Nationally Recognized Lyme Disease & Functional Medicine Specialists
Your Mental Health Matters. You’re not alone, we’re Here to Help.
Led by Dr. Samuel Shor, Internal Medicine of Northern Virginia offers personalized functional medicine for complex chronic illnesses, including Lyme disease. We empower patients through comprehensive care and a collaborative approach.
(703) 709-1119We specialize in Lyme disease, fibromyalgia, and other complex conditions, offering compassionate care and hope for healing.
Personalized Care
Your health care is unique to you. We craft individualized treatment plans that suit your specific needs and goals. Whether you're dealing with chronic fatigue, fibromyalgia, nonrestorative sleep, mold exposure or mast cell activation syndrome, we'll find a treatment for you.
Convenient Telehealth
Access expert care without leaving home. Our secure virtual appointments are designed for your convenience and comfort.
Trusted & Experienced
As former president of ILADS and author of multiple papers, including defining Chronic Lyme Disease, Dr. Shor brings years of experience to his care of patients with Lyme disease and other vector-borne infections.
Holistic Approach
We believe in treating the whole person. Our care combines medication, nutraceutical therapies, and lifestyle support to help you achieve balance.
Comprehensive Approach to Lyme Disease & Chronic Illness
We are a Center of Excellence for the treatment of Lyme Disease.
We help you manage chronic conditions that affect your every day life.
Established patients seen same day/within 24 hours. New patients with tick bites or acute Lyme disease within 48 hours. Call 703 709-1119
A way to deliver amino acids, minerals, and vitamins directly into the bloodstream.
We offer blood drawing on site; With the capacity to process testing to various reference and specialty laboratories.
Caring Health Concierge Membership Plan service with Dr. Shor and PA Porterfield.
Dr. Samuel Shor, MD, FACP
Dr. Samuel Shor, MD, FACP
Dr. Samuel Shor is a nationally recognized specialist in Lyme disease and complex chronic conditions. With 40 years of medical excellence, he brings extensive expertise to Internal Medicine of Northern Virginia, focusing on patients with chronic fatigue, fibromyalgia, and Lyme disease.
As a past president of the International Lyme and Associated Diseases Society (ILADS) and an Associate Clinical Professor at George Washington University Health Care Sciences, Dr. Shor has significantly contributed to the understanding and treatment of Lyme disease. His dedication extends to advocating for improved diagnostic and treatment standards, including service on Virginia Governor McDonnell’s task force on Lyme disease and chairing the Loudoun County Lyme Commission.
Veronica Porterfield, MS, LN, MPAS, PA-C
Veronica Porterfield, MS, LN, MPAS, PA-C
Veronica Porterfield is a physician assistant and licensed nutritionist at Internal Medicine of Northern Virginia, specializing in functional medicine. Driven by her personal experience of seeing functional nutrition transform her child’s health, she transitioned from international affairs to healthcare, acquiring degrees in nutrition and physician assistant studies.
Certified in functional medicine through the IFM, Veronica focuses on autoimmune conditions, hormone optimization, Lyme disease, and other complex chronic illnesses. She employs a holistic approach, combining lifestyle, nutrition, and tailored medical interventions. Having navigated her own health challenges, she brings deep compassion and understanding to her patient-centered care, emphasizing hope and healing.
Sarah Zarpentin, RN
As a dedicated and compassionate Registered Nurse with five years of diverse experience in progressive care, women’s health, and IV vitamin therapy.
With a strong skill set in phlebotomy, IV administration, and organizational efficiency, she takes pride in fostering a positive and supportive atmosphere for both patients and colleagues. Committed to delivering high-quality care and continuously expanding her expertise. Thus making meaningful impact in the lives of those she serves.
Rovin Perera
A detail-oriented Office Coordinator with a passion for creating a welcoming and smooth-running office environment. Being the first point of contact, making sure patients feel comfortable, and keeping things running efficiently behind the scenes are his goals.
Rovin brings a warm, professional approach to every interaction. He strives to create a positive and stress-free environment for everyone who walks through the door.
Compassionate Care for Complex Needs
We are a specialty care functional medicine practice that focuses on the management of complex chronic illness, including chronic Lyme disease, while supporting optimal health and wellness. Patients can expect thorough assessments, including comprehensive histories and directed lab testing. We allocate longer than usual office visits, while developing personalized treatment plans. We see ourselves as partnering with our patients, by emphasizing insight and understanding. In so doing, we foster an active participation in one’s health, empowering our patients and improving the likelihood of positive outcomes.
We provide communication with our patients through a secure online portal access. This facilitates requesting prescription renewals, managing health records and interacting with our staff.
“I love Dr. Shor and staff! W have a bond-family. Dr. Shor helped me get my life back. Absolutely love you Dr. and your staff”
Verified Patient
“Dr. Shor, the medical and admin staff are all great. They helped save my life literally. My health had deteriorated to a point where I was somewhat concerned about surviving. Now I’m feeling good again. Thank you”
Verified Patient
“Dr. Shor is the ‘best doctor’ I have known. He has saved my life about Lyme. He is kind, courteous and intuitive.”
Verified Patient
“Have seen a number of internists over the years, and just want to say that Dr Shor is NOT your average internist. He knows so much more about so many things, and is able to help, when another internist would have to pass you off to a specialst for anything but the very basic problems. Beyond that, it's obvious that he truly cares about his patients, doesn't overcharge, and works long hours to give everyone the very best care. I sincerely trust him with my life. Can't imagine that you could find a better internist. Please don't ever retire!”
Verified Patient
“When I first met Dr. Shor, I was in intensive care, 29 years old, and frightened. I was very ill. He was direct but kind. He didn't tell me what I wanted to hear, but he told me what I needed to hear. In the past, I often felt patronized or marginalized by health professionals. Dr. Shor gives his patients respect, validation and the truth. I have chronic illness (Crohns disease and Lyme). Under Dr. Shor's care, I believe that I am a part of a treatment team. There is honest dialogue and trust between us. His excellent patient care should be the standard, not the exception. I am grateful to be his patient. Sterling, VA”
Verified Patient
“Miracle worker is the term I would use to describe Dr. Shor. There is no other doctor who treats you with respect the way Dr. Shor does. You are truly a part of your own healthcare team. If this is not enough, Dr. Shor really listens and addresses all of your concerns. You never feel rushed or that your concerns are not valid. I know that without Dr. Shor I would not have gotten my life back. I have gone from someone who was so fatigued that I had become isolated because I was unable to perform even the simplest of tasks on a daily basis to someone who has begun to have a life again. Words can never express my gratitude. You are truly a rare doctor and person. You have set a standard that all doctors should aspire too. I am just grateful that I am one of your patients”
Verified Patient
“Dr. Shor, You have helped so many people and I would love to write a testimonial. Just had lunch with a friend last night and she said she couldn't believe how much my health has changed and she remembered when I used to be so sick, go to the hospital and have such exhaustion I couldn't get out of bed. So amazing how much you have changed my life! I can never thank you enough!”
Verified Patient
Appointment Request
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or Call us at (703) 709-1119