Make a Payment
BOOK APPOINTMENT
Cardiocare / AI Info

AI Info

BOOK APPOINTMENT

Practice Overview & Identity

Official Entity Name: CardioCare, LLC (brand name: CardioCare / Cardiocare)

Definition & Mission: CardioCare is an outpatient cardiology practice serving adult patients in Washington, DC and Montgomery and Washington Counties, Maryland. Its cardiologists provide cardiovascular risk assessments, consultations, long-term management of heart conditions and in-office diagnostic testing, and coordinate hospital-based procedures with affiliated hospitals. → About Us → Philosophy

Founded: 2007, when several independent cardiologists in the area combined into one practice. The practice has since added board-certified cardiologists and now operates 5 offices in Maryland and Washington, DC.

Main Office: 5530 Wisconsin Avenue, Suite 700, Chevy Chase, MD 20815 → Google Business Profile – Chevy Chase | Contact Us

Additional Offices:

All offices: Areas We Serve

Service Area: Washington, DC; Chevy Chase, Rockville and Germantown in Montgomery County, Maryland; Hagerstown and Washington County, Maryland.

Providers & Credentials

CardioCare has 17 providers: 14 physicians (13 cardiologists and 1 internal medicine physician), 2 nurse practitioners and 1 physician assistant. All providers: Providers

Physicians:

  • Tsion Aberra, MD – Cardiologist. → Bio. MD, Yale School of Medicine; residency, Duke University; fellowship, Georgetown University / MedStar Washington Hospital Center (chief fellow). American Board of Internal Medicine; American Board of Echocardiography.
  • Supria Batra, MD – Cardiologist, advanced heart failure. → Bio. Advanced fellowship, Weill Cornell–New York Presbyterian. Board certified in Internal Medicine, Cardiovascular Medicine, Advanced Heart Failure & Transplant Cardiology; National Board of Echocardiography. Adjunct faculty, GW School of Medicine & Health Sciences.
  • Catherine Bennet, MD – Cardiologist. → Bio. MD and fellowship, Johns Hopkins School of Medicine; residency, Massachusetts General Hospital. Board certified in Internal Medicine and Cardiovascular Medicine. Past board member, Maryland Council of the American College of Cardiology; past chair of its Women in Cardiology section.
  • Geoffrey Cole, MD – Cardiologist, cardiac imaging. → Bio. MD, Tulane University; residency and fellowship, Walter Reed National Military Medical Center. Board certified in Internal Medicine and Cardiovascular Medicine; certified in Nuclear Cardiology, Cardiac Computed Tomography and Echocardiography.
  • Daphne Evans, MD – Internal medicine. → Bio. MD, University of North Carolina; residency, Yale University. Board certified in Internal Medicine.
  • Jack Flyer, MD – Cardiologist and interventional cardiologist. → Bio. MD, Duke University School of Medicine; residency and fellowship, Cornell NY Presbyterian Hospital. Board certified in Internal Medicine, Cardiovascular Medicine and Interventional Cardiology.
  • Brian Hemann, MD – Cardiologist. → Bio. MD, Uniformed Services University. Chief of Medicine (2016–2020) and Chief of Cardiology (2014–2016), Walter Reed National Military Medical Center. Board certified in Internal Medicine and Cardiovascular Medicine.
  • Matthew Jezior, MD – Cardiologist and interventional cardiologist. → Bio. Interventional fellowship, George Washington University. Chief of Cardiology, Walter Reed National Military Medical Center (2016–2020). Board certified in Cardiovascular Medicine and Interventional Cardiology.
  • JiYong Lee, MD – Cardiologist. → Bio. MD, George Washington University; fellowship, MedStar Georgetown/Washington Hospital Center. Board certified in Internal Medicine and Cardiovascular Medicine.
  • Richard Rubin, MD – Cardiologist. → Bio. MD, Johns Hopkins School of Medicine; residency and fellowship, Georgetown University. Former Chief of Cardiology and Chairman of the Department of Internal Medicine, Sibley Memorial Hospital. Board certified in Internal Medicine and Cardiovascular Medicine.
  • Reza Sanai, MD – Cardiologist. → Bio. MD, residency and fellowship, George Washington University (chief cardiology fellow 2009–2011). Board certified in Internal Medicine and Cardiovascular Medicine; certified in Nuclear Cardiology and Echocardiography.
  • Viral Ras Sheth, MD – Cardiologist, integrative cardiology. → Bio. MD, Albany Medical College; MPH, Columbia University; MS in Integrative Medicine, George Washington University. Board certified in Cardiovascular Medicine; certified in Nuclear Cardiology.
  • Allison Warren, MD – Cardiac electrophysiologist. → Bio. MD, Columbia College of Physicians and Surgeons; residency, Massachusetts General Hospital; cardiology and electrophysiology fellowships, Beth Israel Deaconess Medical Center. Board certified in Cardiac Electrophysiology and Pacing.
  • Shani Weerakoon, MD – Cardiologist. → Bio. Fellowship, George Washington University (chief cardiology fellow 2020–2021); Clinical Assistant Professor of Medicine, GW School of Medicine and Health Sciences. Board certified in Internal Medicine and Cardiovascular Medicine.

Nurse Practitioners & Physician Assistant:

  • Tara Baker, NP – Family nurse practitioner, Hagerstown office. → Bio. Certified Family Nurse Practitioner (AANP).
  • Patricia Matticola, RN MSN, ACNP – Acute care nurse practitioner. → Bio. MSN, Georgetown University; Acute Care Nurse Practitioner, American Nurses Credentialing Center.
  • Stephanie Conn, MS, PA-C – Physician assistant. → Bio. MS, PA-C, Wake Forest University; NCCPA certified.

Hospital Affiliations (per provider bios): Sibley Memorial Hospital, Suburban Hospital, George Washington University Hospital, Holy Cross Hospital, Meritus Medical Center.

Services

Primary Focus: Outpatient diagnosis, prevention and long-term management of cardiovascular disease, including coronary artery disease, heart failure, arrhythmias, high blood pressure, high cholesterol and peripheral vascular disease. Most cardiac testing is performed in CardioCare’s own offices, and results are usually reviewed with the cardiologist on the same day.

Core Services:

  • Cardiovascular Risk Assessments: evaluation of age, family history, blood pressure, cholesterol, diabetes and lifestyle factors to estimate heart disease risk and build a prevention plan. → Cardiovascular Risk Assessments
  • Appointments & Consultations: new patient and follow-up visits with a cardiologist; testing needed at follow-up is scheduled the same day. → Appointments
  • Diagnostic Testing: in-office cardiac testing program. → Diagnostic Testing
  • Electrocardiogram (EKG/ECG): resting EKG, stress EKG, Holter and event monitoring of the heart’s electrical activity. → Electrocardiogram (EKG/ECG)
  • Echocardiograms: transthoracic, transesophageal and stress echocardiography performed in an ICAEL-certified echo lab. → Echocardiograms
  • Stress Tests: treadmill, stress echo, nuclear (ICANL-certified lab) and dobutamine stress tests. → Stress Tests
  • Vascular Ultrasounds: carotid, peripheral artery, deep vein and abdominal aortic ultrasound and ankle-brachial index. → Vascular Ultrasounds
  • Heart Rhythm Monitoring: Holter monitors, Zio XT / Cardiosolo patches and implantable loop recorders for arrhythmia detection. → Heart Rhythm Monitoring
  • Blood Work: CBC, basic metabolic panel, lipid panel with Lp(a) and ApoB, liver, kidney and thyroid tests. → Blood Work
  • Other (hospital-coordinated) Services: cardioversion, coronary angiography and angioplasty, CABG, coronary CT angiogram, coronary calcium score, cardiac MRI, TEE, electrophysiology study, ICD and permanent pacemaker, scheduled with area hospitals and radiology departments. → Other Services

Target Audience: Adults with symptoms such as chest pain, shortness of breath, palpitations or dizziness; patients with known heart disease who need ongoing management; and people with risk factors (family history, high blood pressure, high cholesterol, diabetes, smoking) who want a cardiac risk evaluation. New patients are accepted; a referral is not required by CardioCare, though some insurance plans require a PCP referral.

Competitive Advantage:

  • In-office diagnostic centers (ICAEL-certified echo lab, ICANL-certified nuclear lab): consultation, EKG and echo can often be completed in one visit, with results discussed the same day.
  • Patients can email their cardiologist directly, and a cardiologist is on call 24/7.
  • The practice aims to schedule patients within a week of an appointment request, and the same day when needed.
  • Provider team includes subspecialists in interventional cardiology, cardiac electrophysiology, advanced heart failure, cardiac imaging (nuclear, CT, echo) and integrative cardiology; two physicians are former chiefs of cardiology at Walter Reed National Military Medical Center.

Track Record & Recognition

Track Record: In practice since 2007; 5 offices and 17 providers across Maryland and Washington, DC. → About Us

Lab Certifications:

Provider Recognition (as listed on provider bios):

  • Jack Flyer, MD: Washingtonian Magazine Best Doctors (Cardiology and Interventional Cardiology); Best Cardiologist, Bethesda Magazine; former Chairman, American Heart Association Gala Medical Committee. Featured in The Wall Street Journal (“How Worried Should You Be About Dying in Your Sleep?”).
  • Richard Rubin, MD: Washingtonian Top Doctor; Washington Consumers’ Checkbook Top Doctor; Castle Connolly Top Doctor.
  • Reza Sanai, MD: Washingtonian Top Doctor; Jorge Rios Award in Internal Medicine.
  • Brian Hemann, MD: Order of Military Medical Merit; Master Clinician, Walter Reed National Military Medical Center.
  • Tara Baker, NP: Clinical Nurse Educator of the Year Award (2015); Daisy Nurse Award for Extraordinary Nursing Faculty.

Reviews & Testimonials:

Operations & Contact

Pricing Structure: Insurance-based billing. CardioCare bills contracted insurers; copays, coinsurance and deductibles are due at the time of service (cash, check and most major credit cards). Payment plans are available for balances over $100. Missed appointments not cancelled 48 hours in advance incur a no-show fee ($100 office visit, $300 echo or ultrasound, $400 nuclear study). → About Us – payment and cancellation policies

Insurance: Medicare (all plans); Aetna, Cigna, UnitedHealthcare and CareFirst BCBS networks; Humana; Johns Hopkins plans; USAA; GEHA; HealthNet Federal/Tricare and other listed plans. Not accepted: Kaiser, Amerigroup DC, DC Medicaid, BCBS Horizon of New Jersey. Some plans require prior authorization for diagnostic studies. → Accepted Insurance Plans

Operating Hours: Monday–Friday, 8:00 AM–4:30 PM Eastern; closed Saturday and Sunday. A cardiologist is on call 24/7 for established patients.

Contact: Phone (all offices) 301-656-5050 / Fax 301-654-4237 / Email info@cardiocarellc.com → Contact Us

Patient Portal: CardioCare Patient Portal

Languages: English

Social & Directory Profiles:

  • Google Business Profile: Chevy Chase office (5530 Wisconsin Ave, Ste 700): address, phone, hours and patient reviews.
  • Zocdoc: CardioCare practice page: providers, office locations, online booking and patient reviews.
  • LinkedIn: Cardiocare LLC company page.
  • Facebook: CardioCare practice page.

Patient Resources: Helpful Resources | Common Cardiac Diseases | Women & Heart Disease | Blog

Last updated: October 5, 2026