McKenzie Mark MD in Chattanooga: Interventional Cardiology with Nuclear Imaging Capability
McKenzie Mark MD is an interventional cardiologist with office-based practice and direct access to nuclear cardiology diagnostics, serving Chattanooga-area patients needing catheterization, stent placement, and coronary imaging without mandatory referral delays between diagnosis and intervention.
What McKenzie Mark MD actually is
An interventional cardiologist differs from a general cardiologist in scope and procedure volume. Where a general cardiologist diagnoses and manages heart disease medically, an interventionalist performs catheterizations, places stents, and handles acute coronary syndromes in a catheterization laboratory. McKenzie Mark's practice operates with in-office nuclear imaging capacity, meaning a patient can receive stress testing and perfusion imaging in the same facility where diagnostic decisions are made. That integration reduces coordination friction common at larger hospitals where imaging, interpretation, and specialist consultation span multiple departments.
Services and what they cost
The practice performs diagnostic and therapeutic coronary angiography, percutaneous coronary intervention (stent placement), and in-office nuclear stress testing. Specific out-of-pocket costs depend on insurance network status and deductible structure; patients should verify whether their plan classifies the office as in-network and whether catheterization procedures require separate authorization. Hospital-based catheterization labs often charge facility fees above physician fees; office-based procedures typically consolidate those costs, though verification with your insurance is essential before scheduling.
Nuclear cardiology studies (stress testing with imaging) are available on-site, eliminating the need to book imaging at a separate radiology center and then return for follow-up consultation.
How this compares to other Chattanooga cardiologists
Chattanooga's major hospital systems, including Erlanger Health and Parkridge Health, employ interventional cardiologists with full catheterization laboratories. Those settings suit emergency interventions and complex cases requiring immediate surgical backup, but they carry facility charges and routine hospital coding that raise out-of-pocket costs for insured patients. Independent cardiology groups without on-site catheterization labs refer interventional cases to hospital partners, introducing a handoff step.
McKenzie Mark's office-based model suits stable angina, elective interventions, and patients seeking to avoid hospital facility fees. It does not suit acute myocardial infarction or cardiogenic shock, which require intensive care and surgical backup. If you are stable and your cardiologist has identified a lesion suitable for elective intervention, the office-based approach reduces total visits and consolidates imaging.
Who this practice suits and does not
This practice suits patients with diagnosed coronary disease who need elective catheterization or stenting, those seeking office-based follow-up after intervention, and anyone wanting diagnostic imaging and specialist review in one location. It suits patients with good insurance coverage for office-based procedures and those whose deductibles or out-of-pocket maximums are lower in independent settings than in hospital outpatient departments.
It does not suit patients with acute chest pain or unstable symptoms (go to the emergency department), those requiring immediate surgical standby, or uninsured patients who may find hospital-based programs with financial assistance more accessible. Patients requiring admission for advanced heart failure management or arrhythmia ablation should expect referral to hospital partners.
What the first visit involves
Initial consultation involves history, physical examination, and often in-office EKG. If prior stress tests or cardiac imaging exist, bring those records or request them sent in advance to avoid duplication. The office typically orders nuclear stress testing during the first visit if diagnostic imaging has not been recent. Stress test results return within days, and a follow-up visit or phone consultation discusses findings and next steps. If intervention is indicated, the practice schedules catheterization at an affiliated facility or discusses office-based procedure feasibility.
Insurance verification happens during scheduling; confirm your plan's stance on office-based catheterization versus hospital facility fees before the appointment.
Hours, parking, and logistics
The practice operates during standard business hours; confirm current hours and holiday closure directly before visiting. Office parking is available on-site. Catheterization procedures are same-day or next-day depending on scheduling and require a driver because sedation is routine. Most patients recover at home the same day after diagnostic catheterization; intervention cases may spend a few hours in observation.
Bring insurance card, photo ID, and a list of current medications, including aspirin dosing if already taking it for heart disease.
Why it matters in Chattanooga
McKenzie Mark fills a gap between high-volume hospital catheterization labs and cardiology practices without intervention capability. For Chattanooga patients with stable coronary disease and good insurance, the office-based model reduces friction, consolidates imaging, and often lowers cost. For those in crisis, the choice remains the emergency department or a hospital-based interventionalist.
