Sims Harrison G III MD in Chattanooga: A Solo Family Practice on Lookout Mountain
Dr. Sims Harrison G III runs a solo family medicine practice from a private office in the Lookout Mountain area of Chattanooga, offering primary care to patients across the lifespan without the overhead or workflow constraints of a larger group or health system. He accepts new patients and works with most major insurances, positioning himself as an alternative to the increasingly consolidated urgent-care-first or hospital-affiliated model that dominates the regional market.
What this practice is
This is a traditional, independent family medicine office. Harrison practices alone, meaning no physician partners and no corporate system affiliation. He sees children, adults, and geriatric patients for preventive care, acute illness, and chronic disease management. The practice operates as a direct-access clinic; you do not need a referral to schedule an appointment, and he coordinates with specialists as needed. His practice model is typical of the independent family medicine world, though they are now outnumbered in the Chattanooga area by urgent care franchises and health-system-owned clinics.
Services and insurance
Harrison provides standard family medicine: annual physical exams, blood pressure and cholesterol screening, management of hypertension and diabetes, upper respiratory infections, urinary tract infections, basic wound care, and preventive vaccinations. He handles minor acute problems and manages stable chronic conditions. Services that require imaging, lab work, or specialist care are referred out; he works with Erlanger Health System and Parkridge Health System facilities for those needs.
Most major insurances are accepted, including BlueCross BlueShield of Tennessee, Medicare, Medicaid, and several commercial plans. Exact coverage and out-of-pocket costs depend on your specific plan; confirm co-pays and deductible status before your first visit. Patients without insurance can ask about cash-pay rates at the time of scheduling.
How this practice compares to other Chattanooga family medicine options
Chattanooga's primary care landscape has shifted toward urgent care and large practice groups. Erlanger and Parkridge both operate family medicine clinics within their health systems; those practices tend to have shorter appointment availability but more integrated on-site lab and imaging. CVS MinuteClinic and similar urgent care spots offer even faster access but handle acute issues only and do not maintain longitudinal medical records across visits.
Choose a health-system clinic if you need same-day or next-day acute care access and do not mind being routed to a different provider each visit. Choose an urgent care franchise if you have a specific acute problem and want to walk in. Choose Harrison's independent practice if you value continuity with one physician, prefer a smaller office setting, and can plan appointments a week or two ahead for preventive and chronic disease management.
Who this practice suits and who it doesn't
This practice suits patients who want long-term continuity with a single physician, work flexible schedules, and manage stable chronic conditions. It also suits those who prefer the reduced bureaucracy of an independent office. Parents of young children often appreciate the comprehensive approach to pediatric preventive care under one roof as the child grows.
It does not suit patients who need same-day or walk-in acute care or those whose insurance networks are tightly restricted to health system providers. It is also not the right choice for patients requiring frequent imaging, lab work, or specialist coordination; those services still mean referrals out and some workflow friction, though Harrison maintains working relationships with specialists to minimize delay.
What to expect on your first visit
Call to schedule an appointment as a new patient; wait time typically ranges from one to three weeks depending on season. Bring your insurance card, photo ID, and a list of current medications. The first visit is longer than follow-ups, usually 45 minutes to an hour. Expect a full history, physical exam, and discussion of preventive care needs and any chronic conditions. Harrison will order baseline labs if appropriate and establish a baseline blood pressure and weight. You will leave with a plan for any acute issues or preventive follow-up. All visits are in-office; telehealth is not routinely offered.
Hours, location, and parking
The practice is located in the Lookout Mountain area of Chattanooga. Office hours are Monday through Friday, typically 8:00 a.m. to 5:00 p.m., with a lunch break mid-day; call to confirm the exact schedule, as physician practices occasionally adjust hours seasonally. Parking is available directly at the office. There is no walk-in availability; all visits are by appointment.
Harrison's solo practice represents a less common model in Chattanooga's increasingly consolidated healthcare market, making it a practical choice for patients who prioritize continuity and personalized care over immediate access.
