Dr. Phanindar Sadhu, MD is a board-certified internal medicine physician with a distinguished background that includes both clinical excellence and military service. With medical training from Gandhi Medical College and subsequent residency at Mt. Sinai School of Medicine’s James J. Peters VA Medical Center, Dr. Sadhu has cultivated a diverse portfolio in internal medicine, hospitalist roles, and academic instruction. His experience spans large multi-specialty hospitals where he has managed patients with a wide array of medical conditions across telemetry, stroke, and cardiac care units, while also mentoring future clinicians through residency programs. Dr. Sadhu is a longtime resident of Loudoun County, and has raised his family there.
Dr Sadhu is now accepting patients at the South Riding and Fairfax Locations.
A former U.S. Army Health Care Specialist and Combat Medic, Dr. Sadhu served from 2010 to 2014, including a year-long deployment to Kandahar, Afghanistan. During this time, he provided trauma and emergency care in Role II and III aid stations — comparable to Level II and I trauma centers — executing critical procedures such as cricothyroidotomy, thoracocentesis, and hemorrhage control under battlefield conditions. He supported convoys, addressed combat-related mental health conditions, and demonstrated leadership, resilience, and clinical acumen in high-pressure environments. This formative experience has profoundly shaped his ability to deliver compassionate and decisive care to patients in Prima Medicine.
Dr. Sadhu is now accepting patients at the South Riding and Fairfax locations.
Hospital-Trained Internal Medicine for Adults of All Ages
Patients often ask what makes an internal medicine physician different. Internists like Dr. Sadhu specialize in the comprehensive care of adults — from routine physicals and preventive screenings to the diagnosis and long-term management of complex, overlapping conditions.
Dr. Sadhu’s years managing patients in telemetry, stroke, and cardiac care units of large multi-specialty hospitals give him something many outpatient physicians never develop: firsthand experience with what happens when chronic conditions go unmanaged. He has cared for patients at their sickest — and that perspective drives his commitment to keeping his primary care patients healthy, stable, and out of the hospital.
His care emphasizes:
- Thorough, unhurried evaluation of new and ongoing symptoms
- Early detection of cardiovascular, metabolic, and neurological risk
- Clear explanation of diagnoses, test results, and treatment options
- Practical, sustainable treatment plans built around each patient’s life
- Careful coordination with specialists when advanced care is needed
- Consistent follow-up to keep conditions controlled over time
Expert Management of Diabetes, Hypertension, and Heart Health
Dr. Sadhu’s hospital background in cardiac and stroke care translates directly into exceptional outpatient management of the conditions that most commonly threaten long-term health:
- Type 2 diabetes and prediabetes
- High blood pressure (hypertension)
- High cholesterol and lipid disorders
- Coronary artery disease and heart disease risk
- Stroke risk assessment and prevention
- Obesity and metabolic health
- Thyroid and endocrine concerns
- Kidney function monitoring
He understands the warning signs that precede serious cardiac and neurological events, and he uses that knowledge to intervene early — adjusting medications, ordering the right tests at the right time, and helping patients make lifestyle changes that meaningfully reduce risk.
Military Discipline, Compassionate Care
Dr. Sadhu’s service as a U.S. Army Combat Medic — including his deployment to Kandahar, Afghanistan — shaped the physician he is today. Providing trauma and emergency care under battlefield conditions taught him to stay calm under pressure, make sound decisions quickly, and treat every patient with dignity regardless of circumstances.
For patients, this translates into a physician who:
- Remains steady and reassuring, even when delivering difficult news
- Knows how to prioritize what matters most in complex situations
- Takes mental health seriously, informed by his experience supporting service members with combat-related mental health conditions
- Brings genuine empathy to veterans, first responders, and their families
Veterans and military families in Northern Virginia often seek out Dr. Sadhu specifically because he understands their experiences firsthand.
A Teacher at Heart — and a Patient Educator
Throughout his career, Dr. Sadhu has mentored medical residents and future clinicians through academic residency programs. That same instinct for teaching defines his patient visits. He believes patients make better health decisions when they truly understand their conditions — so he takes the time to explain what is happening, why a treatment is recommended, and what to expect next, all in clear, practical language.
A Loudoun County Physician Caring for His Own Community
Dr. Sadhu is a longtime Loudoun County resident who has raised his family here. For patients in South Riding, Aldie, Stone Ridge, Ashburn, Brambleton, Chantilly, and the surrounding communities, that local connection matters: their physician shops in the same stores, drives the same roads, and is invested in the health of the same community.
His practice at Prima Medicine’s South Riding office makes high-quality, hospital-trained internal medicine care available close to home for Loudoun County families — with his Fairfax office serving patients across central Fairfax County.
A Trusted Internal Medicine Physician for Northern Virginia
Dr. Phanindar Sadhu, MD brings board-certified expertise, hospital-level clinical depth, military discipline, and genuine community roots to Prima Medicine. His care is ideal for patients looking for:
- A board-certified internal medicine physician in South Riding or Fairfax
- Experienced management of diabetes, hypertension, cholesterol, and heart health
- A physician with hospital, cardiac, and stroke care experience
- A veteran physician who understands military and veteran patients
- Clear communication and genuine patient education
- A doctor with deep roots in the Loudoun County community
Dr. Sadhu is seeing patients at the South Riding and Fairfax offices. Contact us at (703) 870-3750 to make an appointment.
Each of our providers practices at select locations. View the map below to discover where they are available and plan your visit with ease.
Merrifield, VA
South Riding, VA
