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Dr. John Huffman, MD is a pain management physician practicing at Interventional Pain and Regenerative Medicine Specialists in Arlington, Virginia on the campus of the Virginia Hospital Center. He is certified by the American Board of Anesthesiology (1994 - present) with an additional Pain Medicine Certification (1996 - present). 

Dr. Huffman completed his anesthesiology residency and pain medicine training at George Washington University Hospital in Washington, DC. He was named chief resident during his final year of training, after which he remained on staff teaching as an assistant professor of anesthesiology and pain medicine until 1997.

Prior to joining Virginia Hospital Center, he served as the Medical Director of Pain Management at Holy Cross Hospital in Silver Spring, Maryland, for over 22 years. His responsibilities included managing a staff of more than 25 medical professionals.

Dr. Huffman has extensive experience in all areas of pain medicine and has a special interest in Intrathecal Drug Delivery and Spinal Cord Stimulation, both procedures are surgically implantable technologies for use in the treatment of chronic pain. He has taught and published extensively on interventional pain management techniques and treatment of chronic pain. He remains active in research and routinely maintains his continuing medical education.

Dr. Huffman strongly supports a multi-disciplinary approach to patients suffering from chronic pain and recognizes the unique and individual nature of each patient’s pain and tailors their treatment accordingly. He believes in honesty and trust as the foundation for the patient-physician relationship.

Outside of medicine, Dr. Huffman enjoys spending time with his dog Hope, exercising, cooking, design, and travel.

Dr. Kapteyn received his Doctor of Osteopathic Medicine from West Virginia School of Osteopathic Medicine in Lewisburg, WV, followed by a medical internship at Henry Ford Hospital in Detroit, Michigan. Dr. Kapteyn then pursued his residency at Georgetown University and the National Rehabilitation Hospital in Washington D.C. He further honed his expertise through fellowship training in interventional pain at the University of Wisconsin, Madison. Dr Kapteyn is board certified in Physical Medicine and Rehabilitation, pain medicine, and board eligible Hospice and Palliative care. A multidisciplinary, balanced approach to pain medicine is a hallmark of his care to bring improvement in function.
From 2009 to 2013, Dr. Kapteyn served as the Medical Director of Pain Medicine at Drake Hospital, a University of Cincinnati Hospital, where he served and at times led the medical executive committee and represented Drake on the drug planning and development committee. Kapteyn subsequently entered private practice with Orthopedic Associates Muskegon, where he worked until 2023. During his career, he also worked as a physician consultant with Hydrocision, and as the physician lead in the development of TenJet for minimally invasive tenotomies. Additionally, Dr. Kapteyn worked in hospice and palliative care with Harbor Hospice,and served as an independent director and science consultant on the board of NewAge Beverages from 2017-2020. NASDAQ ticker NBEV.
Dr. Kapteyn has gained recognition for his skills in minimally invasive ultrasound guided procedures, including carpal tunnel release and trigger finger releases, as well as TenJet for elbow tenotomy, hip, shoulder, and achilles tendon. In addition to spinal injections, Dr Kapteyn performs procedures such as basi-vertebral nerve ablation, interspinous vertiflex for spinal stenosis, spinal cord stimulation, peripheral nerve stimulation, kyphoplasty and radiofrequency ablation. He performs neurolytic blocks for sympathetic nerve pain, and he is also experienced with pain pumps, Botox treatments, including for migraine prophylaxis, prolotherapy, orthobiologics, for both chronic tendon and joint pain, and Biote for bio-identical hormone optimization. 

Dr. Kapteyn has numerous contributions to medical research. including NIH research on neurophysiological correlates in chronic stroke patients. He also served as a lead investigator for the PUGET study, which examined the outcomes of tenotomies for medial and lateral epicondylitis. He participated in CITRUS

study with SonexHealth, observing outcomes of ultrasound guided carpal tunnel release. Furthermore, he participated in research on a novel migraine prophylactic treatment for chronic migraine headaches with Healthy Extracts, publishing “A Unique medium chain triglyceride-containing micronutrient complex: Effects on chronic migraine headache”. World Journal of Advanced Research. Dr. Kapteyn’s expertise and compassionate approach to care gained him a reputation of being a “physician’s physician,” as other physicians in the field often consult him for medical advice, guidance and treatment.
Outside the office

A Grand Rapids, MI native, Dr. Kapteyn loves the warm weather and vibrant culture of the nations capital, Washington, DC, and is excited to return. He enjoys ballroom dancing, performing vocally, performing recently with the Williamsburg Symphony, he enjoys both HIIT and tabata exercising, golfing, cooking, gardening and hiking and mountain biking. He has three college-aged daughters and was married to Nancy Kapteyn for 25 years until she passed away from breast cancer. In her memory, Dr. Kapteyn encourages contributions to the National Breast Cancer Foundation.

Stephanie Clop, MD, is a board-certified physiatrist focusing on physical medicine and rehabilitation at Integrated Spine and Pain Services in Falls Church and Alexandria, Virginia. Dr. Clop dedicates her practice to state-of-the-art treatments of acute and chronic pain.

Dr. Clop graduated cum laude with a Bachelor of Science in Physical Education and Exercise Physiology and a minor in biology and chemistry at Virginia Polytechnic Institute and State University in Blacksburg, Virginia. She completed her Doctor of Medicine at Eastern Virginia Medical School in Norfolk, Virginia.

She completed a physical medicine and rehabilitation residency and an internship in trauma surgery, neurosurgery, orthopedics, internal medicine, and geriatrics at the University of Texas Health Science Center in San Antonio, Texas.

Dr. Clop finished another physical medicine and rehabilitation residency at San Juan Veterans Medical Center in San Juan, Puerto Rico. She then worked as an emergency room physician at Southwest Medical Associates in Rockport, Texas.

Dr. Clop was a physiatrist at several practices, including Physical Therapy Center in Las Piedras, Puerto Rico, Ashtar Physical Therapy Center in Vega Alta, Puerto Rico, and Matilde Brenes Hospital in Bayamon, Puerto Rico.

She worked at Reston Surgical Center in Reston, Virginia, and currently has consulting privileges at Reston Hospital. After practicing as a physiatrist at Town Center Orthopedics in Reston, Virginia, Dr. Clop joined National Spine & Pain Centers in Aldie, Virginia.

She was honored as a NorthernVirginia top doctor, a Washingtonian best doctor from 2012 to 2017, and received a Patient's Choice Award. Dr. Clop is a diplomat of the American Board of Physical Medicine and Rehabilitation, and a member of the American Academy of Physical Medicine and Rehabilitation and the American Academy of Pain Medicine.

Dr. Clop holds her medical licensure in Virginia and is fluent in Spanish and English.

As an integral member of the Orthopedic & Wellness team, Matthew Roh, MD, is proud to provide the very best in pain management and PM&R to patients at the Frederick, Waldorf, and Germantown, Maryland clinics.

Board-certified in Pain Management and in Physical Medicine and Rehabilitation, Dr. Roh received his medical degree from Drexel University in Philadelphia. Across the city’s river, he went on to study internal medicine with an internship at Hahnemann University Hospital.

Dr. Roh then attended one of the nation’s leading physical medicine and rehabilitation programs at Baylor College of Medicine in Houston, where he completed his residency. While there, he studied extensively at the Institute for Rehabilitation and Research.

Embodying the philosophy and mission of Orthopedic & Wellness, Dr. Roh treats every patient with compassion. Dr. Roh is especially interested in musculoskeletal rehabilitation and pain management. He also is passionate about regenerative medicine, sports medicine, hormone replacement therapy, peripheral joint injections, and interventional spinal medicine.

In his spare time, he enjoys lifting weights and playing blues and rock on his electric guitar.

At United Spine and Joint Center, the team focuses on collaborative treatment options for patients suffering from back, neck, and musculoskeletal pain. Servicing Leesburg and Lansdowne, VA. patients receive an expert evaluation, education, and treatment for a full spectrum of spinal disorders.

Jon Mader, MD is the board-certified Medical Director of United Spine and Joint Center, where he provides treatments backed by the latest research supporting spine care and non-opioid options. Dr. Mader attended the University of Wisconsin where he earned a Bachelor’s degree in Biology and Psychology. He went on to earn his Medical Doctorate at St. George’s University School of Medicine.

This was followed by a prestigious residency at Tufts Medical Center in Physical Medicine and Rehabilitation. As his interest in spinal treatments deepened, Dr. Mader pursued a fellowship in interventional spinal rehabilitation at the New England Baptist Hospital, part of the renowned Harvard University Care Group. While in his fellowship, he participated in several research projects and obtained extensive training in advanced and minimally invasive spinal disorder treatments.

As a patient at United Spine and Joint Center, you can expect an evidence-based approach to non-surgical and non-opiate treatments of various spinal disorders. After a thorough evaluation with Dr. Mader, you will become educated about the problem, diagnosis, and treatment options available to you. Dr. Mader will help you make an informed decision about your care that reflects your needs and goals.

As an Interventional Pain Management and Physical Medicine and Rehabilitation Specialist, Dr. Mader has the advanced training and extensive knowledge to provide non-surgical and non-opiate treatment methods for numerous spinal disorders.