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About Us (Surgical Associates in Spine)

Welcome to SASpine.

SASpine (Surgical Associates in Spine) is one of the nation’s most elite spine practice management companies. We now have offices in Houston as well as the San Antonio medical center. Our CMO, Steven J. Cyr, M.D., is a spine surgeon who has gained a reputation for surgical excellence in Texas, throughout the nation, and abroad.

All of our providers are experienced at isolating the source of pain and accurately diagnosing and treating symptoms and conditions using both non-operative and operative means. We strive to treat the whole patient from the onset of pain to post-surgical rehabilitation.

Our Mission

SASpine (Surgical Associates in Spine) is devoted to creating a better everyday quality of life for all our patients by treating them with the same attention, consideration, and respect we would a family member.

Our sincere purpose is to glorify God as faithful servants who are driven to return pain-free function, and physical and emotional health to our patients through surgical and/or non-surgical interventions and to inspire and nurture the human spirit.

What Sets Us Apart

Dr. Cyr and his mid-level providers, who are hand-picked and specially trained by him, define success by the number of people who are able to live a better quality of life after treatment. In attention to his methodical and meticulous approach to surgical excellence, Dr Cyr is a man of character and compassion who believes in treating patients like family.

This reputation is apparent in the heart-felt testimonies regularly provided by patients who have received his care. In addition, he has become world renowned as a premier provider of spine surgery with success rates rarely seen elsewhere. He has been named a Texas Super Doctor, Castle-Connelly Top Spine Surgeon multiple years in a row, and America’s Top 10 Orthopaedic surgeons, amongst many other recognitions and awards. We are excited to show you the SASpine difference.

Our Doctors

Steven J. Cyr, M.D., F.A.A.O.S.

Chief Medical Officer SASpine, LLC

Anjali Jain, M.D.

Pain Management Physician

John Sladky, M.D.


Mid Level Providers

Paul B. Chen, MPAS, PA-C

Board Certified Physician Assistant

Mary Vuong, PA-C

Board Certified Physician Assistant

Marcus W. Trejo, PT

Licensed Physical Therapist


LeAnn Cyr

CEO & Founder

About Us