The Medical Opinion Marketplace

Dr. John Shine, DPM, is a podiatrist specializing in comprehensive foot and ankle care, with advanced training in both surgical and non-surgical management of complex lower extremity conditions. He is board certified as a Diplomate of the American Board of Foot and Ankle Surgery and the American Board of Podiatric Medicine, and is a Fellow of the American College of Foot and Ankle Surgeons. Dr. Shine earned his Doctor of Podiatric Medicine degree from the New York College of Podiatric Medicine after completing a B.S. in Biochemistry at the New York Institute of Technology. He completed a three-year foot and ankle surgical residency at Western Pennsylvania Hospital, a Temple University School of Medicine clinical campus, and pursued additional subspecialty training through a foot and ankle surgery and research fellowship at the Weil Foot & Ankle Institute. In addition to patient care, Dr. Shine has contributed to the medical literature as a contributing author to textbook chapters in foot and ankle surgery. He is affiliated with St. David's South Austin Medical Center and is an active member of the American Podiatric Medical Association and the Texas Podiatric Medical Association. He has been recognized by the Texas Podiatric Medical Association as Young Practitioner of the Year.

Shiree Flume, MD, is a Texas-licensed physician specializing in neurology with additional listing in major physician directories under psychiatry. She provides comprehensive evaluation and management for conditions affecting the brain, nervous system, and mental health, with an emphasis on thoughtful diagnosis and individualized treatment planning. Dr. Flume received her medical degree from the University of Texas Southwestern Medical Center and completed residency training at the University of California, San Francisco (UCSF) / Moffitt Hospital. She is reported to be board certified by the American Board of Psychiatry and Neurology, reflecting broad expertise across neurologic and psychiatric care. In addition to outpatient practice, Dr. Flume is affiliated with Ascension Seton Shoal Creek Hospital. She has also been recognized as a Texas Super Doctors honoree, reflecting peer acknowledgment of her clinical contributions. Patients and colleagues value her for a careful, evidence-based approach, clear communication, and attention to the whole person when addressing complex neurologic and behavioral health concerns.

Sinikka L. Green, MD, is an emergency medicine physician with extensive experience caring for patients across the full spectrum of urgent and life-threatening conditions. She earned her medical degree from Emory University School of Medicine and is board certified in Emergency Medicine. Dr. Green’s practice is grounded in rapid assessment, decisive clinical management, and clear communication with patients and families during high-stress situations. In the emergency department, she focuses on timely diagnosis and stabilization, coordination with consultants and inpatient teams, and evidence-based treatment for medical, surgical, and traumatic emergencies. She is committed to patient safety, teamwork, and compassionate care, with attention to ensuring patients understand their evaluation, treatment plan, and follow-up needs. Dr. Green is licensed to practice in Texas and Florida. She has also been publicly listed with professional practice locations in both Texas and California. Her work reflects a dedication to delivering high-quality emergency care and supporting patients through critical moments with professionalism and empathy.

John R. Gould, PhD, is a Texas-licensed clinical psychologist based in Austin who specializes in psychological testing and comprehensive evaluations for children, adolescents, and adults. With extensive experience in assessment across outpatient and treatment settings, Dr. Gould provides clear, evidence-based answers to diagnostic and functional questions, helping individuals, families, and referring professionals better understand strengths, challenges, and appropriate next steps. His evaluation work commonly addresses concerns such as attention and executive functioning difficulties, autism spectrum and learning disorders, intellectual functioning, personality assessment, trauma-related symptoms, psychosis, and documentation for academic or standardized testing accommodations. Dr. Gould is also experienced in integrating multiple sources of information, including clinical interviews, standardized measures, and background records, to produce thorough and practical recommendations. Dr. Gould earned his doctorate in clinical psychology from The University of Texas at Austin after completing a master’s degree in clinical psychology at Trinity University and a bachelor’s degree in psychology and sociology at Austin College. In addition to clinical practice, he has provided training and supervision to psychology trainees, including practicum students, interns, and postdoctoral fellows. He is credentialed with the National Register of Health Service Psychologists.

Michael C. Martin, MD, is a board-certified internal medicine physician serving adults in the Austin, Texas area. He focuses on comprehensive primary care, emphasizing prevention, early detection, and the thoughtful management of both acute concerns and chronic medical conditions. Dr. Martin partners with patients to develop personalized care plans that reflect each individual’s health goals, lifestyle, and medical history, with attention to clear communication and shared decision-making. In his practice, Dr. Martin commonly helps patients navigate complex health needs over time, coordinating care across specialties when appropriate and ensuring continuity through regular follow-up. He is committed to evidence-based medicine and practical, patient-centered guidance—whether addressing routine wellness, medication management, or ongoing conditions that require long-term monitoring. Dr. Martin earned his medical degree from the University of Texas Medical School at Houston. He has been listed in regional provider directories, including as associated with The Austin Diagnostic Clinic PA, reflecting experience caring for patients within established clinical settings.

Dr. William M. Lawson is a Texas-licensed chiropractor based in Austin. He provides conservative, non-surgical care for patients seeking evaluation and management of spine and musculoskeletal concerns, with an emphasis on restoring mobility, improving function, and supporting long-term wellness through chiropractic services. Dr. Lawson is affiliated publicly with Lawson Chiropractic and is the sole proprietor of his practice, where he helps guide patient care within a multi-doctor clinic setting. His approach centers on individualized assessment and evidence-informed, hands-on care tailored to each patient’s needs and goals. In addition to clinical practice, Dr. Lawson has been involved in professional advocacy and has been listed in public legislative witness materials in association with the Texas Chiropractic Association. Patients appreciate a straightforward, patient-focused experience that prioritizes education, clear communication, and conservative options aimed at helping people return to daily activities with greater comfort and confidence.

Darryl B. Thomas, MD, is a sports medicine physician specializing in orthopaedic surgery. He is board certified by the American Board of Orthopaedic Surgery in Orthopaedic Surgery and holds subspecialty certification in Orthopaedic Sports Medicine. Dr. Thomas earned his medical degree from the Johns Hopkins University School of Medicine and completed internship and residency training at Johns Hopkins, followed by a sports medicine fellowship at Keller Army Community Hospital. Dr. Thomas cares for athletes and active individuals with a focus on both surgical and non-surgical solutions to restore function and relieve pain. His clinical interests include joint preservation and reconstruction, cartilage restoration, and robotic-assisted knee replacement. He also incorporates advanced orthobiologic therapies such as platelet-rich plasma and bone marrow aspirate concentrate injections when appropriate. He has served in leadership as chief of a sports medicine department and has extensive experience as a team physician for local semi-professional, university, and high school programs. A former Division I NCAA athlete, Dr. Thomas brings a practical understanding of performance goals and return-to-sport decision-making. He is affiliated with Ascension Seton Medical Center Austin, Ascension Seton Northwest, and Dell Seton Medical Center at The University of Texas.

Amy E. Walton, MD, is a board-certified psychiatrist who provides comprehensive psychiatric evaluation and medication management for adults. She practices in Austin, Texas, through Amy Walton MD PLLC and offers both in-person and telemedicine visits. Dr. Walton earned her medical degree from the University of Texas Health Science Center at Houston and completed psychiatry residency training at Washington University in St. Louis/Barnes-Jewish Hospital. Her clinical interests include mood and anxiety disorders such as depression, bipolar disorder, and anxiety, as well as obsessive-compulsive disorder, trauma and PTSD, insomnia and other sleep concerns, psychotic disorders, and women’s mental health, including pregnancy and postpartum-related concerns. She is known for a thoughtful, patient-centered approach that integrates careful diagnostic assessment with evidence-based treatment planning. Dr. Walton is a Fellow of the American Psychiatric Association and a member of the Austin Psychiatric Society. She also serves as Behavioral Health Medical Director at Superior Health Plan and is a Clinical Assistant Professor of Psychiatry at Dell Medical School. Her scholarly work includes peer-reviewed publications on topics in psychopharmacology and addiction-related care.

Walter P. Werchan, MD, is a physician in Austin, Texas, with clinical training spanning internal medicine and neurology. He is board certified in Neurology by the American Board of Psychiatry and Neurology and provides comprehensive neurologic evaluation and care tailored to each patient’s needs. Dr. Werchan earned his medical degree from the University of Texas Medical Branch at Galveston. He completed residency training through the UT Southwestern Austin Programs and went on to pursue fellowship training at UT Austin Dell Medical School. He is affiliated with Dell Seton Medical Center at The University of Texas. Dr. Werchan is known for a thoughtful, evidence-based approach that emphasizes careful listening, clear communication, and shared decision-making. He works with patients to develop practical treatment plans that align with their goals and support long-term neurologic health. He provides care in English. Patients may also see a public listing of his primary specialty under Psychiatry & Neurology with a focus in Neurology. A practice notice has indicated that he will be transitioning to a different clinic, with guidance to be provided for continuity of care.

Sara G. Austin, MD, is a neurologist specializing in the evaluation and treatment of disorders of the nervous system, with advanced expertise in neuromuscular conditions. She is board certified by the American Board of Psychiatry and Neurology in Neurology and in Neuromuscular Medicine, reflecting a commitment to comprehensive, evidence-based care for patients with complex nerve and muscle disorders. Dr. Austin completed her medical education at the University of Texas Medical Branch at Galveston and pursued fellowship training at the University of Texas Health Science Center at Houston. She is fellowship trained and board certified in electromyography (EMG) testing, an important diagnostic tool used to assess nerve and muscle function and to help guide individualized treatment plans. She is affiliated with Ascension Seton Medical Center Austin, Dell Seton Medical Center at The University of Texas, Ascension Seton Northwest, Ascension Seton Williamson, and Ascension Seton Hays. In addition to her clinical work, Dr. Austin has contributed to the neurology community through professional society leadership, including service roles with the Texas Neurological Society.