The Spine Specialist's Team


Dr. Louis N. Radden, D.O.

Reconstructive Spine Surgeon

Dr. Louis N. Radden, DO, of Spine Specialists of Michigan is an expert in the diagnosis and treatment of complex back and spine conditions. Dr. Radden uses both surgical and non-surgical solutions to manage complex spinal problems, and for patients with chronic pain, he is also an expert in pain management.

While Dr. Radden uses state-of-the-art solutions to treat complex conditions and injuries to the spine and musculoskeletal regions, he begins with the tried and true approach of listening to and spending time with each patient to understand symptoms and concerns before making a diagnosis and treatment plan.

Dr. Radden has been practicing in Michigan since 2006 and is Board Certified in Osteopathic Medicine and Surgery.


  • Michigan State University College of Osteopathic Medicine
  • University of Medicine and Dentistry of New Jersey: Orthopedic Surgery
  • Duke University/Duke University Medical Centers: Orthopedic/Neurosurgery Spine Fellowship
  • Diplomat of National Board of Osteopathic Medical Examiners
  • Member, American Board of Osteopathic Orthopedic Surgeons
  • Member, Michigan Board of Osteopathic Medicine and Surgery
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Dr. Michael C. Bagley, D.O.

Orthopedic Surgeon

Dr. Bagley, in private practice with Spine Specialists of Michigan, is a Board-certified orthopedic surgeon specializing in knee and shoulder procedures. A graduate of Des Moines University College of Osteopathic Medicine, he completed a rotating internship and an orthopedic residency at Mt. Clemens General Hospital, followed by a fellowship in orthopedic surgery at the Lake Tahoe Orthopedic Institute.

In addition to his Michigan license, Dr. Bagley maintains active licenses in Arizona, Colorado, and Nevada.  Performing sports medicine and partial and total joint replacement surgeries, he utilizes latest technology and techniques to reduce recovery time and enhance outcomes.

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Dr. Gary Gilyard, M.D.

Orthopedic Surgeon: Board Certified, Orthopedic Sports Medicine, Fellowship Trained

Dr. Gary Gilyard M.D. is an Orthopedic sports medicine fellowship trained specialist.  He treats complex shoulder, knee, ankle, limb malalignment and articulate cartilage lesion problems.  Each and every patient is carefully listened to then a specific treatment plan is formulated whether operative or non-operative to address every problem


  • Wesleyan University ( BA liberal arts)
  • Tufts Univ Medical School (M.D)
  • George Wash Univ ( Ortho residency)
  • New York Univ. ( Sports Fellowship)

Provided coverage for:

  • NY Islanders ( NHL)
  • NJ Devils. ( NHL)
  • NJ Nets (NBA)
  • George Wash Univ Men’s basketball
  • NYU athletics
  • Detroit Country Day athletics
  • Former head coach Michigan Spartans
  • Girls AAU basketball 12 years
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Dr. Christopher R. Koziara, MD, MS

Orthopedic Surgeon

Board-certified orthopedic surgeon, Christopher R. Koziara, MD, MS, brings over a decade of experience in Orthopedic Surgery to Spine Specialists of Michigan. Prior to pursuing a career in medicine, Dr. Koziara obtained advanced degrees in Electrical Engineering, Mathematics, and Systems Engineering. He subsequently entered the field of engineering and worked in the auto industry where he was the co-inventor on three United States Patents.
Dr. Koziara is a graduate of Wayne State University School of Medicine. He completed his Orthopedic Surgery residency at Beaumont Health / Wayne State University School of Medicine and then spent a year in the sub-specialty of Orthopedic Surgery - Foot and Ankle under the directorship of Arthur Manoli II, MD. Dr. Koziara enjoys treating patients of all ages and ensures they receive optimal medical care. His special interests include arthritis, total joint replacement, joint arthroscopy, foot and ankle surgery (arthritis, sports medicine, adult reconstruction), and hand surgery (carpal tunnel, cubital tunnel, trigger finger, Dupuytren’s contracture). When he isn’t busy treating patients, Dr. Koziara enjoys spending time with his wife and four children and staying active.

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Syed Tajuddin M.D., M.P.H.

Pain Management, Fellowship Trained.

Syed Tajuddin M.D., M.P.H. completed his residency at the prestigious University Hospitals Case Medical Center Case Western Reserve University School of Medicine in Cleveland, Ohio. He also did additional training in Head and Neck Cancer, Radiation Oncology and Pain Management at Henry Ford Hospital in Detroit, MI and University Hospitals Case Western Reserve University School of Medicine.

He has worked extensively with Dr. Salim Hayek at University Hospitals Case Medical Center Pain Management on several clinical trials looking at combination trialing at Cleveland Clinic and University Hospitals in patients with failed back surgery syndrome (FBSS) who were implanted with bupivacaine/hydromorphone and who were all trialed from the beginning with continuous catheter trial using bupivacaine/hydromorphone. The purpose of this is to highlight/improve evidence for combination trialing.

He completed the National Institute of Health Advanced Research Fellowship in Head and Neck Cancer at the University of Michigan University Hospitals Department of Otolaryngology Head and Neck Surgery in Ann Arbor, Michigan.

Dr. Tajuddin is involved in outcome research which was started during his time at The Cleveland Clinic Foundation and has authored numerous publications in peer review journals, textbook chapters and presented his research at American Medical Association’s National Meeting.

Dr. Tajuddin has his Master of Public Health in Healthcare Administration and Policy from Case Wester Reserve University School of Medicine. He is also a Lean Sigma Certified Physician Practitioner. Dr Tajuddin received additional training in Medical Spine at The Cleveland Clinic Foundation with Dr. Edward Benzel. Dr Tajuddin’s primary focus is in Medical Spine and Pain Management.

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Adrienne Vassallo, NP-C

Nurse Practitioner

Adrienne Vassallo is a Nurse Practitioner board certified through the American Academy of Nurse Practitioners as of March of 2021. She received her Bachelor of Arts degree from Kalamazoo College majoring in Biology in 2011, her Bachelors of Nursing degree from Kent State University in 2016, and her Masters of Science in Nursing degree within the Adult Gerontology Primary Care NP program from Eastern Michigan University in 2020.

Prior to joining our team, Adrienne worked at University of Michigan Hospital for the past 10 years; 5 years as a Perioperative Technician and Anesthesia Technician and the most recent 5 years as a General Medicine Telemetry Registered Nurse specializing in Oncology care.

Adrienne comes to our team with enthusiasm for orthopedic patients stemming from her background in collegiate swimming. She approaches her patients in a holistic manner with focus on evidenced-based care and promotion of independence.

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Dima Sprague, PA-C

Physicians Assistant

Dima Sprague is a certified Physician's Assistant. She graduated Summa Cum Laude with a Bachelor of Science in Biomedical Science with a minor in Chemistry in 2007 and completed a Master of Science in Medicine, Physician Assistant in 2012 from Western Michigan University, Kalamazoo, Michigan. Dima specializes in Orthopedic Sports Medicine and has worked with Dr. Gilyard for the last seven years.


Halimeh Farhat, PA-C

Physicians Assistant

Halimeh Farhat is a board-certified Physician Assistant through The National Commission on Certification of Physician Assistants (NCCPA). Halimeh graduated with High Distinction from the University of Michigan Dearborn with a Bachelor of Arts Degree. She obtained her Master of Medical Science in Physician Assistant Studies degree from Midwestern University in Downers Grove, IL. In addition to her Michigan license, Halimeh maintains an active license in the state of Illinois. She is also an active member of the American Academy of Physician Assistants (AAPA). Halimeh completed an elective rotation specializing in Orthopedic Surgery. In her free time Halimeh enjoys exercising, reading, and spending time with family and friends. She is excited to be a part of The Spine Specialists of Michigan team and is looking forward to providing specialized orthopedic care to all her patients.

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Mital Tamakuwala, PT, DPT

Physical Therapist

Mital Tamakuwala is a licensed physical therapist. She completed her Bachelor of Physical Therapy in 2002 at M.S. University, India and completed a Doctorate in Physical Therapy in 2016 at Utica College, NY. Prior to joining our team Mital worked at an outpatient Physical Therapy Clinic in Ypsilanti, MI. She also worked overseas as a clinical instructor and rehab director. Mital enjoys running, hiking, and spending time with her husband.

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Gino Liao, PTA

Physical Therapist Assistant

I am a Physical Therapist Assistant and I love to help people any way I can. I graduated from Baker College in Allen Park, MI. Prior to joining the Spine Specialists, I spent six years of my career in a Neuro outpatient clinic, and four years in skilled nursing facilities around the metro Detroit area. Outside of my passion for physical therapy, I practice martial arts and enjoy nature photography. I am excited to join the Spine Specialists of Michigan and help our patients reach their goals!