Most of them. A national analysis of office visits published in the Archives of Internal Medicine found that about 9 percent of visits ended in a referral, meaning roughly nine out of ten problems were settled where they started. Your primary care doctor diagnoses and treats common infections, manages long-term conditions such as diabetes and high blood pressure, handles minor injuries, orders and reads lab work, treats mild depression and anxiety, and gives vaccines. Below is what stays in the office and when a referral genuinely helps.
Conditions Treated in the Primary Care Office
| Category | Commonly handled in the office |
| Long-term conditions | Diabetes, high blood pressure, high cholesterol, asthma, COPD, thyroid disorders, osteoporosis |
| Short-term illness | Colds, flu, sinus and ear infections, strep throat, bronchitis, urinary tract infections |
| Injuries | Sprains, strains, minor cuts, simple fractures |
| Mental health | Mild to moderate depression and anxiety |
| Prevention | Physicals, blood work, vaccines, screening schedules |
| In-office testing | Blood panels, EKG, TB tests, extended heart monitoring |
Same day problems like a fever or a bad cough fall under acute illness treatment, which rarely needs a specialist.
Why Keeping Care in One Office Helps
Breadth pays off. A 2015 study in the Annals of Family Medicine led by Andrew Bazemore reviewed Medicare claims and found that patients of family physicians with a wider scope of practice had lower overall costs and fewer hospital stays than patients of physicians with a narrower one.
Staying in one place also avoids repeat intake forms, duplicate labs, and weeks of waiting for a specialty appointment. Yorktown Health Lisle treats adults and seniors across a broad range of conditions for that reason.
When a Referral Is the Right Call
A referral makes sense when a condition is rare, needs a procedure your doctor does not perform, or is not responding to standard treatment. Suspected cancer, complex heart rhythm problems, joint replacement, and advanced kidney disease all qualify. Even then, your primary care doctor stays involved and keeps the plan unified.
Final Thoughts
The office handles far more than most people expect. Chronic conditions, everyday illness, minor injuries, mental health, and routine screening all belong in primary care, and keeping them there usually means faster answers at lower cost. Review the services offered by this primary care clinic in Lisle, then call to book a visit.