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Our Doctors

Our Doctors
You can get a Second Opinions expert service in numerous fields, including bariatric, cardiothoracic, ENT, neurosurgery, obstetrics & gynecology, ophthalmology, plastic surgery, urology, vascular surgery, and a wide range of surgical procedures, and more.

Adam James Ball MD

Subspecialization
Urology

Dr. Adam Ball is a distinguished urologist with extensive training and expertise. He completed his fellowship at Eastern Virginia Medical School & Devine-Tidewater Urology, following a urology residency and surgical internship at the University of Miami School of Medicine/Jackson Memorial Hospital. Dr. Ball earned his M.D. and B.S. from the University of Miami. He is a Diplomate of the American Board of Urology. Dr. Ball’s professional interests include medical/utilization review, independent medical consulting, and teleconsultation. His accolades include being named a “Top Doctor” by Castle Connolly and “Best Doctors – Urologist” by US News and World Report. He is an active member of the American College of Surgeons, American Urological Association, and other professional societies.

Jocelyn Lai Tan MD

Subspecialization
Medical Oncology

Dr. Jocelyn Tan, M.D., FACP, is a highly esteemed hematologist and oncologist. She earned her
Doctor of Medicine from the University of the East Ramon Magsaysay Memorial Medical Center
in the Philippines. She completed her residency in Internal Medicine at Nassau County Medical
Center and Montefiore Medical Center, followed by fellowships in Medical Oncology at
Montefiore Medical Center and Hematology/Medical Oncology at the University of Nebraska
Medical Center.
Dr. Tan has held numerous prestigious positions, including staff oncologist roles at various
hospitals and clinical professor appointments at Creighton University and the University of
Pittsburgh. Her research interests focus on innovative cancer treatments, including the
ketogenic diet’s role in cancer therapy. She is a fellow of the American College of Physicians
and an active member of the American Society of Clinical Oncology and the American
Association for Cancer Research. Dr. Tan is also fluent in English and Tagalog and
conversational in medical Spani

Shruti Pandita MD

Subspecialization
Oncology

Dr. Shruti Pandita, M.D., is a highly skilled medical oncologist with a robust background in
clinical research and oncology care. She earned her M.D. from the American University of the
Caribbean School of Medicine and completed her Internal Medicine Residency at the University
of Oklahoma at Tulsa School of Medicine. Dr. Pandita further specialized with a Medical
Oncology Fellowship at the University of Toledo Medical Center.
Her professional journey includes serving as an Assistant Professor of Medicine at UT Health
San Antonio MD Anderson Cancer Center and as the Gastrointestinal Oncology Leader at SSM
Health Saint Louis University. Dr. Pandita’s clinical interests encompass gastrointestinal
oncology, precision medicine, and innovative cancer treatment strategies. She is an active
member of the American College of Chest Physicians and has contributed to numerous clinical
trials and research publications in oncology. Dr. Pandita’s expertise and dedication make her a
valuable asset in the field of oncology.

Benjamin Jacob George MD

Subspecialization
Hematology and Oncology

Dr. Benjamin Jacob George earned his Bachelor of Arts in Liberal Studies from the University of
Delaware in 1998 and his Doctorate of Medicine from Jefferson Medical College in 2002. He
completed his internship and residency in Internal Medicine at Brooke Army Medical Center,
followed by a fellowship in Hematology/Oncology at the same institution. Dr. George also holds
an MBA in Healthcare Administration from the University of Massachusetts. His professional
interests include clinical and translational research, medical oncology, and healthcare
administration. He is a member of several professional societies, including the American
Medical Association, the American College of Physicians, the American Society of Clinical
Oncology, the American Society of Hematology, and the American Society of Physician
Executives.

Jeffrey Allerton MD

Subspecialization
Hematology and Oncology,

Dr. Jeffrey Allerton received his undergraduate degree in Biology and Chemistry from The
College of Saint Rose. He earned his medical degree from Tufts University School of Medicine.
Dr. Allerton completed his residency in Internal Medicine at Saint Elizabeth’s Hospital in Boston,
followed by a fellowship in Hematology/Oncology at the same institution. He further specialized
in Medical Oncology with a fellowship at Harvard Medical School’s Dana-Farber Cancer
Institute. Dr. Allerton is a Fellow of the American College of Physicians (FACP) and a member of
several professional organizations including the American Society of Clinical Oncology (ASCO)
and the American Society of Hematology (ASH). His interests include hospice and palliative
medicine, medical education, and clinical trials in oncology.

Petra J Thomas MD

Subspecialization
Pulmonology

Dr. Petra J. Thomas, M.D., is a distinguished pulmonologist with extensive experience in
pulmonary and critical care medicine. She earned her B.A. from Brown University and her M.D.
from Temple University School of Medicine. Dr. Thomas completed her internship at Howard
University Hospital, followed by a residency in Internal Medicine at Washington Hospital Center,
and a fellowship in Pulmonary/Critical Care at George Washington University.
Board-certified in Pulmonary Diseases and Internal Medicine, Dr. Thomas has held various
roles, including as a solo practitioner at Nova Pulmonary Care and a pulmonary consultant for
the Department of Labor’s Black Lung Division. Her interests include ICU care, telemedicine,
and both inpatient and outpatient pulmonology. Dr. Thomas is an active member of the
American College of Chest Physicians and has a strong background in teaching and hospital
administration.

Vikram Kumar Garg MD

Subspecialization
Rheumatology

Dr. Vikram Garg, MD, is a distinguished rheumatologist known for his extensive expertise and
contributions to healthcare. He earned his Doctorate of Medicine from SUNY Upstate Medical
University, followed by an Internal Medicine residency at Scripps Clinic/Green Hospital and a
fellowship in Rheumatology at UCLA. Dr. Garg is board-certified in both Internal Medicine and
Rheumatology, with additional certification in MSK Ultrasound.
His career spans pivotal roles, including as a physician speaker and peer reviewer for various
medical entities. Dr. Garg has been actively involved in research, notably exploring
musculoskeletal ultrasound protocols and the impact of obesity on Rheumatoid Arthritis. He is a
member of prestigious medical societies such as the American College of Rheumatology and
has presented his findings at numerous conferences. Dr. Garg’s commitment extends beyond
clinical practice to include mentoring fellows and contributing to medical education initiatives.

David Tyler Greenfield MD

Subspecialization
Cardio-Thoracic Surgery

Dr. D. Tyler Greenfield, M.D., is an esteemed thoracic surgeon and medical director with a
distinguished career in medicine. He earned his B.B.A. in Finance, summa cum laude, from
Baylor University and his M.D. from The University of Texas Southwestern Medical School,
where he was a member of Alpha Omega Alpha. Dr. Greenfield completed his residency in
General Surgery and a fellowship in Cardiothoracic Surgery at The Medical College of Virginia
Hospitals, followed by a fellowship in Pediatric Cardiovascular Surgery at The Hospital for Sick
Children in Toronto.
His interests include wound care, hyperbaric medicine, and cardiothoracic surgery. Dr.
Greenfield is a fellow of the American Board of Thoracic Surgery and holds active medical
licenses in multiple states. He has held academic positions at Tulane University, Texas Tech
University, and East Tennessee State University. Dr. Greenfield has conducted significant
research, including studies on myocardial protection and preservation, and has been a principal
investigator in clinical trials focusing on cardiovascular events and pulmonary hypertension

Melissa Jennifer Baldwin MD

Subspecialization
Vascular Surgery

Dr. Melissa Baldwin, MD, is a highly accomplished vascular surgeon and Assistant Professor of
Surgery specializing in Vascular Surgery. She completed her medical education at Boston
University, earning a Bachelor of Arts in Medical Science and Doctor of Medicine degrees with
cum laude honors. Dr. Baldwin continued her training with residency and chief residency in
Vascular Surgery at the Icahn School of Medicine at Mount Sinai in New York.
Board-certified in Vascular Surgery, Dr. Baldwin holds certifications including RPVI and ACLS.
She is a distinguished member of the Alpha Omega Alpha Medical Honor Society and has
contributed significantly to vascular surgery through presentations and publications. Dr.
Baldwin’s research interests include endovascular interventions and complex vascular cases.
She is committed to advancing patient care and serves as a mentor to medical students and
residents in her field.

David Roshal DO

Subspecialization
Neurology, Neurophysiology

Dr. David A. Roshal is an experienced neurologist specializing in stroke and neurophysiology.
He serves as a Clinical Assistant Professor of Neurology at Rowan University School of
Osteopathic Medicine and completed his Clinical Neurophysiology Fellowship at Drexel
University College of Medicine. His extensive training includes a Neurology Residency at
Thomas Jefferson University Hospital and an Internal Medicine Internship at SUNY Upstate
Medical University.
Dr. Roshal holds board certifications in Clinical Neurophysiology and Neurology. He has
received numerous accolades, including being named a “Top Doc” in Neurology by SJ
Magazine. His research and publications span topics such as stroke, epilepsy, and neurological
disorders. Dr. Roshal is fluent in Russian and skilled in interpreting EEG studies.

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