Neuropathy Expert Witnesses

Neuropathy expert witnesses and consultants listed here may be able to form expert opinions, draft expert witness reports, provide expert witness testimony at deposition and/or trial as or serve as consulting (non-testifying) experts on neuropathy. The neuropathy expert witness listings on this page are typically from fields/areas of expertise such as: Accident Reconstruction, Anesthesiology, Biomedical Engineering, Brain Injury Medicine, Clinical Neurophysiology, Diabetes, Electrodiagnostic Medicine, Endocrinology, Life Care Planning, Neurology, Neurophysiology, Pain Management - Medicine, Physical Medicine & Rehab, Podiatry, and Psychiatry.

Peter-Brian Andersson, MD, PhD Neurology Consulting, Inc.

Tarzana, California
Neurology, Electrodiagnostic Medicine - Neuromuscular disease, Multiple Sclerosis, Seizures, Epilepsy, EMG & EEG, Head injury, Spine disease, Neuropathy, Nerve injury, Headache, Myopathy
Neurology residency & Chief Resident UCSF. Fellowship Multiple Sclerosis & Neuroimmunology UCSF. Fellowship Neuromuscular disease and Electrodiagnostic Medicine Stanford. Rhodes Scholar. Alpha Omega Alpha Honor Society. Clinical Associate Professor of Neurology, UCLA. Southern California SuperDoctors 2010-2023. Medical Director for California Stratus Alliance Neurodiagnostics. Principal Investigator/Sub-Investigator National Research Institute Trials.

Shawn Zardouz, MD Expedient Medicolegal Services

Newport Beach, California
Neurology, Pain Management - Medicine - Traumatic Brain Injury, Migraine Headaches, Peripheral Nerve Damage, Neuropathy, Seizures, Epilepsy, Dementia, Parkinson's, Multiple Sclerosis, Alzheimer's, Palliative Care, Standard of Care, Whiplash, Concussion, Chronic Pain, Head Trauma, Vertigo, Stroke, Spinal cord injury, Brain Tumor
Dr. Shawn Zardouz is double board certified in Pain Medicine and Neurology. He began his studies at Johns Hopkins University where he graduated with a Bachelor of Arts in public health. He earned his medical degree from Wayne State University in Detroit, Michigan and graduated with a distinction in biomedical research. Dr. Zardouz completed his medicine internship at Loma Linda University Medical Center where he was named intern of the year. He then went on to complete his neurology residency at University of California San Diego (UCSD) and stayed an additional year to complete his pain medicine fellowship at UCSD. Dr. Zardouz has been published in many peer reviewed journals and has presented his findings at several conferences at the national and international levels.

Michelle M. Boudreau, DO

Glastonbury, Connecticut
Neurology, Clinical Neurophysiology - Outpatient, Inpatient, Neurohospitalist, Concussion, Traumatic Brain Injury (TBI), Neurophysiology, Stroke, EEG, EMG, Multiple Sclerosis (MS), Headaches, Migraine, Neuropathy, Tremor, Seizures, Spinal injuries, Back Injuries, Neck injuries, Thoracic outlet syndrome, Epilepsy, CO poisoning, Parkinson
Board Certified Neurologist in active clinical practice. Fellowship trained in Clinical Neurophysiology. Experience in both an outpatient and inpatient setting. Former Chief of Neurology at Hartford Healthcare/Windham Hospital. Completed multiple SEAK Expert Witness Training Courses. Experienced file reviewer and medical legal examiner.

Adam S. DiDio, M.D.

SAINT PETERSBURG, Florida
Brain Injury Medicine, Clinical Neurophysiology - Concussion, Postconcussion Syndrome, Mild Traumatic Brain Injury (mTBI), Closed head injury, Cognitive impairment, Neurocognitive testing, Neuropsychological review, MRI interpretation, Videonystagmogram (VNG), Neuropathy, Nerve Conductions & Electromyography (NCV/EMG), Radiculopathy, Nerve injury
I am a practicing neurologist, sub-specializing in Concussion/mild Traumatic Brain Injury (mTBI) and Neurophysiology/Neuromuscular diseases. I earned my medical degree (M.D.) at the SUNY Upstate Medical Center in Syracuse, New York, and then went on to complete my residency in Neurology at the Mount Sinai Medical Center in New York City. During residency, I was elected to serve as Chief Resident. Following residency, I completed a fellowship in Neurophysiology and Neuromuscular diseases, also at the Mount Sinai Medical Center in New York City. I began private practice in 2006, in St. Petersburg, Florida. In addition to my private practice and multiple hospital affiliations, I served a two-year stint as the Chief of Medicine at the Bayfront Medical Center, a major level 2 Trauma center. I was the co-director of a multidisciplinary Amyotrophic Lateral Sclerosis (ALS) clinic from 2007 – 2013. Starting in September 2009, I was elected to be the Southeast Examining Neurologist for th...

Eli Loch, D.O.

Jacksonville, Florida
Pain Management - Medicine, Anesthesiology - Interventional, injection, epidural, facet, radiofrequency ablation, rhizotomy, neck, back, cervical, lumbar, sciatica, radiculopathy, neuropathy, pain, spinal cord stimulation, nerve injury, herniated disc, joint, knee, shoulder, hip, orthopedic, opioid, musculoskeletal, stimulation, stem cell, PRP
Dr. Loch started his medical education at the Lake Erie College of Osteopathic Medicine. After graduating medical school, he completed a highly competitive residency in anesthesiology at the University of Florida in Gainesville. While there, he developed a passion for treating patients with complex spine, joint, and nerve pathology. Staying at the University of Florida, he was selected for an elite fellowship in interventional pain management to train with nationally recognized leaders in the field. Dr. Loch is board certified in both anesthesiology and interventional pain management by the American Board of Anesthesiology. He is very experienced in image guided interventional procedures, having personally performed over 10,000 spine, joint, and nerve injections. He is active at Baptist Hospital Nassau, being both a consulting physician and member of the credentialing committee. Dr. Loch has also been involved with numerous professional societies including the American Society of I...

David S Silvers, MD Gardens Neurology

Palm Beach Gardens, Florida
Neurology - Expert Witness, Neurology, General Neurology, Neuromuscular Medicine,Falls,Electromyography, Neuropathy, Neuropathic pain,Movement Disorders, Parkinson Disease, Traumatic brain injury, Concussion,Headache, Migraine, Dizziness, Gait Disorders, Mild cognitive impairment, Dementia, Alzheimer's disease
Specialty interests: General neurology, Neuromuscular Medicine/Electromyography (EMG), Neuropathy, Movement Disorders, Parkinson disease, Mild cognitive impairment, Dementia, Alzheimer's disease, Falls, Head trauma, Concussion, Sleep medicine, Eye movement disorders, Dizziness/vertigo. Boarded in Neurology, Electrodiagnostic Medicine and a Diplomate in Neuromuscular Medicine (all boards are up-to-date with maintenance of certification). Received the teaching award twice by the residents at the University of Connecticut University School of Medicine (2001,2007). Top Doctors list 2011-present. Recognized as an FAAN (Fellow of the American Academy of Neurology, August 2018. Voluntary faculty, Clinical Assistant Professor at the University of Miami (2015-present). Clinical Affiliate Associate Professor, Charles E. Schmidt College of Medicine at Florida Atlantic University, January 2018-present Published several case reports in respected journals on cases involving movement d...

Yelena Vidgop, MD Integrative Neurology Inc

Weston, Florida
Neurology, Neurophysiology - Telemedicine, Inpatient, Outpatient, Stroke, Headaches, Migraines, Neuropathy, CIDP, Multiple Sclerosis, Myasthenia Gravis, Encephalopathy, Movement Disorders, Tremors, Parkinson's, Back and Neck injuries, Radiculopathy, Epilepsy, Dementia
Dr. Vidgop is a highly distinguished Physician, Board Certified in Neurology and fellowship trained in Neurophysiology. She has over 15 years of experience in both inpatient and outpatient setting with seven years of practice in Telemedicine particularly Tele-Stroke. She has built an Integrative Headache Clinic where a multimodal approach was used and collaborated with other specialists and holistic providers to offer patients a comprehensive treatment plan. She serves as a Stroke Medical Director for Mercy One and in this role, she aids in the development of stroke related patient care policies and procedures, formal review of outlier cases and care rendered. She reviews clinical practice guidelines and process improvement activities within the program. She plans and assists with ongoing evaluation of Primary stroke center and helps prepare the hospital for DNV and JCAHO surveys. As a Regional Medical Director for multiple hospital systems across the country she collaborates with s...

Eli Loch, D.O.

Georgia
Pain Management - Medicine, Anesthesiology - Interventional, injection, epidural, facet, radiofrequency ablation, rhizotomy, neck, back, cervical, lumbar, sciatica, radiculopathy, neuropathy, pain, spinal cord stimulation, nerve injury, herniated disc, joint, knee, shoulder, hip, orthopedic, opioid, musculoskeletal, stimulation, stem cell, PRP
Dr. Loch started his medical education at the Lake Erie College of Osteopathic Medicine. After graduating medical school, he completed a highly competitive residency in anesthesiology at the University of Florida in Gainesville. While there, he developed a passion for treating patients with complex spine, joint, and nerve pathology. Staying at the University of Florida, he was selected for an elite fellowship in interventional pain management to train with nationally recognized leaders in the field. Dr. Loch is board certified in both anesthesiology and interventional pain management by the American Board of Anesthesiology. He is very experienced in image guided interventional procedures, having personally performed over 10,000 spine, joint, and nerve injections. He is active at Baptist Hospital Nassau, being both a consulting physician and member of the credentialing committee. Dr. Loch has also been involved with numerous professional societies including the American Society of I...

Stanley J. Mathew, MD

Illinois
Physical Medicine & Rehab, Pain Management - Medicine - Chronic Pain Syndrome, Fibromyalgia, Migraines, Post Laminectomy Syndrome, Neuropathy, Gait and Balance dysfunction, TBI, Spinal Cord Injury, Stroke, Chronic Neck and low Back Pain, Osteoarthritis , Rotator Cuff, Nerve, Bone and Muscle Specialist
Stanley Mathew, MD, has been an Attending Physician at St Luke's Hospital since October 2009. Dr. Mathew also serves as Chief Executive Officer of American Rehabilitation Medicine , PLLC. He was previously a Chief Resident in the Department of Physical Medicine and Rehabilitation at New York Medical College. Dr. Mathew has extensive experience in the fields of Internal medicine, Physical medicine and rehabilitation, pain management and electrodiagnostic medicine. Dr. Mathew holds board certifications in Physical medicine and Rehabilitation, Pain Medicine, with the American Board of Disability Analysts

E. Andy Akan, MD Akan Neurological Experts

Dyer, Indiana
Neurology, Physical Medicine & Rehab - Traumatic brain injury, TBI, concussion, intracranial hemorrhage, Alzheimer's, dementia, stroke, TPA, spinal injury, radiculopathy, epilepsy, multiple sclerosis, migraine, headache, nursing home, acute rehabilitation, EMG, EEG, neuropathy, myopathy, meningitis, CNS tumors, subdural hematoma
I have served as an expert in forensic neurology in over 100 medical legal cases. Board certified neurologist practicing in the hospital and outpatient setting for over 18 years. I completed a full 3 year categorical internal medicine residency prior to my neurology residency. Previously served as medical director for one of three comprehensive stroke care programs in the state of Indiana. Currently serving as medical director of neurosciences and director of quality at a stroke and rehabilitation hospital. I am an associate professor of neurology at Indiana University School of Medicine. I have 3 years experience admitting patients into acute rehabilitation and have followed patients in skilled nursing and assisted living facilities. I currently read and interpret both EEG and EMG testing. I have a 14 year history as an expert physician speaker for multiple pharmaceutical companies. I have experience testifying in both depositions and jury trial. I am available to wo...

Neha Gavin, MD, MPH WHS

Lebanon , Indiana
Diabetes, Endocrinology - Hypoglycemia, hyperglycemia, thyroid, adrenal, insulin, insulin pump, pituitary, gestational DM, continuous glucose meter, type 1 diabetes, type 2 diabetes, thyroid cancer, neuropathy, testosterone, osteoporosis, Cushings, cortisol, growth hormone, Grave's disease, obesity, insulin resistance.
I have been doing expert witness work for approximately 11 years. To date, I have participated in over 40 cases and have been deposed twice in the last four years. I enjoy participating as an expert witness for numerous reasons but two reasons stand out to me. The first is that I enjoy teaching. I teach also as a member of a speaker bureau in another role where I educate other physicians about diabetes and diabetes treatment options. As an expert witness, I teach by carefully and clearly explaining to my audience, the nuances of certain disease states and standards of care in my field. The second reason I enjoy expert witness work is that I feel it makes me a better physician. Understanding the intricacies that lead to either positive or negatives outcomes in patient care, allows me to apply what I've learned to my own practice and strive for continual improvement. More about me: I was born and raised in Cleveland, Ohio. I completed my undergraduate studies at Tufts University ...

Stanley J. Mathew, MD

Cedar Rapids, Iowa
Physical Medicine & Rehab, Pain Management - Medicine - Chronic Pain Syndrome, Fibromyalgia, Migraines, Post Laminectomy Syndrome, Neuropathy, Gait and Balance dysfunction, TBI, Spinal Cord Injury, Stroke, Chronic Neck and low Back Pain, Osteoarthritis , Rotator Cuff, Nerve, Bone and Muscle Specialist
Stanley Mathew, MD, has been an Attending Physician at St Luke's Hospital since October 2009. Dr. Mathew also serves as Chief Executive Officer of American Rehabilitation Medicine , PLLC. He was previously a Chief Resident in the Department of Physical Medicine and Rehabilitation at New York Medical College. Dr. Mathew has extensive experience in the fields of Internal medicine, Physical medicine and rehabilitation, pain management and electrodiagnostic medicine. Dr. Mathew holds board certifications in Physical medicine and Rehabilitation, Pain Medicine, with the American Board of Disability Analysts

Lana Rigby, MD, FAAPMR Lana L Rigby, LLC

Mitchellville, Maryland
Physical Medicine & Rehab, Brain Injury Medicine - Traumatic Brain Injury, Brain Injury, mTBI, Concussion, Anoxic Brain Injury, Stroke, Neurological Rehabilitation, Medical Management, Gait and Balance Dysfunction, Neuropathy, Spinal Cord Injury
Lana Rigby, MD is board certified physician in both Physical Medicine and Rehabilitation and Brain Injury Medicine. She has extensive experience in stroke, traumatic and non-traumatic brain injury, intracranial hemorrhage, subarachnoid hemorrhage, subdural hematoma, spinal cord injury, encephalopathy, Hypoxic/ anoxic brain injury, neuromuscular disorders such as Guillain-Barré syndrome, complex medical rehabilitation, diagnosis and prognosis of disability, and rehabilitation planning. Dr. Rigby graduated from the University of Maryland at College Park with Honors in Neurobiology and Physiology. She then completed her medical degree at the University of Maryland School of Medicine. She further completed residency in Physical Medicine and Rehabilitation at Georgetown/ National Rehabilitation Hospital in Washington D.C. She currently evaluates and treats a variety of neurological and general rehabilitation patients in an acute hospital setting.

Mihail Zilbermint, MD, MBA, FACE Johns Hopkins Medicine

North Bethesda, Maryland
Endocrinology, Diabetes - Diabetes, type 2, type 1, foot, ulcer, amputation, nail, hyperglycemia, hypoglycemia, neuropathy, ketoacidosis, DKA, HHS, adrenal, pituitary, hormone, thyroid, obesity, delayed, diabetic, compounded, Ozempic, weight, loss, Covid, vaccine, thyroid, insulin, pump, CGM, TBI, growth, deficiency,
Dr. Mihail Zilbermint, M.D., M.B.A., F.A.C.E., is an Associate Professor of Clinical Medicine specializing in Endocrinology, Diabetes, and Metabolism at Johns Hopkins School of Medicine. He serves as the Chief and Director of the Division of Endocrinology, Diabetes, and Metabolism at Johns Hopkins Community Physicians Suburban Hospital in Bethesda, MD, and is the director of the Endocrine Hospitalist program. After completing his endocrinology fellowship at the National Institutes of Health, Dr. Zilbermint established an Endocrine Hospitalist and Inpatient Diabetes Management Service at Johns Hopkins Community Physicians. This program focuses on improving glycemic control for hospitalized patients. Dr. Zilbermint is a highly regarded expert in diabetes, adrenal, pituitary diseases, and general Endocrinology. In 2023, he was honored with the Vigersky Outstanding Clinical Practitioner award for his exceptional contributions to the endocrine and medical communities. He also received ...

David Haustein, MD, MBA, CLCP PM Consulting

Springfield, Missouri
Physical Medicine & Rehab, Life Care Planning - Neuromuscular Medicine, Electrodiagnosic Medicine, Neuropathy, Amputations, Musculoskeletal, Neurologic, Orthopedic, Rehabilitation, Physiatry, EMG, LCP, Medicolegal Review, IME, Chart Review, Radiculopathies, Spine, Amputee, Disability, Impairment, Expert Opinion
As a board-certified physician specializing in Physical Medicine and Rehabilitation, I care for patients requiring neurological, orthopedic, and musculoskeletal rehabilitation. I am also a certified life care planner and specialize in life care plan creation and review for individuals who have experienced serious injury or illness. I serve on many university and national committees and editorial boards and regularly present locally, regionally, and nationally. I serve as faculty with the University of Missouri-Columbia School of Medicine and am board-certified in PM&R with additional subspecialty certification in neuromuscular medicine.

Bradley E Layton, PhD PE Human Powered Future PLLC

Missoula, Montana
Accident Reconstruction, Biomedical Engineering - accidents, biomechanics, diabetes, dynamics, energy, engineering, failure, forensics, imaging, injury, materials, mechanics, nanotechnology, neurology, neuropathy, patents, personal injury, physics, proteins, slip trip & fall, soft tissue, solar, spine, statics, statistics, vehicle
American Concrete Institute Member ASME member IEEE-EMBS Editor Author - Molecular and Cellular Biomechanics Associate Teaching Professor - Drexel University Associate Professor - University of Montana Elite Athlete - United States Rowing Team 1995 & 1997 Fire Protection Engineer - US Department of Energy - Savannah River Site Founding Member - Insurance Engineering Blockchain Consortium International Code Council Member Inventor - AFM Nanomanipulation & Surgical Patents Lunar Scientist - US Department of Energy - Office of Space Machinist - Merlin Metalworks - titanium bicycle design & Stillwater - Kevlar boat design Oath of the Engineer - Engineer's equivalent of Hippocratic Oath National Society of Professional Engineers Post-doctoral Fellow - University of Michigan MRI laboratory Recipient - Montana Governor's Innovator Award Scientist - 100+ papers and abstracts

Jacob M Reinkraut, DPM, FACFAS Curalta.com

Ridgewood Village, New Jersey
Podiatry, Wound Care - Foot, Ankle, Toe, Leg, Nail, Foot ulcer, Foot Fracture, Ankle Fracture, Amputation, Diabetic Foot, Failed Surgery, Complication, Circulation, CRPS, RSD, Neuropathy, Slip and Fall, Bunion, Hammer Toe, Neuroma, Nerve Entrapment/ Injury, Foot Ulcer, Osteomyelitis, Leg ulcer, IME,
Board Certified Foot and Ankle Surgeon Residency Director Chief of Foot and Ankle Department of my hospital Past President of the NJ State of Podiatric Medical Society Legal Experience Professional Ethical Well spoken and easily understood Timely

Anthony Geraci, MD Neuro Medical Consulting

New York, New York
Neurology - Neuromuscular medicine, vascular neurology, electromyography, neuropathy, myopathy, traumatic brain injury
Experienced, detail oriented clinical neurologist. In active practice with tele-neurology experience. You can expect expert opinions rooted in evidence based medicine, published practice guidelines and clinical experience.

Aarti Singla, MD, MBA, CIME

Cincinnati, Ohio
Physical Medicine & Rehab, Pain Management - Medicine - Life Care Planning, Medical Cost projections, Catastrophic injuries, Non-catastrophic injuries, Rehabilitation, Spine injury, Back Pain, Sciatica, Nerve blocks, Radiculopathy, Spondylosis, Spinal Stenosis, Chronic Pain, Neuropathy, non-surgical orthopedic care, herniated discs
Dr. Singla is a dual Board-Certified Johns Hopkins Trained Physiatrist (ABPMR) specializing in interventional pain management, non-surgical orthopedic care, and chronic pain management. She is Board-Certified in Physical Medicine & Rehabilitation, Pain Medicine (AAPMR) , Certified Independent Medical Examiner (ABIME) and a Certified Life care Planner. She is a Fellow of the American Academy of Physical Medicine & Rehabilitation and completed an ACGME- Accredited Fellowship in Pain Medicine. Additional Certifications include: Independent Medical Exams, Life Care Plans, Medical cost projections. She holds active licenses in Ohio and Kentucky. 10+ years in practice in multiple settings including: outpatient private practice and inpatient hospital practice. Areas of expertise include: Spine injury, Back Pain, Sciatica, Nerve blocks, Radiculopathy, Spondylosis, Spinal Stenosis, Chronic Pain, Neuropathy, Non-surgical orthopedic care, Life Care Plans, Medical cost projections.

Jonathan J Halford, MD Medical University of South Carolina

Mount Pleasant, South Carolina
Neurology, Psychiatry - seizure, epilepsy, EEG, neurophysiology, sleep medicine, general neurology, headache, neuropathy, encephalopathy, psychiatry, head trauma, memory disorders, stroke
Professor of Neurology, Psychiatry, and Behavioral Sciences at the Medical University of South Carolina. Staff Neurologist at Ralph H. Johnson Veterans Medical Center. Board certified in Neurology, Psychiatry, Epilepsy, Sleep Medicine, and Clinical Neurophysiology. Practiced general neurology, epilepsy subspecialty, and clinical neurophysiology clinical care since 2003. Multiple publications in neurology, epilepsy, EEG and sleep medicine.

Steven M Croft, MD

Houston, Texas
Neurology - Epilepsy, Traumatic Brain Injury, Concussion, Stroke, Epilepsy, Radiculopathy, Neuropathy, Nerve Injury, Dementia, Alzheimer's, Vagus Nerve Stimulation, Parkinson's, Occupational Injuries, Electrical Injuries, Independent Medical Exams, Intellectual Developmental Disabilities (adults).
I'm a board certified Neurologist. I'm in full-time solo private practice. I work with Plaintiff and Defense attorneys on a wide range of cases including: Auto Accidents, Occupational Injuries, Falls, Electrocution and a variety of Neurological Diseases. I'm often asked to address: Causation, Standard of Care, and Extent of Injury. I'm experienced in deposition as well as trial testimony. I've served in leadership positions in my state and local medical society. I am a officer for the Texas Chapter of the Association of Physicians and Surgeons. I've served as Medical Director for the Gulf Coast Chapter of the Epilepsy Foundation and Advisory Board Member of the Houston Area Parkinson's Society. I also serve on the Medical Advisory Board for Driver Licensing for Texas. I've been an advocate for patients having testified in front of Texas Senate Committees and participating in the American Academy of Neurology's day at the Capitol in Washington, D.C.. In my spare time, I enjoy spend...

Scott A Heller, MD

San Antonio, Texas
Neurology, Neurophysiology - stroke,meningitis,encephalitis,radiculopathy,spine disease,vertigo,myasthenia gravis,brain hemorrhage,TBI,neuropathy,brachial plexus,epilepsy,seizures,anoxic brain injury,Guillain-Barre syndrome,CIDP,myopathy,muscular dystrophy,encephalopathy,headaches,Charcot-Marie-Tooth,ALS,motor neuron disease
Dr. Heller is a double board-certified neurologist, with ABPN board certifications in both neurology and neuromuscular medicine. He is also fellowship-trained in clinical neurophysiology, with expertise in both EEG and EMG. He has extensive experience in a wide variety of practice settings, including active duty military, private practice, and academics. He treats conditions that span the complete spectrum of neurology, and currently serves a full-time clinical role as a neurohospitalist.

Ramesh Singa, MD HealthAdvise

Austin, Texas
Anesthesiology, Pain Management - Medicine - Interventional pain management, intrathecal targeted drug delivery, pump, injection, epidural, facet, radiofrequency ablation, rhizotomy, neck, back, cervical, thoracic, lumbar, sciatica, radiculopathy, neuropathy, spinal cord stimulation, nerve injury, herniated disc, degeneration, osteoarthritis
Ramesh Singa, MD, is a pain management physician board certified in Pain Management and Anesthesiology. He is part of the Republic Spine and Pain team in Leander and Austin, TX. With over 15yrs experience, Dr. Singa’s top areas of expertise are Invertebral Disc Disease, Sacroiliac Joint Disease, Cervical Spondylosis, and Complex Regional Pain Syndrome. Training Medical Rusha Medical College Residency St. Barnabas Health Care System Fellowship Rush University Medical Center Board Certifications American Board of Anesthesiology American Board of Anesthesiology Pain Medicine