H.A.S. Physicians


Personal Healthcare Advocates

707 Cedar Point Pl.

Westlake Village, CA  91362

Phone: 301-634-1579

Email: sorrentinom@comcast.net


Mark Sorrentino, MD, MS


Dr. Mark Sorrentino is the founder and Chief Medical Officer of  H.A.S. Physicians.  As a pediatric critical care physician he has gained extensive experience interacting with families during stressful times.  Additionally he holds a Master’s degree in clinical nutrition, and worked as a Registered Nurse prior to attending medical school.  Dr. Sorrentino gained insight into the complexities of our healthcare system while working as the Medical Director and Chief Medical Officer of a large community hospital in Maryland.  He continues to work part-time as an attending critical care physician at Children’s National Medical Center in Washington D.C., and holds an academic appointment at the George Washington University School of Medicine.  He has published and done research in the areas of patient outcomes, the burden of illness on families, and transplant medicine.


Mark Sorrentino's CV






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