Cardiologists specialise in the heart and blood vessels: rhythm, blood pressure, cholesterol and heart disease. Below are 35 cardiologists practising in Maryland, across Baltimore, Bethesda, Silver Spring, Chevy Chase, Rockville and Annapolis, with what to bring and ask so your visit counts.
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Listings come from the CMS NPPES NPI Registry, the public federal record of licensed providers, checked October 2026. Being listed is not a recommendation or an endorsement, and we do not receive anything from these doctors. Call the office to confirm insurance, availability and that they are accepting new patients. In an emergency, call 911.
After your visit
Cardiology care is mostly what you do between visits. Patterns in heart rate, blood pressure and symptoms over weeks tell your cardiologist far more than a single reading in the office. Apple Health already records much of this; the trick is seeing it next to how you felt. Emerge Care, free to download on iPhone, is built for exactly that: tell it how you feel in your own words, get plain answers with the source behind every fact, and walk into your next cardiologist appointment in Maryland with a one-page summary and your questions ready.
Emerge Care never diagnoses or replaces your doctor.
This page lists 35 cardiologists practising in Maryland, including Baltimore, Bethesda, Silver Spring, Chevy Chase, Rockville and Annapolis, from the federal NPI Registry. Call the office to confirm they take your insurance and are accepting new patients.
It depends on your insurance plan, not the state. HMO plans usually need a referral from your primary care doctor; many PPO plans do not. Check with your plan before booking.
A list of everything you take, including supplements, with how often; Your insurance card and photo ID; Recent lab results or imaging reports, if another clinician ordered them; Home blood pressure readings, with dates and times; Any ECG or rhythm notifications from your watch.
It depends on your insurance. Many plans need a referral from your primary care doctor; others let you book directly. Check with your plan first.
Chest pain or pressure, especially with shortness of breath, sweating, nausea or pain spreading to the arm, jaw or back, needs emergency care. Call 911 rather than waiting for an appointment.
Works with Apple Health and Apple Watch. Your health records stay on your phone.