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Allergy, Asthma & Immunology

Allergy, Asthma & Immunology Providers

Allison K. Shuster, PA-C.

Allison K. Shuster, PA-C

Physician Assistant
Carrie Caruthers, MD.

Carrie Caruthers, MD

Allergist / Immunologist
Gregory Owens, MD.

Gregory Owens, MD

Allergist / Immunologist

Jenika Ferretti-Gallon, MD

Allergist / Immunologist

Patricia Choi, MD

Allergist / Immunologist
Renganathan (Raj) Srinivasan, MD.

Renganathan (Raj) Srinivasan, MD

Allergist / Immunologist

Allergy, Asthma & Immunology Locations

Salmon Creek, WA Locations

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Salmon Creek 1 Clinic

2525 NE 139th Street
Vancouver, WA 98686


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Vancouver, WA Locations

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Columbia Tech Center Clinic

501 SE 172nd Ave
Vancouver, WA 98684


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Information about Allergy, Asthma & Immunology


Gain control over your allergies

Our three-person physician team is certified by the American Board of Allergy and Immunology and provides high-quality care for children and adults. As allergists, we listen closely to understand your health issues and goals. From there, we perform comprehensive evaluations and allergy testing, and work with you to develop a plan to manage and treat symptoms. Our recommendations are based on the latest clinical research and evidence—approaches that are proven to help.

We offer allergist appointments at two clinic locations: Salmon Creek and Columbia Tech Center. Our extended hours—8 a.m. to 6 p.m. on weekdays—make it easier to get the care you need, from follow-up appointments to regular allergy shots from our nurses.

Whether you or your family are suffering from allergies, asthma, skin concerns, or food sensitivities, we can work together with you to improve your quality of life.


We treat conditions including:

  • Allergic Rhinitis (hay fever)
  • Asthma
  • Bee sting allergy
  • Chronic cough
  • Drug allergy
  • Dyspnea (shortness of breath)
  • Eczema
  • Eosinophilia
  • Eosinophilic esophagitis
  • Food allergies
  • Immune deficiency
  • Urticaria (hives)

Diagnostics and treatment include:

  • Allergen immunotherapy (allergy shots for airborne allergy)
  • Aspirin desensitization
  • Contact allergy testing for metals, chemicals (patch testing results in one week)
  • Immunoglobulin replacement therapy (immune deficiency)
  • Office Spirometry for asthma
  • Penicillin allergy testing
  • Skin testing for airborne and food allergens (scratch testing results in 15 minutes)
  • Sublingual immunotherapy (allergy tablets placed under tongue for grass pollen)
  • Xolair injection therapy (chronic hives and asthma)
Pollen Counts

Get today’s pollen count

Get an accurate picture of what might be causing your sniffling and sneezing and take steps to prevent those symptoms. Our Salmon Creek office has an automated pollen counter installed on the roof that provides reasonable data for a 100+ mile radius. Download the PollenWise app and set your zip code to 98686 (Salmon Creek, WA) to get real-time pollen and mold counts.

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