Our Medical Expert Board

Board-certified physicians review our content to ensure medical accuracy.

Our board-certified physicians review our content to ensure  it is medically accurate.

The Medical Expert Board is comprised of board-certified physicians and health care professionals who work with Health.com’s editorial team to ensure our articles and content is medically accurate, relevant, and up-to-date.

These experts share our mission to inform and empower you with accurate, empathetic, and actionable health information so you can make the best choice for your health.

Meet our members:

Emergency Medicine

Kimberly Brown, MD, MPH
Kimberly Brown, MD, MPH, is an emergency medicine physician in Memphis, Tennessee, and also serves as a telemedicine physician. She is a best-selling author, national speaker, and co-host on The Real Rx podcast. 

Jordan Haber Hazan, MD
Jordan Haber, MD, MACM, is an emergency physician at University Medical Center in Las Vegas, where she serves as director of Clinical Education and Simulation for the residency program.

Michael Menna, DO
Michael Menna, DO, is an attending emergency medicine physician at White Plains Hospital in White Plains, New York. He also works at an urgent care center, addressing more general conditions, and provides telemedicine services to patients across the country. 


Isabel Casimiro, MD 
Isabel Casimiro, MD, PhD, is an endocrinologist at the University of Chicago in Illinois. She has extensive experience providing gender-affirming hormone therapy and improving education regarding transgender medicine for endocrinology fellows. Her work with transgender patients has been published in the Journal of the Endocrine Society and Transgender Health. 

Family Medicine

Rochelle Collins, DO 
Rochelle Collins, DO, is a family medicine physician with a private practice in Bloomfield, Connecticut, that focuses on preventative care and functional medicine through the promotion of health and wellness. 

Jason DelCollo, DO 
Jason DelCollo, DO, is a family medicine physician affiliated with American Family Care Urgent Care and Family Medicine clinic in Aston and Havertown, Pennsylvania. He is also an educator for residents in family practice and medical students from Philadelphia College of Osteopathic Medicine. 

Elizabeth Molina Ortiz, MD, MPH
Elizabeth Molina Ortiz, MD, MPH, is a specialist in family medicine and is both the health equity clinical lead and a primary care provider at Atrius Health in Boston, Massachusetts. She has a passion for preventative and patient-informed care and an interest in addressing the social factors that impact health and well-being.

Jennifer Pollard Ruiz, MD
Jennifer Pollard Ruiz, MD, is a family medicine physician and experienced medical writer. She has practiced primary care for over 20 years in the public, private, and government sectors. She believes in a whole-person approach to care that is personalized and collaborative.

Sameena Zahoor, MD
Sameena M. Zahoor, MD, is a family medicine specialist currently working as an outpatient primary care physician for Beaumont Health System in Michigan. She also volunteers part-time at the Hope Clinic, which provides free primary medical care to uninsured and under-insured patients.

Infectious Disease

Ronald Lubelchek, MD
Ronald Lubelchek, MD, is an infectious disease specialist in Chicago, Illinois. He currently serves as an attending physician at John H. Stroger, Jr. Hospital of Cook County, an assistant professor in the department of internal medicine at Rush University Medical Center, and the medical director of tuberculosis care for the Cook County Department of Public Health. 

Internal Medicine

Anju Goel, MD, MPH 
Anju Goel, MD, MPH, is a public health consultant and internist with over 10 years of experience addressing communicable disease, health policy, health promotion, and disaster preparedness within the California public health system. For the past two years, she has worked for the CDC as a consultant on the COVID-19 response. 

Jane Kim, MD
Jane Kim, MD, is currently a medical editor and writer, and consults for digital content for physician medical education. Dr. Kim has previously worked as an internal medicine physician in private practice at various multi-specialty practices. 

Isaac O. Opole, MD, PhD
Isaac O. Opole, MD, Ph.D FACP is an internal medicine physician specializing in general and geriatric and hospital medicine at the Kansas University Medical Center. He serves as the Ruth Bohan Teaching Professor of Medicine and Associate Vice Chancellor of Student Affairs. At the national level, Dr. Opole is a regent of the American College of Physicians, a director of the Government Employees’ Health Association, and a civil surgeon of the US. 

Keri Peterson, MD
Keri Peterson, MD, is an internal medicine physician at her private practice in Manhattan. She is a frequent media spokesperson and the author of the e-book Sexy Ever After: Intimacy Post-Cancer.

Kashif J. Piracha, MD
Kashif J. Piracha, MD, is board-certified in both internal medicine and nephrology and is a practicing physician at Methodist Willowbrook Hospital in Houston, Texas. Dr. Piracha is also the clerkship director of internal medicine for the Texas A&M College of Medicine at Methodist Willowbrook site.

Jenny Sweigard, MD
Jenny Sweigard, MD, is an internal medicine physician practicing general and critical care medicine at Novant Health Huntersville Medical Center in Huntersville, North Carolina. She is also an educator of resident doctors and assistant practice clinicians at Novant Health.

Cristian Zanartu, MD
Cristian Zanartu, MD, MPH, is an internal medicine physician specializing in supportive and palliative care. He has worked for more than seven years at two cancer centers in New York City and also has practiced pPrimary cCare. 


Ashley Baumohl, MPH, RD
Ashley Baumohl, MPH, RD, CDN, CNSC, is a registered dietitian focused in surgery nutrition and digestive disorders. She is the owner of AB Nutrition Therapy and practices as a surgical and GI dietitian at Lenox Hill Hospital in New York City.

Hans (Jonathan) Purtell, MS, RD, CDN
Hans Purtell, MS, RDN, CDN, is an in-patient registered dietitian at Lenox Hill Hospital in New York City, primarily working with patients in surgical and neurosurgical intensive care, orthopedic, post-bariatric, and gastrointestinal units.


David Hampton, MD 
David Hampton, MD, MEng, FACS, is a general surgeon specializing in trauma and acute care surgery as well as surgical critical care. He is an assistant professor of trauma and acute care surgery at the University of Chicago. Dr. Hampton also serves as a commander in the US Naval Reserves, assigned to the 4th Marine Logistic Group, Surgical Company Bravo.