Our doctors

Two doctors at our Tysons office. Panels are small by design.

Northern Virginia Magazine Top Doctors 2020Washingtonian Top Doctor 2021Washingtonian Top Doctor 2022Washingtonian Top Doctor 2023Washingtonian Top Doctor 2024Washingtonian Top Doctor 2025Washingtonian Top Doctor Hall of Fame 2026

Sia Sobhani, MD

Internal Medicine · Washingtonian Top Doctor, Hall of Fame

Panel full · waitlist open
A great fit for
Adults 18+Longevity medicineEarly cancer detection

60+ biomarkers, heart and cancer screening

The practice he always meant to build

Dr. Sobhani has practiced internal medicine since 1994. Georgetown trained, three decades in private practice, and years at the Princeton Longevity Center showed him both sides of American medicine: what rushed primary care misses, and what real prevention catches.

Praeventus is his answer. A small practice where your doctor knows you, the physical takes an hour or more, not fifteen minutes, and the goal is to find problems years before they become diagnoses. Every physician here practices his way.

Background

Since 1994

Private practice, internal medicine, Northern Virginia

Three decades of adult primary care, including executive physicals at the Princeton Longevity Center. Founded Praeventus Health in Tysons.

Clinical instructor, George Washington University School of Medicine

Taught clinical medicine to GWU students alongside practice.

Internal medicine residency, University of Miami, Jackson Memorial Hospital

Trained at one of the largest public teaching hospitals in the country.

1990

MD, Georgetown University School of Medicine

MEd and MS, physiology

Graduate work in education and physiology before medical school.

1984

BS, George Washington University

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Sia Sobhani, MD
★★★★★Google

“I love Dr. Sobhani’s Executive service. It was the most comprehensive physical I’ve had. This is how medicine should be practiced: where the patient is treated with compassion and care.”

Kam N. · Google review

Kavita Tripathi, MD (Dr. T)

Board Certified, Family Medicine

Accepting new patients
A great fit for
Adults 18+Menopause and midlife healthAdvanced prevention and holistic care

60+ biomarkers, heart and cancer screening

The doctor she trained to be

Dr. T has always been the doctor who stays until every question is answered. For over a decade she practiced inside a system built for volume, where a twelve-minute slot was the schedule and never her idea of medicine.

She joined Praeventus to practice the way she trained: 60 to 90 minute physicals, visits that do not get cut short, and patients who can reach her when they need her most. Her focus is women’s health, perimenopause through postmenopause, and patients managing several conditions at once.

Background

2026

Joins Praeventus Health, Tysons

Moves to membership primary care, with the time each visit needs.

2022 to 2026

Family physician, MedStar Health

Family medicine in the MedStar system. 4.9 stars across more than 500 patient reviews.

2017 to 2022

Family physician, SOVAH Health, Virginia

Five years of full-spectrum family medicine in Southside Virginia.

2017

Board certified, American Board of Family Medicine

2014 to 2017

Family medicine residency, Baptist Health, Montgomery, Alabama

Three years of training across clinic and hospital.

2009

MBBS

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Kavita Tripathi, MD (Dr. T)
★★★★★

“Never in a rush. Took whatever time was needed to listen to my concerns.”

Patient review · Healthgrades, September 2025

Our Fairfax office, 15 minutes away · Dr. M, accepting new patients · Cathy Tong, FNP, panel full · See Fairfax doctors →

What to expect at your first visit

The same with either doctor.

60 to 90 minutesA full physical, your history, and time for every question.
60+ biomarkersDrawn in the office by our phlebotomists and nurses. Reviewed with you, not posted to a portal.
A written planWhat we found, what we watch, and what we do next.
Your doctor’s cellYou leave with the number. Call or text any time.

Not sure who is right for you?

Book the 15-minute call. We will match you with the right doctor and schedule your meet and greet.

Book a 15-minute call