Chayapathy Jollu, MD
Board certified in Physical Medicine and Rehabilitation
Specialist in Interventional Spine Rehabilitation

Having earned his medical degree at Mysore Medical College in 1996, completed his residency training in Physical Medicine & Rehabilitation at the Montefiore Medical Center in 2007, and a fellowship in the subspecialty of Invasive Spine Care and Sports Medicine Injuries at Michigan Sports & Spine, PC in 2008, Dr. Jollu is extremely current and well trained in the most modern practices available. Dr. Jollu also brings an array of specialty services to Spine Pain Diagnostics Associates. He can provide EMGs, medical management, occupational medicine, prosthetics & orthotics services, as well as interventional pain management.

When not practicing, Dr. Jollu enjoys playing tennis and traveling. He has been a welcome addition to our physician staff, and his courteous and friendly nature has made our many patients feel right at home. Dr. Jollu practices at our Niagara, Oshkosh, and Berlin locations and is currently accepting new patients.

Interventional Pain Specialist

Dr. Liao is one of our finest physicians on staff at Spine Pain Diagnostics Associates. Her professionalism is the result of extensive training. Dr. Liao completed a three-year residency in Anesthesia at the Huron Hospital-Cleveland Clinic Health System in Cleveland, OH. It was here that she served as Chief Resident from January 1999 until June 1999. She also completed a Pain Management fellowship at the Cleveland Clinic Foundation.

The Upper Peninsula and Northern Wisconsin are fortunate to have Dr. Liao as one of our practicing physicians. Her services are offered throughout the Upper Peninsula of Michigan in Ishpeming, L’Anse and Escanaba as well as at our clinic in Niagara, Wisconsin. We are grateful for the assistance and insight she has provided, and she is currently accepting new patients.

Interventional Pain Specialist
Board Certified in Anesthesiology and the Subspecialty of Pain Management


Spine Pain Diagnostics Associates is proud to have Dr. Piryani on our physician staff. Practicing mainly in our Mequon and Berlin locations and occasionally in Niagara, he brings a great amount of knowledge and experience to our patients.

Dr. Piryani is Board Certified in Anestheiology and the subspecialty of Pain Management. He provides diagnosis and treatment of spinal pain and related disorders. Dr. Piryani completed a two-year residency program in Internal Medicine at Rush Medical College in Chicago, a three-year residency in Clinical Anesthesia and Pain Management, and a one-year fellowship in Pain Management at Cook County Hospital. While at Cook County Hospital of Chicago, Dr. Piryani was named Chief Resident and Resident of the Year for 1997-1998. He has shared his knowledge and research with other colleagues through presentations at professional conferences in Minneapolis and Chicago.

Our Mequon clinic is pleased to have Dr. Piryani as a consistent presence, as his professionalism is exceptional. His understanding and thoughtful demeanor is appreciated by staff and patients alike. Dr. Piryani is currently accepting new patients.

Vijay Singh, MD is the Medical Director of Spine Pain Diagnostics Associates and the Niagara Health Center (Ambulatory Surgery Center), located in Niagara, Wisconsin. He has been practicing since 1989 and provides services at our Appleton and Niagara locations.

For the past 10 years, Dr. Mortensen has been active in the St. Luke's Pain Management Center and served as its Medical Director from 1995 to 1999. Currently, he is the Medical Director of the Associated Surgical and Medical Specialists Ambulatory Surgery Center in Franklin, Wisconsin. Dr. Mortensen provides services at our Mequon location.

Interventional Pain Physician
Board Certified in Psychiatry and Neurology
Board Eligible in the subspecialty of Pain Medicine

Spine Pain Diagnostics Associates is proud to have Dr. Fadi Alhatem on our medical staff. His diverse background and education will offer his patients a comprehensive approach to their painful conditions.

After completing his residency in psychiatry, Dr. Alhatem went on to complete two years of fellowship training in interventional pain medicine.

Dr. Alhatem’s knowledge and pleasant personality helps his patients feel confident and at ease. Dr. Alhatem’s goal is to help his patients understand their pain and work with them to develop a plan to improve their pain, function, and overall quality of life. Dr. Alhatem is currently accepting new patients.