Expert Care for Pain Relief
Pain, Spine & Joint Center of the Alleghenies
Discover comprehensive solutions for managing pain and enhancing your quality of life with our dedicated team of specialists. At the Pain, Spine & Joint Center of the Alleghenies, we are committed to helping residents of central and northwestern Pennsylvania find relief from both chronic and acute pain.
Our compassionate team provides personalized, evidence-based treatment plans tailored to each patient’s unique needs, focusing on spine disorders, joint pain, neuropathic conditions, and other complex pain syndromes. Using advanced interventional techniques - including targeted injections, nerve blocks, and minimally invasive therapies - we aim to restore function, reduce reliance on medications whenever possible, and improve overall quality of life.
Conveniently located in Saint Marys, with a temporary site in Sheffield, and plans for a permanent location in Warren, we make high-quality pain care accessible throughout the region. Every aspect of our care is patient-centered: we combine the latest medical advancements with genuine empathy to ensure each visit is safe, effective, and focused on your well-being.
Our team is made up of highly trained physicians, physician assistants, nurse practioners, and clinical staff who bring years of experience and a passion for helping patients regain comfort and mobility. We believe that understanding each patient’s story is just as important as the treatment itself, and we strive to create an environment where you feel heard, supported, and empowered throughout your care journey.
Meet Dr. Timothy Vollmer
Dr. Timothy Vollmer is a multidisciplinary pain management physician, and the owner and founder of the Pain, Spine & Joint Center of the Alleghenies. He is committed to enhancing the quality of life for his patients through innovative treatments and personalized care plans. Dr. Vollmer holds a Doctor of Osteopathy degree and has completed extensive training in pain medicine and anesthesiology. His dedication to patient care is evident in his approach to developing a comprehensive, multidisciplinary pain management program that addresses the unique needs of each individual.

Read More about Dr. Vollmer
Dr. Timothy Vollmer is a compassionate, community-focused physician dedicated to improving access to high-quality pain care and bringing the latest technological advances in pain medicine to the region he proudly serves. Born and residing in Saint Marys, Pennsylvania, Dr. Vollmer’s deep roots in the community continue to guide his mission and commitment to local patients.
His primary focus is delivering the highest level of care with the goals of reducing pain and improving patients’ functional abilities and overall quality of life. He is committed to developing and expanding a comprehensive, multidisciplinary pain medicine program designed to provide patient-centered, individualized, and all-encompassing care for decades to come.
Dr. Vollmer’s medical journey began humbly, working summer breaks as a janitor and anesthesia technician at his local hospital during college. He graduated magna cum laude with a degree in Biochemistry from Allegheny College before earning his medical degree at LECOM-Erie, where he graduated in the top 7% of his class. He then completed his internship and residency in Anesthesiology at the University of Florida, training in a nationally ranked top-10 program.
During residency, Dr. Vollmer actively engaged in clinical research, publishing numerous peer-reviewed articles, presenting original research at national and international conferences, and co-authoring textbook chapters. He was recognized by his peers with the “Hardest Worker” and “Best Team Player” awards and served as Chief of Recruitment. He went on to complete a fellowship in Multidisciplinary Pain Medicine at the University of Florida.
Following his training, Dr. Vollmer returned home to fulfill his lifelong goal of establishing a practice that improves access to advanced pain care throughout central and northwestern Pennsylvania. He remains academically active through involvement in state and national professional organizations, including the Pennsylvania Pain Society, North American Neuromodulation Society, American Academy of Pain Medicine, and the American Society of Interventional Pain Physicians. He has a special interest in expanding comprehensive, multidisciplinary pain care in rural communities across Pennsylvania.
Outside of medicine, Dr. Vollmer enjoys spending time with his growing family, exploring the outdoors, fishing, experiencing the Pennsylvania wilds, and engaging in philanthropy and volunteer efforts throughout the north central Pennsylvania region.
Our Advanced Practice Providers

Tammy J. Weis
PA-C, MPAS; Chief Operating Officer
Tammy J. Weis brings a wealth of knowledge and expertise in pain management, with a focus on delivering compassionate and effective care to her patients. In addition to her clinical roles, she also serves as the practice's Chief of Operations.

Heather California, CRNP
Certified Registered Nurse Practitioner
Heather California is dedicated to providing comprehensive, patient-centered care, drawing on her extensive training in pain management to help improve outcomes and enhance quality of life.

Catherine Holsopple, PA-C, MPAS
Physician Assistant
Catherine Holsopple is committed to enhancing patient well-being by providing thoughtful, comprehensive care and applying her expertise in advanced pain management techniques to help improve comfort, function, and overall quality of life.

Jennifer Cappiello, PA-C, MPAS
Physician Assistant
Jennifer Cappiello embodies the essence of compassionate care focusing on each patient's unique journey toward pain relief and actively collaborates with patients to develop personalized treatment strategies.
Meet Our Dedicated Team

Emily Armagost
Practice Manager

Nena Herzing
Front Office Assistant

Carolyn Singer
Registered Nurse

Jean Kirst
Registered Nurse

Jessica Bloam
Licensed Practical Nurse

Kelly Martin
Licensed Practical Nurse

Nichole Sluga
RT(R), Site Director

Angela Wehler
RT(R)

Tabatha McKay
Certified Medical Assistant

Hillery Berggren
Certified Nursing Assistant

Cheyanne Spong
Clinical Scribe

Amy Hannon
Medical Office Assistant

Sara Bevevino
Medical Office Assistant
What Our Patients Say
"Dr. Vollmer is one of the best doctors I have been to for my pain.. Tammy Weis is also wonderful. If you need pain management I highly recommend this office. They are very thorough in diagnosing your problem and explaining what can be done to help you. Give their office a call today if you need help with your pain."
Susan W.
"I've been to Dr. Vollmer several times over the years for both neck and back pain. He and his staff have always taken the time to explain my options. I was twice referred to physical therapy first to be sure that any surgical options were absolutely necessary. I would highly recommend Dr. Tim and his associates - they are both professional and caring."
Mike B.
"I can’t say enough good things about everyone at this office!! From the kind consideration of Hillary returning my calls, answering my questions, holding the door, to Heather California for her knowledge and expertise, and to Dr. Vollmer for HEALING ME!! I was in such incredible pain, the worst I’ve ever experienced in my life and I was treated with such kindness and compassion. The staff is so skilled and really knew exactly what to do to help me get on my feet and back to work. I’m so appreciative and I can’t thank them enough. I HIGHLY recommend them to anyone. As someone new to the area and state of PA I was scared about receiving medical treatment and I felt very confident in the staff here!
Jennifer L.
"Dr.Vollmer & his staff are phenomenal! I've been dealing with knee issues for 3 years & it was my very first visit with him & I finally felt like someone cared. He & his staff are very compassionate, caring, & listened to all my concerns. I would recommend Dr.Vollmer to anyone needing relief from pain!"
Kathleen K.
"Extremely friendly and competent staff. Organized & compassionate. Dr Vollmer is phenomenal!! I strongly recommend him to everyone. Knowledgeable, great technical skills, caring and friendly."
Donna B.
Schedule Your Appointment Today
Ready to take the next step towards a pain-free life? Contact us now to schedule your appointment or to learn more about our personalized treatment plans. Our dedicated team at the Pain, Spine & Joint Center of the Alleghenies is here to help you every step of the way.
