About Me
Growing up, I always knew that I wanted to be a doctor, particularly a surgeon. As a medical student, I was drawn to anatomy and neurology. I found the greatest satisfaction in orthopedics because it allows me to help patients move and regain function through innovative surgical techniques. Within orthopedics I gravitated toward spine surgery and microscopic peripheral nerve surgery, which combined my interests in neuroanatomy and orthopedics with my desire to optimize patient function. Along the way I have developed a national and international reputation in cervical, thoracic, and lumbar spinal surgery.
My clinical expertise includes major cervical and thoracolumbar spinal deformity in adults and children, degenerative spine conditions, and minimally invasive and robotic spine surgery. I have unique dual training in spine and peripheral nerve disorders, and I am also active in NYU Langone’s brachial plexus surgery program for adults and children.
I have been named one of the top spine surgeons at academic medical centers multiple times and have published many articles in peer-reviewed scientific journals. I am active in clinical research as a member of the International Spine Study Group, which is composed of leading physicians in cervical and thoracolumbar spinal deformity surgery. I am also an active member of the Cervical Spine Research Society, North American Spine Society, Scoliosis Research Society, and the American Academy of Orthopaedic Surgeons.
I believe a special bond needs to be cultivated between a doctor and a patient. I endeavor to treat every patient as I would want my own family treated, with compassion, dignity, and the highest level of care. As chief of NYU Langone’s Division of Spine Surgery, these are the principles that I pursue in all my patient interactions, and I encourage all our members to do the same. We are thankful for the opportunity to offer our patients the best in comprehensive spine care.
Conditions and Treatments
Conditions
- abnormal gait
- ankylosing spondylitis
- brachial plexus injuries
- degenerative disc disease
- foot drop
- herniated disc
- kyphosis with lordosis
- lower back pain
- lumbar radiculopathy
- lumbar spinal stenosis
- lumbar spine disc herniation
- neck pain
- osteoarthritis of spine
- scoliosis & kyphosis
- spinal arthritis
- spinal cord compression
- spinal deformity
- spinal injury
- spinal stenosis
- spine fracture
- spondyloarthropathy
- spondylolisthesis
- spondylolysis
- thoracic disc prolapse
Treatments
- bloodless surgery
- laminectomy
- laminotomy
- minimally invasive surgery
- nerve decompression
- spinal cord procedures
- spinal fusion
- splint fixation
Learn more about conditions we treat at NYU Langone:
Brachial Plexus Injuries , Degenerative Disc Disease , Herniated Disc , Neck Pain , Osteoarthritis of the Spine , Scoliosis & Kyphosis , Spinal Stenosis , Spondylolisthesis , SpondylolysisCredentials
Positions
- Professor, Department of Neurosurgery at NYU Grossman School of Medicine
- Professor, Department of Orthopedic Surgery at NYU Grossman School of Medicine
- Chief, Division of Spine Surgery, Department of Orthopedic Surgery
Board Certifications
- American Board of Orthopedic Surgery - Orthopedic Surgery, 2011
Education and Training
- Fellowship, New York University, Spine Surgery, 2009
- Fellowship, Duke University, Hand Surgery, 2008
- Residency, Columbia University College of Physicians & Surgeons, Orthopedics/Surgery, 2007
- MD from Columbia University, 2001
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Edit profileInsurance Plans Accepted
This provider accepts the following insurance plans.
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Aetna
- Aetna HMO
- Aetna Indemnity
- Aetna International
- Aetna Medicare Advantage
- Aetna Open Access EPO
- Aetna Open Access HMO
- Aetna POS
- Aetna POS (American Express Employer)
- Aetna PPO
- Aetna Signature Administrators PPO
- Aetna Student Plan
- Allied
- Chesterfield Resources Inc
- Christian Brothers Services
- CoreSource
- Nippon Life of America-Aetna
- Nippon Life-Aetna
- Starmark
- WellNet
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Amerigroup Of New Jersey
- Amerigroup Community Care New Jersey
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Amida Care
- Amida Care Medicaid
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Anthem Blue Cross Blue Shield
- Anthem BCBS CT PPO
- Anthem BCBS CT Pathway PPO
- BCBS Blue Access EPO Large Group
- BCBS Blue Access EPO Small Group
- BCBS Blue Access GEPO Small Group
- BCBS Blue Access PPO Large Group
- BCBS EPO
- BCBS EPO (BlackRock Employees)
- BCBS EPO (LICH Employees)
- BCBS EPO - Empire EPO (NYU Langone Employees)
- BCBS EPO - Empire EPO (Sunset Park/Family Health Center Employees)
- BCBS EPO - Empire NYU Care (NYU Langone Employees)
- BCBS EPO - Empire NYU Care (Sunset Park/Family Health Center Employees)
- BCBS Federal Program
- BCBS Florida Blue Care HMO
- BCBS Florida Blue Medicare PPO
- BCBS Florida Blue Options PPO
- BCBS Florida Blue Select
- BCBS Florida MyBlue HMO
- BCBS Florida Simply Blue
- BCBS Florida Traditional PPC
- BCBS HMO
- BCBS Indemnity
- BCBS Local 32BJ Employees
- BCBS Mediblue Medicare HMO
- BCBS Mediblue Medicare PPO
- BCBS Mediblue Select HMO/Extra HMO
- BCBS POS
- BCBS PPO
- BCBS PPO (BlackRock Employees)
- BCBS PPO (LICH Employees)
- BCBS PPO - Empire PPO (Sunset Park/Family Health Center Employees)
- BCBS PPO/EPO Small Group
- New York Hotel Trades
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Centerlight Healthcare
- CenterLight Healthcare DIRECT
- CenterLight Healthcare PACE
- CenterLight Healthcare Select
- Centerlight Pace Medicare HMO
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Centers Plan For Healthy Living
- Centers Plan For Healthy Living
- Centers Plan For Healthy Living Medicaid Advantage Plus HMO D-SNP
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Cigna
- Apwu Health Plan
- Cigna - Humana
- Cigna Great West PPO
- Cigna HMO
- Cigna Indemnity
- Cigna Managed Care/POS
- Cigna Medicare Advantage
- Cigna NALC
- Cigna Open Access
- Cigna Open Access PPO
- Cigna Oscar
- Cigna PPO
- Cigna Premier Plus
- Great West HMO
- Kaiser Permanente
- MVP-Cigna Network
- Wellfleet-NYU Student
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Connecticare
- Connecticare Bridge
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Elderplan
- Elderplan
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Emblem
- Emblem Select Care Bronze Small Group
- Emblem Select Care EPO
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- Emblem Select Care HMO
- Emblem Select Care PPO
- Emblem Select Care Platinum Small Group
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First Health
- First Health PPO
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GHI
- American Plan Administrators
- GHI CBP (City of New York Employees)
- GHI Emblem Health EPO
- GHI Emblem Health PPO
- GHI HMO
- GHI HMO Medicare
- GHI Medicare PPO
- GHI Medicare Supplement
- GHI Network Access - Benefit Services of PA
- GHI Network Access - Humana
- GHI Network Access - Total Plan Concepts
- IUOE Local 14-14B
- Wlny-TV Inc.
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HIP
- HIP Access I
- HIP Access II
- HIP Bridge
- HIP Child Health Plus
- HIP EPO
- HIP HMO
- HIP Medicare Supplement
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- HIP PPO
- HIP Prime Basic Exchange
- HIP Prime Bronze
- HIP Prime Bronze Exchange
- HIP Prime Catastrophic Exchange
- HIP Prime Gold
- HIP Prime Gold Exchange
- HIP Prime Platinum
- HIP Prime Platinum Exchange
- HIP Prime Silver
- HIP Prime Silver Exchange
- HIP VIP Medicare Bold
- HIP VIP Medicare Prime
- Vytra HMO
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Healthfirst
- Health And Recovery Plan (Harp)
- Healthfirst Bronze Leaf Exchange
- Healthfirst Bronze Total, Pro, Plus EPO
- Healthfirst Child Health Plus
- Healthfirst Essential Plan 1 & 2
- Healthfirst Essential Plan 3 & 4
- Healthfirst Gold Leaf Exchange
- Healthfirst Gold Total, Pro, Plus EPO
- Healthfirst Green Leaf Exchange
- Healthfirst Medicaid
- Healthfirst Medicare
- Healthfirst Medicare/NYU Risk
- Healthfirst Personal Wellness Plan
- Healthfirst Platinum Leaf Exchange
- Healthfirst Platinum Total, Pro, Plus EPO
- Healthfirst Silver Leaf Exchange
- Healthfirst Silver Total, Pro, Plus EPO
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Horizon Blue Cross Blue Shield
- Horizon NJ Direct
- Horizon NJ Direct HMO
- Horizon NJ Medicaid HMO
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Humana
- Humana Medicare Advantage
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Local 1199
- Local 1199 - NYU Hospital Member Choice
- Local 1199 PPO
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Longevity Health Plan
- Longevity Health Plan Medicare
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Magnacare
- Magnacare PPO
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Medicaid of New Jersey - Molina
- Medicaid NJ/Molina
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Medicare
- Medicare Part A and B
- Medicare Part B
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MetroPlusHealth
- MetroPlusHealth Bronze Plus Plan Exchange
- MetroPlusHealth Child Health Plus
- MetroPlusHealth Essential Plan 1 and 2
- MetroPlusHealth Essential Plan 3 and 4
- MetroPlusHealth Gold
- MetroPlusHealth Gold Plus Plan Exchange
- MetroPlusHealth Goldcare
- MetroPlusHealth Medicaid Managed Care
- MetroPlusHealth Medicare
- MetroPlusHealth Medplus Plan Exchange
- MetroPlusHealth Platinum Plus Plan Exchange
- MetroPlusHealth Silver Plus Plan Exchange
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Multiplan
- AXA Assistance USA
- Administrative Concepts
- Beech Street PPO
- Diversified Administration Corporation
- Fiserv Health
- GEHA
- Global Excel
- Global Health
- Guardian Life Insurance Co Of America
- Health Net Of California
- Health Republic Of NJ
- Insurance Design Administrators
- Kaiser Foundation
- Kaiser Permanente
- Meritain Health
- Multiplan PPO
- Multiplan-Capital Dist Phys Health
- Mutual Of Omaha
- Nippon Life Ins Co
- PHCS
- Professional Benefit Admin
- Qualcare Inc
- Screen Actors Guild
- Teamsters Allied Benefits
- US Life Insurance Company
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NYSHIP - The Empire Plan
- NYS Health Insurance Plan - The Empire Plan, Excelsior Plan, NY Student Employee Health Plan
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Oxford
- Oxford Health Plans Freedom
- Oxford Health Plans Liberty
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POMCO Insurance Company
- POMCO Insurance Company
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Partners Health Plan Inc
- Partners Health Plan FIDA
- Partners Health Plan Medicaid
- Partners Health Plan Medicare
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Qualcare Inc.
- Qualcare Direct
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Railroad Medicare
- Palmetto GBA Railroad Medicare
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River Spring Health Plan
- River Spring Medicare HMP SNP
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Sedgwick WTC
- World Trade Center - Sedgwick
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Senior Whole Health
- Senior Whole Health Medicare Advantage
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Tricare
- TriWest
- Tricare
- US Family Health Plan
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United Healthcare
- AARP Medicare Complete
- Bind Benefits inc
- Oxford Health Plans Medicare Advantage
- UHC Medicare Complete Choice Regional PPO
- UMR
- United Healthcare (NY University Care Plan)
- United Healthcare AARP
- United Healthcare All Savers
- United Healthcare Choice
- United Healthcare Choice (AMEX employees)
- United Healthcare Choice (Blackrock employees)
- United Healthcare Choice (CBS employees)
- United Healthcare Choice (Simon
- United Healthcare EPO
- United Healthcare EPO (NYU Langone Health Employees)
- United Healthcare Golden Rule Insurance
- United Healthcare HMO
- United Healthcare Healthscope
- United Healthcare Indemnity
- United Healthcare Indemnity (NYU Langone Health Employees)
- United Healthcare Medicare
- United Healthcare Navigate
- United Healthcare Nexus
- United Healthcare Nexus (Amex Employees)
- United Healthcare POS
- United Healthcare PPO
- United Healthcare Plus (NYU Langone Health Employees)
- United Healthcare Student Resources
- United Healthcare Student Resources (NYU)
- United Healthcare Value, Advantage and HDHP (New York University employees)
- UnitedHealthcare Choice (NY Power Authority Employees)
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VA Community Care Network
- VA CCN Optum
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VNS Choice Advantage
- VNS Medicare Advantage
- VNS NY Choice Select Health
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Village Care
- VillageCare
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WTC Health Program
- NY Fire Department - WTC
- WTC Health Program
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Wellcare
- WellCare Medicare
Themistocles Protopsaltis, MD does not accept insurance.
Locations and Appointments
Video Visits
See a doctor from your mobile device instead of an in-person appointment. Learn more about video visits.
Schedule a Video VisitNYU Langone Orthopedic Center
333 East 38th Street, 6th Floor, New York, NY 10016
194 Main Street, Millburn, NJ 07041
NYU Langone Orthopedic Surgery-Hackensack
5 Summit Avenue, Suite 200, Hackensack, NJ 07601
Research My Research
Interests
cervical radiculopathy , double crush phenomenon, peripheral neuropathies, brachial plexus injuries, anterior cervical decompression and fusion , ACDF, cervical laminectomy and fusion , cervical foramenotomy , cervical disc replacement, cervical disc motion preservation , cervical spine deformity , neck pain, microscopic lumbar discectomy, lumbar laminectomy and decompression, thoracic and lumbar spine decompression and fusion, microsurgery, peripheral nerve decompression, neurolysis, vascularized free fibula transfer
Academic Contact
Academic office
301 East 17th Street
Fourth Floor
New York, NY 10003
Phone
Research Interests Timeline
Clinical Trials and Research Studies
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Prospective Randomized Three Arm Study of lumbar Spinal Fusion Graft Efficacy: Bone marrow aspirate concentrate & Allograft versus Recombinant Bone Morphogenetic Protein-2 (BMP) versus Control Group
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Multi-Center Prospective Evaluation of Complex Adult Spinal Deformity Surgery (CADS)
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Multi-center Prospective Single Position Spine Surgery Outcomes Registry
Publications
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Diebo, Bassel G; Singh, Manjot; Balmaceno-Criss, Mariah; Daher, Mohammad; Lenke, Lawrence G; Ames, Christopher P; Burton, Douglas C; Lewis, Stephen M; Klineberg, Eric O; Lafage, Renaud; Eastlack, Robert K; Gupta, Munish C; Mundis, Gregory M; Gum, Jeffrey L; Hamilton, Kojo D; Hostin, Richard; Passias, Peter G; Protopsaltis, Themistocles S; Kebaish, Khaled M; Kim, Han Jo; Shaffrey, Christopher I; Line, Breton G; Mummaneni, Praveen V; Nunley, Pierce D; Smith, Justin S; Turner, Jay; Schwab, Frank J; Uribe, Juan S; Bess, Shay; Lafage, Virginie; Daniels, Alan H; ,
European spine journal. 2024 Dec ; 33(12):4627-4635
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Daniels, Alan H; Singh, Manjot; Daher, Mohammad; Balmaceno-Criss, Mariah; Lafage, Renaud; Gupta, Munish C; Gum, Jeffrey L; Hamilton, Kojo D; Passias, Peter G; Protopsaltis, Themistocles S; Kebaish, Khaled M; Lenke, Lawrence G; Ames, Christopher P; Klineberg, Eric O; Kim, Han Jo; Shaffrey, Christopher I; Smith, Justin S; Line, Breton G; Schwab, Frank J; Bess, Shay; Lafage, Virginie; Diebo, Bassel G
Journal of neurosurgery. Spine. 2024 Nov 15; 1-10
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Daniels, Alan H; Singh, Manjot; Daher, Mohammad; Balmaceno-Criss, Mariah; Lafage, Renaud; Gupta, Munish C; Gum, Jeffrey L; Hamilton, Kojo D; Passias, Peter G; Protopsaltis, Themistocles S; Kebaish, Khaled M; Lenke, Lawrence G; Ames, Christopher P; Klineberg, Eric O; Kim, Han Jo; Shaffrey, Christopher I; Smith, Justin S; Line, Breton G; Schwab, Frank J; Bess, Shay; Lafage, Virginie; Diebo, Bassel G
Journal of neurosurgery. Spine. 2024 Nov 15; 1-10