Our Clinical Services & Specializations

We provide comprehensive diagnostic testing and advanced therapeutic management for complex immune system disorders, catering to patients across the greater Seattle area.


Conditions We Treat

Dr. Welch frequently handles high-complexity cases, specializing deeply in dual-system conditions and severe allergic responses:

What to Expect: Our Patient Journey

To uncover the root cause of complex reactions, we follow a strict, evidence-based diagnostic protocol during your clinical visits:

  1. Initial comprehensive medical history and lifestyle timeline review.
  2. Targeted diagnostic testing (skin prick testing, patch testing, or specific lab work).
  3. Detailed analysis of dual-system triggers and environmental cross-reactivity.
  4. Creation of a customized, long-term immunotherapy or avoidance plan.