Primary Care, Urgent Care or the ER? How to Decide
Choosing the right level of care saves time and money — and sometimes matters a great deal. A practical guide for adults in Frisco and McKinney.

When you feel unwell, the hardest question is often not what is wrong — it is where to go. Here is how we suggest thinking about it.
Call 911 or go to the emergency room
Some symptoms should never wait. Go straight to an emergency department, or call 911, for any of the following:
- Chest pain or pressure, or pain spreading to the arm, neck or jaw
- Sudden weakness or numbness on one side, facial droop, or trouble speaking
- Difficulty breathing or shortness of breath at rest
- Sudden, severe headache unlike any you have had
- Heavy bleeding, a serious injury, or a suspected broken bone
- Confusion, fainting, or a seizure
Urgent care is a reasonable choice when
Urgent care exists for problems that cannot wait for a routine appointment but are not emergencies — particularly outside office hours.
- Your own clinic is closed and the problem cannot wait until morning
- You need an X-ray for a minor injury
- You have a laceration that may need stitches
Your primary care doctor is usually the better choice when
For most everyday illness during office hours, your own physician is both cheaper and better — because they already know your history, your medications and what is normal for you.
- Coughs, colds, sore throats, sinus symptoms and flu
- Urinary symptoms and most infections
- Rashes and skin complaints
- A flare of something ongoing — blood pressure, diabetes, asthma, reflux
- Medication questions, refills and side effects
- Anything you would describe as "something is not right and I am not sure why"
Why continuity matters more than convenience
An urgent care clinician meets you for the first time, treats the problem in front of them and sends you on. That is exactly right for a sprained ankle at 9pm. It is a weaker fit for fatigue, recurring infections or a blood pressure that has crept up — where the useful information is the pattern over time.
The practical middle ground: use urgent care when your clinic is closed, and tell your primary care doctor afterwards so it becomes part of your record.
If you are unsure, call us. It is often faster to ask than to guess, and same-day appointments and walk-ins are available at both our offices.
Book an appointment
Choose a time online with Dr. Vijay Katari, MD at our Frisco or McKinney office, or call (214) 884-2774.
This article is general health information, not medical advice, and it cannot account for your individual circumstances. Please discuss your own care with Dr. Vijay Katari, MD or your regular physician. In an emergency, call 911.
Reviewed August 2026 by Dr. Vijay Katari, MD.