About
Dr. Tim Arling is a concierge internist with a private practice in Washington, DC, where he has served adult patients since 2015. He earned his undergraduate degree from Haverford College and his medical degree from the University of Maryland School of Medicine. He completed an outpatient-tailored primary care internal medicine residency at the University of Vermont. He joined the American College of Physicians in 2012 and has held that membership for more than a decade.
Medicine runs in the family for Dr. Arling. His father practiced as a prominent internist in DC for over 40 years, and that example shaped his conviction that knowing patients deeply leads to better outcomes. Dr. Arling treats conditions including diabetes, heart disease, high blood pressure, high cholesterol, lung disease, sleep disorders, and respiratory illnesses. He approaches each patient as a full person, crafting individualized wellness plans, coordinating specialist care, and working to empower patients through education and evidence-based strategies. Washingtonian magazine has recognized him as a Top Doctor every year from 2020 through 2025.
Education & Training
Undergraduate
Haverford College
Medical School
University of Maryland School of Medicine
Residency
Primary Care Internal Medicine, University of Vermont
Conditions Treated
Who is Dr. Arling right for?
Dr. Arling is a strong fit for adults 18 and older who want a primary care physician who knows them well over time. Patients managing ongoing conditions such as diabetes, high blood pressure, high cholesterol, or heart disease benefit from his chronic disease expertise. He also suits patients who prioritize preventive care and want a personalized wellness plan built around their specific health goals. Those who value direct, around-the-clock access to their physician will find his practice model a natural match.
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Frequently Asked Questions
Dr. Arling treats a broad range of adult conditions, including diabetes, heart disease, high blood pressure, high cholesterol, lung disease, sleep disorders, respiratory illnesses, sinus infections, and joint conditions. He also manages chronic illnesses and coordinates care with specialists when additional expertise is needed.
Dr. Arling believes that better outcomes follow when a physician truly knows their patients. He builds individualized wellness plans that combine preventive strategies, patient education, and evidence-based treatment. He views the primary care physician as the quarterback of the healthcare team, coordinating specialist care while serving as the patient's central point of contact.
Dr. Arling earned his medical degree from the University of Maryland School of Medicine. He then completed a residency in primary care internal medicine at the University of Vermont, following an outpatient-tailored track designed for office-based practice.
Dr. Arling specializes in internal medicine and has been a member of the American College of Physicians since 2012. He focuses exclusively on adult and adolescent patients 18 years of age and older.
Yes. Washingtonian magazine has named Dr. Arling a Top Doctor every year from 2020 through 2025, reflecting six consecutive years of peer recognition in the Washington, DC medical community.
Dr. Arling averages 30 to 45 minutes per visit with each patient. Comprehensive physical exams run up to 90 minutes. This time allows him to address health concerns thoroughly and provide thoughtful, personalized guidance.
Yes. Dr. Arling makes himself available to members 24 hours a day, seven days a week by phone, email, or text. The office operates Monday through Friday from 8:00 AM to 4:00 PM for scheduled visits.
Dr. Arling grew up observing his father, a prominent DC internist who practiced for over 40 years. That experience instilled a belief that knowing patients well and spending meaningful time with them produces measurably better health outcomes. That conviction has shaped his entire approach to practice.
Doctor profile last updated April 10, 2026