Bayan Aghdasi, MD Orthopaedic Spine Surgeon Board Certified . Fellowship Trained

Dr. Aghdasi is committed to advancing patient care through minimally invasive spine surgery, utilizing the latest techniques to optimize recovery and improve outcomes. He values innovation and continuous learning, ensuring his approach remains at the forefront of modern spinal care. Beyond his clinical expertise, he is deeply invested in mentorship and community engagement, particularly in supporting underserved youth. Through structured shadowing opportunities and weekly mentorship, he fosters academic and personal growth, inspiring the next generation to pursue careers in medicine. His dedication to both surgical excellence and community impact reflects his belief in the power of healing—both in and beyond the operating room.

Dr. Aghdasi completed his medical training at Loyola University Chicago, followed by residency at the University of Virginia. Dr. Aghdasi further honed his expertise with a spine surgery fellowship at Johns Hopkins University, focusing on complex spinal pathologies and advanced surgical techniques.

With over a decade of experience, he provides expert, patient-focused care for a wide range of spine conditions, including degenerative spine disorders, herniated discs, spinal deformities, and trauma-related injuries. Dr. Aghdasi emphasizes clear communication, helping patients understand their diagnoses and treatment options while developing individualized plans that balance safety, effectiveness, and long-term outcomes.

His philosophy places patient outcomes at the heart of every decision. He prioritizes prevention through lifestyle, nutrition, exercise, and holistic well-being, and, when surgery is necessary, he selects the least invasive option to restore function. Dr. Aghdasi treats each patient as a family member, combining compassion and innovation to achieve the highest quality of life.

Professional Experience

08/2020 - Present

Sutter Gould Medical Foundation

Chairman, Department of Surgery, Tracy, CA
Director of Spine Surgery, Tracy, CA
Spine Surgeon, Department of Orthopedic Surgery, Tracy/Stockton/Modesto, CA

Board Certification

07/2023

American Board of Orthopaedic Surgery, Board Certified

Advanced Specialty Training

08/2019-07/2020

Johns Hopkins University Spine Surgery Fellowship

Adult Deformity Techniques and Minimally Invasive Surgery, Baltimore MD

Speciality Training

06/2019

Orthopaedic Surgery Residency, University of Virginia (UVA)

Medical Education

08/2008-06/2013

Loyola University Chicago, Stritch School of Medicine (LUMC)

Medical Doctor (MD), Chicago IL

Undergraduate Education

07/2003-06/2008

University of California in Los Angeles(UCLA)

Philosophy Major, Bachelor of Arts (BA), Los Angeles CA

Honors/Awards

07/2003-06/2008

Graduated UCLA Cum Laude

Dean’s Honor List, Annually 2003-2008

Orthopaedic In-Training Examination (OITE)

OITE Scores:

91st percentile PGY3 class
87th percentile PGY5 class

United States Medical Licensing Examination (USMLE)

2010

USMLE Step 1 Score:

254 (99th percentile)

Medical College Admissions Test

2008

MCAT Score:

36 Q (97th percentile)

Professional Societies

Member:

North American Spine Society (NASS)
American Association of Orthopaedic Surgeons (AAOS)

Publications

Patient-reported Outcomes Following Surgical Intervention for Adolescent Idiopathic Scoliosis: A Systematic Review and Meta-Analysis. Aghdasi B, Bachmann KR, Clark D, Koldenhoven R, Sultan M, George J, Singla A, Abel MF. Clin Spine Surg. 2019 Mar 28. doi: 10.1097/BSD.0000000000000822.
Link protein N-terminal peptide and fullerol promote matrix production and decrease degradation enzymes in rabbit annulus cells. Yeh CH, Chen D, Aghdasi B, Xiao L, Ding M, Jin L, Li X. Connect Tissue Res. 2017 May 16:1-10. doi: 10.1080/03008207.2017.1330333.
Nanoparticle fullerol alleviates radiculopathy via NLRP3 inflammasome and neuropeptides. Jin L, Ding M, Oklopcic A, Aghdasi B, Xiao L, Li Z, Jevtovic-Todorovic V, Li X. Nanomedicine. 2017 Aug;13(6):2049-2059. doi: 10.1016/j.nano.2017.03.015. Epub 2017 Apr 9.
Dynamic Evaluation of the Cervical Spine and the Spinal Cord of Symptomatic Patients Using a Kinetic Magnetic Resonance Imaging Technique. Xiong C, Daubs MD, Scott TP, Phan KH, Suzuki A, Ruangchainikom M, Roe AK, Aghdasi B, Tan Y, Wang JC. Clin Spine Surg. 2016 Sep 27.
Growth-Factor Nanocapsules That Enable Tunable Controlled Release for Bone Regeneration. Tian H, Du J, Wen J, Liu Y, Montgomery SR, Scott TP, Aghdasi B, Xiong C, Suzuki A, Hayashi T, Ruangchainikom M, Phan K, Weintraub G, Raed A, Murray SS, Daubs MD, Yang X, Yuan XB, Wang JC, Lu Y. ACS Nano. 2016 Aug 23;10(8):7362-9. doi: 10.1021/acsnano.5b07950. Epub 2016 Jul 19
The Evaluation and Observation of "Hidden" Hypertrophy of Cervical Ligamentum Flavum, Cervical Canal, and Related Factors Using Kinetic Magnetic Resonance Imaging. Zeng C, Xiong J, Wang JC, Inoue H, Tan Y, Tian H, Aghdasi B. Global Spine J. 2016 Mar;6(2):155-63. doi: 10.1055/s-0035-1557140. Epub 2015 Jul 9.
The Occupancy of the Componentsin the Cervical Spine and Their Changes with Extension and Flexion. Sayıt E, Aghdasi B, Daubs MD, Wang JC. Global Spine J. 2015 Oct;5(5):396-405. doi: 10.1055/s-0035- 1550089. Epub 2015 May 15.
The effect of bone morphogenetic protein-2 injection at different time points on intervertebral disk degeneration in a rat tail model. Inoue H, Montgomery SR, Aghdasi B, Kaner T, Tan Y, Tian H, Terrell R, Wang JC, Daubs MD. J Spinal Disord Tech. 2015 Feb;28(1):E35-44. doi: 0.1097/BSD.0000000000000141.
Effect of head and neck positioning on cerebral perfusion during shoulder arthroscopy in beach chair position. Salazar D, Sears B, Acosta A, Aghdasi B, Francois A, Tonino P, Marra G. J Surg Orthop Adv. 2014 Summer;23(2):83-9.
Effect of cervical kyphotic deformity type on the motion characteristics and dynamic spinal cord compression. Ruangchainikom M, Daubs MD, Suzuki A, Hayashi T, Weintraub G, Lee CJ, Inoue H, Tian H, Aghdasi B, Scott TP, Phan KH, Chotivichit A, Wang JC. Spine (Phila Pa 1976). 2014 May 20;39(12):932-8. doi: 10.1097/BRS.0000000000000330.
A novel osteogenic oxysterol compound for therapeutic development to promote bone growth: activation of hedgehog signaling and osteogenesis through smoothened binding. Montgomery SR, Nargizyan T, Meliton V, Nachtergaele S, Rohatgi R, Stappenbeck F, Jung ME, Johnson JS, Aghdasi B, Tian H, Weintraub G, Inoue H, Atti E, Tetradis S, Pereira RC, Hokugo A, Alobaidaan R, Tan Y, Hahn TJ, Wang JC, Parhami F. J Bone Miner Res. 2014 Aug;29(8):1872-85. doi: 10.1002/jbmr.2213
Migration inhibitory factor enhances inflammation via CD74 in cartilage end plates with Modic type 1 changes on MRI. Xiong C, Huang B, Cun Y, Aghdasi BG, Zhou Y. Clin Orthop Relat Res. 2014 Jun;472(6):1943-54. doi: 10.1007/s11999-014-3508-y. Epub 2014 Feb 26
Dynamic changes of the ligamentum flavum in the cervical spine assessed with kinetic magnetic resonance imaging. Sayit E, Daubs MD, Aghdasi B, Montgomery SR, Inoue H, Wang CJ, Wang BJ, Phan KH, Scott TP. Global Spine J. 2013 Jun;3(2):69-74. doi: 10.1055/s-0033-1337121. Epub 2013 Mar 19.
Lumbar clinical adjacent segment pathology: predilection for proximal levels. Celestre PC, Montgomery SR, Kupperman AI, Aghdasi B, Inoue H, Wang JC. Spine (Phila Pa 1976). 2014 Jan 15;39(2):172-6. doi: 10.1097/BRS.0000000000000094.
The Compensatory Relationship of Upper and Subaxial Cervical Motion in the Presence of Cervical Spondylosis. Hayashi T, Daubs MD, Suzuki A, Scott TP, Phan K, Aghdasi B, Ruangchainikom M, Hu X, Lee C, Takahashi S, Shiba K, Wang JC. Clin Spine Surg. 2016 May;29(4):E196-200. doi: 10.1097/BSD.0b013e3182aab240.
. Secreted phosphoprotein 24 kD (Spp24) and Spp14 affect TGF-β induced bone formation differently. Tian H, Bi X, Li CS, Zhao KW, Brochmann EJ, Montgomery SR, Aghdasi B, Chen D, Daubs MD, Wang JC, Murray SS. PLoS One. 2013 Aug 26;8(8):e72645. doi: 10.1371/journal.pone.0072645. eCollection 2013.
BMP-2 adverse reactions treated with human dose equivalent dexamethasone in a rodent model of soft tissue inflammation. Xiong C, Daubs MD, Montgomery SR, Aghdasi B, Inoue H, Tian H, Suzuki A, Tan Y, Hayashi T, Ruangchainikom M, Chai T, Corey M, Wang JC. Spine (Phila Pa 1976). 2013 Sep 1;38(19):1640-7. doi: 10.1097/BRS.0b013e31829cf348.
Prevalence and motion characteristics of degenerative cervical spondylolisthesis in the symptomatic adult. Suzuki A, Daubs MD, Inoue H, Hayashi T, Aghdasi B, Montgomery SR, Ruangchainikom M, Hu X, Lee CJ, Wang CJ, Wang BJ, Nakamura H. Spine (Phila Pa 1976). 2013 Aug 1;38(17):E1115-20. doi: 10.1097/BRS.0b013e31829b1487
Factors affecting dynamic foraminal stenosis in the lumbar spine. Singh V, Montgomery SR, Aghdasi B, Inoue H, Wang JC, Daubs MD. Spine J. 2013 Sep;13(9):1080-7. doi: 10.1016/j.spinee.2013.03.041. Epub 2013 May 10
Cerebral desaturation events during shoulder arthroscopy in the beach chair position: patient risk factors and neurocognitive effects. Salazar D, Sears BW, Aghdasi B, Only A, Francois A, Tonino P, Marra G. J Shoulder Elbow Surg. 2013 Sep;22(9):1228-35. doi: 10.1016/j.jse.2012.12.036. Epub 2013 Feb 15.
The effect of corticosteroid administration on soft-tissue inflammation associated with rhBMP-2 use in a rodent model of inflammation. Tan Y, Montgomery SR, Aghdasi BG, Inoue H, Kaner T, Tian H, Terrell R, Zhang X, Wang JC, Daubs MD. Spine (Phila Pa 1976). 2013 May 1;38(10):806-13. doi: 10.1097/BRS.0b013e31827eca09
A review of demineralized bone matrices for spinal fusion: the evidence for efficacy. Aghdasi B, Montgomery SR, Daubs MD, Wang JC. Surgeon. 2013 Feb;11(1):39-48. doi: 10.1016/j.surge.2012.08.001. Epub 2012 Oct 4. Review
Kinetic magnetic resonance imaging analysis of lumbar segmental mobility in patients without significant spondylosis. Tan Y, Aghdasi BG, Montgomery SR, Inoue H, Lu C, Wang JC. Eur Spine J. 2012 Dec;21(12):2673-9. doi: 10.1007/s00586-012-2387-8. Epub 2012 Jun 7.
Analysis of Relationship between Paraspinal Muscle Fatty Degeneration and Cervical Spine Motion Using Kinetic Magnetic Resonance Imaging. Inoue H, Montgomery S, Aghdasi B, Tan Y, Tian H, Jian X, Terrell R, Singh V, Wang JC. Global Spine J. 2012 Mar;2(1):33-8. doi: 10.1055/s-0032-1307253.
Fetal cardiac circulation in isolated aortic atresia assessed with ultrasound. Sayit AT, Ipek A, Kurt A, Aghdasi BG, Arslan H, Gümüş M. J Turk Ger Gynecol Assoc. 2012 Dec 1;13(4):281-3. doi: 10.5152/jtgga.2012.47. eCollection 2012.

About Dr. Aghdasi