Mark Eig, MD in Baltimore: Internal Medicine with Extended Appointment Availability

Mark Eig, MD, is a solo internal medicine practice in Baltimore treating adult patients with general medical conditions, preventive care, and chronic disease management. He operates independently without hospital system affiliation, meaning appointments are scheduled directly through his office and not connected to a larger network's referral infrastructure.

What the practice actually is

Eig runs a traditional fee-for-service internal medicine office focused on primary care and continuity of treatment. He sees established and new patients for conditions including hypertension, diabetes, high cholesterol, and other common chronic diseases. Unlike practices embedded in Johns Hopkins or University of Maryland systems, Eig's independence means patients coordinate any specialist referrals themselves, though he provides recommendations. The practice occupies a single location and is staffed by Eig and administrative support; there is no mid-level provider (physician assistant or nurse practitioner) in the office.

Services and fees

Eig provides standard internal medicine services: comprehensive physical exams, chronic disease management, preventive screening (lipid panels, cancer screening counseling, vaccinations), and acute illness visits for established patients. New-patient consultations typically include a full history and physical; follow-up visits for ongoing conditions are shorter.

Specific pricing is not publicly listed. Like most independent practices, fees are charged per visit on a fee-for-service basis, and payment is typically collected at the time of service or billed to insurance. Patients should confirm out-of-pocket costs with the office before their first appointment, as charges vary by insurance plan and deductible status. Some insurance plans may not cover visits at out-of-network providers, and Baltimore residents with plans through Johns Hopkins, University of Maryland, or other managed-care networks should verify coverage before scheduling.

How this practice compares to other Baltimore options

Baltimore's internal medicine landscape includes large practices embedded in health systems (Johns Hopkins and University of Maryland operate multiple adult medicine clinics across the city, with extended hours and same-day urgent appointments), smaller independent practices, and federally qualified health centers (FQHC) like Chase Brexton and Bon Secours.

A key difference: health system clinics offer same-day or next-day slots for acute problems and often have advanced practice providers (nurse practitioners, physician assistants) available for faster scheduling. They also have direct pathways to specialty care and imaging within the system. Independent practices like Eig's typically require advance scheduling and do not offer walk-in urgent care, but they may allow longer appointment times and more continuity with a single physician.

For uninsured or underinsured Baltimore residents, FQHCs like Chase Brexton offer sliding-scale fees and do not turn away patients based on insurance status, whereas private practices charge standard fees. If you have stable chronic conditions, prefer seeing the same doctor consistently, and can schedule appointments in advance, an independent practice is a fit. If you need immediate care or rely on a large network for referrals and imaging, a health system clinic is more practical.

Who this practice suits and who it does not

Eig's practice suits established patients with managed chronic conditions who value continuity and longer appointments, and who have insurance coverage (either in-network or are willing to pay out-of-pocket). It also works for patients in Baltimore with no time pressure to see a specialist, since Eig can recommend referrals that the patient then arranges.

The practice is not ideal for patients who need urgent or same-day visits, who are uninsured or underinsured, or who are new to Baltimore and need a physician quickly. It does not include ancillary services like in-office phlebotomy or imaging; blood draws are ordered to outside labs, and imaging referrals must be arranged separately.

What the first visit involves

New patients should expect a comprehensive intake history covering past medical history, medications, family history, and social history, followed by a full physical exam. Visits typically take 45 minutes to an hour. Eig may order baseline labs (complete blood count, comprehensive metabolic panel, lipid panel) depending on age and health profile. Patients should bring insurance card and any outside medical records if available. If records are not available, the office will request them from previous providers.

Hours, parking, and logistics

Specific office hours and parking details require direct confirmation with the practice, as independent offices often adjust hours seasonally or in response to provider schedule. Call the office to confirm current hours, availability for new patients, and parking options at the location. Many Baltimore independent practices offer weekday business hours with limited evening or Saturday availability.

Why this practice matters in Baltimore

In a city where most primary care is concentrated in large health systems, Eig's independent practice preserves a model of direct physician continuity that some patients prefer over network medicine. He fills a gap for patients with steady insurance and a need for a single, accessible internist.