Karen Trent-Mims MD in Baltimore: Internal Medicine with Extended Appointment Hours for Working Adults
Karen Trent-Mims MD operates an internal medicine practice in Baltimore that emphasizes diagnostic depth and preventive care, with extended evening and Saturday hours that accommodate full-time employment—a structural advantage in a city where many primary-care offices close by 5 p.m. or operate weekday-only schedules. This is solo practice, not a large clinic system, meaning continuity of care and direct communication with the physician.
What the practice actually is
Trent-Mims is a board-certified internist providing full-spectrum primary care: diagnosis and management of acute illness, chronic disease monitoring, preventive screenings, medication optimization, and care coordination with specialists. The office sits in Baltimore proper (not a suburban annex), operates from a private practice model, and accepts both established and new patients. Unlike urgent-care centers, this is not for same-day acute complaints; it is for longitudinal care of conditions like hypertension, diabetes, thyroid disease, and cardiovascular risk.
Services, insurance, and what first visits cost
The practice handles routine physical exams, chronic-disease management, preventive health screenings (including age-appropriate cancer screening), medication refills, lab ordering and interpretation, and referral facilitation to cardiology, endocrinology, rheumatology, and other specialists. New-patient appointments typically last 45 to 60 minutes to allow comprehensive history and examination.
Insurance accepted includes Medicare, most commercial plans (Blue Cross Blue Shield, Aetna, UnitedHealthcare), and others; specific plans should be confirmed directly. The practice does not appear to use a published fee schedule online; out-of-pocket costs for uninsured or high-deductible patients should be discussed at scheduling. Establish clear insurance terms before the first visit to avoid unexpected bills.
How the practice compares to other Baltimore internists
Baltimore has several multi-location internal medicine groups (Johns Hopkins Community Medicine, University of Maryland Medical Center primary-care network, Medstar), and solo or small-group independents. The Trent-Mims office stands out for its extended hours, which most hospital-affiliated clinics do not offer; appointment availability on Saturday and until 7 p.m. on select weekdays appeals to workers who cannot leave a job mid-afternoon. Conversely, if you require same-day sick visits or want same-location lab work (phlebotomy and results in one stop), a larger practice hub may be more convenient. If you need coordinated mental-health care or complex social services, hospital-affiliated practices often embed case management; an independent internist refers out.
Who it suits and who it does not
This practice suits working-age adults managing one or more chronic conditions, people returning to primary care after a gap in coverage or moving to Baltimore, and patients who need continuity with a single physician. It does not suit those seeking walk-in urgent care, families requiring pediatric-adult continuity under one roof, or people who cannot navigate a cash-pay model if their insurance is denied at check-in.
What the first visit involves
New patients will complete a detailed health history (medical, surgical, medication, family, and social history). The physician conducts a full physical exam and discusses health goals. Lab work may be ordered at that visit if screening is due (lipid panel, glucose, liver and kidney function, or age-specific cancer screenings). Results are reviewed at a follow-up appointment, typically within one to two weeks. Bring photo ID, insurance card, a list of current medications and supplements, and any outside records (prior test results, discharge summaries from hospitalizations, medication lists from other providers).
Hours, location, parking, and logistics
The practice is located in Baltimore and operates Monday through Friday with hours extending to 7 p.m. on certain days, plus Saturday morning hours. Parking is available at the office site. Confirmation of exact hours and Saturday availability should be made by phone, as clinic schedules can shift seasonally or due to physician commitments. The office accepts phone calls and electronic messaging for medication refills, lab-result questions, and non-urgent issues; urgent complaints (chest pain, severe shortness of breath) require ER evaluation, not office contact.
Why this place matters in Baltimore
In a healthcare landscape dominated by hospital systems and urgent-care franchises, Trent-Mims represents the dwindling category of independent, physician-owned internal medicine practice that prioritizes appointment length and schedule flexibility for employed adults. The extended hours alone address a practical constraint in Baltimore's workforce, and the continuity model suits people managing multiple conditions who benefit from one doctor's longitudinal knowledge of their case.

