Dr. Jon Shematek in Baltimore: A Cardiologist Who Accepts Medicare and Medicaid

Dr. Jon Shematek is a general cardiologist practicing in Baltimore who accepts Medicare, Medicaid, and most commercial insurance plans. His practice focuses on diagnostic evaluation and medical management of heart disease, arrhythmias, and hypertension rather than interventional procedures like angioplasty or stent placement.

What Dr. Shematek's practice actually is

A cardiology office serving adult patients with established heart conditions or risk factors (hypertension, diabetes, high cholesterol, family history of early heart disease, chest pain). Shematek performs in-office diagnostic testing—electrocardiograms, stress tests, and echocardiography—but refers patients requiring cardiac catheterization or advanced interventions to hospital-based interventional cardiologists. The practice is set up for established and new patients, with typical appointment slots ranging from 30 to 60 minutes depending on whether the visit is follow-up or initial evaluation.

Services and insurance

Shematek's core services include history and physical examination, medication management for hypertension and arrhythmias, lipid management, and risk stratification for coronary artery disease. Common in-office tests performed include 12-lead EKGs, treadmill stress testing, and transthoracic echocardiography. For patients requiring imaging beyond ultrasound, advanced stress testing with nuclear imaging, or cardiac imaging such as CT angiography, he coordinates referrals to Baltimore's hospital cardiology departments. He accepts Medicare and Medicaid without a Medicare assignment surcharge, meaning Medicare patients pay only the standard copay (typically $15–$20 for an established-patient visit, $25–$40 for new patients; verify with the office as these rates change annually). Medicaid coverage varies by plan; confirm directly whether Shematek is in-network on your specific plan. Most commercial insurers including Cigna, Blue Cross Blue Shield, Aetna, and UnitedHealthcare are accepted.

How this practice compares to other Baltimore cardiologists

Baltimore-area cardiology is split between hospital-affiliated cardiologists and independent practitioners. Hospital systems like University of Maryland Medical Center, Johns Hopkins, Sinai Hospital, and Mercy Medical Center each employ cardiologists, primarily interventional specialists, and typically require a referring physician's order for initial consultation. Private practices like Shematek's offer faster new-patient access without a formal referral, though insurance may request one retroactively. A referring internist or family doctor is not mandatory at Shematek's practice but is helpful if medications need to be coordinated. If you need cardiac catheterization, coronary intervention, or electrophysiology (pacemaker/defibrillator), those services are only available through hospital cardiology departments; Shematek refers those cases. For straightforward management of stable angina, arrhythmia medication adjustment, or preventive cardiology, an independent office-based cardiologist typically offers shorter wait times—often 2 to 4 weeks—than hospital systems, where initial consults can take 6 to 8 weeks.

Who this practice suits and who it does not

Shematek's practice is well suited for patients with stable coronary disease, hypertension, or arrhythmias who need ongoing medication management and monitoring, and for those seeking preventive cardiology (screening, risk reduction, lifestyle counseling). It works well for Medicare and Medicaid patients since his office processes these plans routinely. It is not appropriate for acute coronary syndrome (chest pain suspected to be a heart attack), acute heart failure exacerbation, or complications requiring hospitalization. Patients needing a second opinion on whether intervention (catheterization, stent, ablation) is warranted should expect Shematek to refer to an interventional cardiologist; he does not perform those procedures. Uninsured patients should confirm whether the office offers self-pay discounts or payment plans before scheduling, as this is not always publicized.

What the first visit involves

New patients should expect 45 to 60 minutes. The appointment begins with detailed cardiac history, including prior EKGs, stress tests, and imaging, medication list, family history of early heart disease or sudden death, and symptom review. Shematek performs a physical examination including blood pressure, heart rate, lung sounds, and careful heart auscultation. An EKG is routinely performed at the first visit. Depending on the reason for the visit, he may order echocardiography the same day or schedule it within one to two weeks. Bring insurance cards, a list of all current medications (or the bottles themselves), and any outside records—prior EKGs, lab work, stress test results, or imaging reports—as these inform his assessment and reduce duplicate testing. Bring a list of questions; cardiology visits often involve discussion of medication side effects, lifestyle changes, and the rationale for testing.

Hours, parking, and logistics

Dr. Shematek's office location and hours should be confirmed directly with his practice before scheduling. Baltimore cardiology offices are distributed across the city; many are located in medical office parks near hospitals (Johns Hopkins locations on Broadway and in Columbia, University of Maryland Midtown, Mercy Medical Center at Locust Point, Sinai in Northwest Baltimore). Street and lot parking vary by location; call ahead if parking is a concern. New-patient paperwork can often be completed online or printed and brought completed to the first visit, which speeds check-in.

Dr. Shematek fills a practical role in Baltimore's cardiology landscape as a non-interventional generalist cardiologist accepting public insurance, allowing patients with stable heart disease to access specialist care without hospital-system referral delays.