Primary Care Physician: what they treat and when to see one
A primary care physician (PCP) — also called a family doctor, general practitioner, or internist — is the generalist of medicine. They are trained to evaluate symptoms that have not yet been sorted into a category, treat the majority of them directly, and refer you onward when a specialist is genuinely needed.
What a primary care physician treats
- Colds, flu, infections, and everyday illness
- Annual physicals, screenings, and vaccinations
- Chronic conditions such as diabetes, high cholesterol, and thyroid disorders
- Fatigue, unexplained weight change, and other vague or whole-body symptoms
- Initial evaluation of almost any new symptom
- Coordination of care across multiple specialists
When to see a primary care physician
- You are not sure which type of doctor you need
- Your symptoms affect more than one part of the body
- You need a referral before your insurance will cover a specialist
- You need routine preventive care or a prescription refill
- A symptom is mild but has not resolved on its own
When to seek urgent or emergency care instead
- Chest pain or pressure
- Difficulty breathing
- Sudden weakness, numbness, or confusion
- Uncontrolled bleeding
Do you need a referral?
Many insurance plans require a referral from a primary care physician before they will cover a specialist visit. Our referral checker shows how each plan type usually works. If you are unsure, start with your primary care physician. They can evaluate the problem, treat it directly if appropriate, and refer you if not.
Related symptom guides
Related specialties
Prepare for your appointment
Appointments are short. Our appointment prep sheet builder puts your symptoms and the right questions on one printable page you can take with you.
Sources
- MedlinePlus, U.S. National Library of Medicine (medlineplus.gov)
- Centers for Disease Control and Prevention (cdc.gov)
- Relevant national medical specialty association guidance