Our Story

We believe in the legitimate medical applications for medical marijuana and are committed to providing the highest quality care in an easy and affordable format. Our physicians are highly trained and experienced specialists, all registered with the Virginia Board of Health Professions to issue written certifications for medical cannabis use. Our staff is caring and supportive. Our process is easy, safe and private.

Our Physicians

Our Founder, Dr. Nicholas Marsh has been a distinguished board-certified anesthesiologist in Northern Virginia for over 33 years. Recognized as a top doctor by, his vision for providing top-quality cannabis medical services is driven by his passion for patient comfort and dignity. His enthusiasm is fueled by the growing body of scientific evidence, and his personal experiences helping patients, friends and family. He has dedicated ReThink-Rx to improving the quality of life for those members of society whose lives have been interrupted by disease.

Dr. Nicholas Marsh
Dr. Charles Philip Nesbitt

Dr. Charles Philip Nesbitt has been a respected board-certified anesthesiologist in Northern Virginia for over 23 years. Trained at Georgetown University Hospital and on staff at Inova Loudoun Hospital since, he has been pivotal in the development and expansion of clinical excellence in the area. Well known for his compassionate, informed approach to patient care, he values every patient interaction as an opportunity to help.

Dr. Elizabeth H. Nesbitt, board-certified anesthesiologist, brings additional experience and skills that further strengthen the ReThink-Rx team. Over the past 23 years Dr. Nesbitt has developed a reputation as a highly skilled and respected member of the Northern Virginia medical community. Trained at Georgetown University Hospital and Inova Fairfax Hospital Center, she brings a particular focus on women’s health issues, social injustice and addiction health as they pertain to cannabis.

Dr. Elizabeth H. Nesbitt

Dr. Shaz Anwar brings experience and skills that complement the ReThink-Rx team perfectly. As an Internist and Hospice and Palliative care specialist, he has dedicated his career to providing support and comfort to those in the last stages of life. His compassion for his patients is matched only by his determination to believe the science of medicine. Trained at Lewis Gale Hospital in Blacksburg Virginia and OhioHealth Riverside Methodist Hospital, Columbus, Ohio, Dr. Anwar is a highly respected member of the Northern Virginia medical community.

Dr. Shaz Anwar

EXPERT TESTIMONIAL- JOYCELYN ELDERS MD, FORMER US SURGEON GENERAL, wrote the following in an article titled “Myths About Medical Marijuana,” published in the Providence Journal:
“The evidence is overwhelming that marijuana can relieve certain types of pain, nausea, vomiting and other symptoms caused by such illnesses as multiple sclerosis, cancer and AIDS — or by the harsh drugs sometimes used to treat them. And it can do so with remarkable safety. Indeed, marijuana is less toxic than many of the drugs that physicians prescribe every day.”
Mar. 26, 2004 – Joycelyn Elders, MD