Dr. Stephen Fritz is pleased to welcome patients to his new clinics in Gresham and Happy Valley!

- Portland Allergy & Asthma Clinic -

  • Allergy Relief

     Portland Allergy & Asthma is able to alleviate the symptoms or modify the disease course of nearly any type of allergy utilizing cutting edge techniques and medicines, some of which were studied by our own company, Portland... 

  • Asthma Relief

    An asthma attack can be a frightening and sometimes life-threatening occurrence, but with the right treatment plan, patients can manage their asthma and lead a normal lifestyle. Your physician will work with you individually to develop...

  • Desensitization

    Portland Allergy and Asthma  is one of three allergy clinics in Oregon able to provide food desensitization. Dr. Fritz has conducted research studies in OIT and was published in “The New England Journal of Medicine” for his...

  • Research

    Interested in having access to the latest in Allergy and Asthma care? Sign up for a clinical trial!

    • Compensation for time and travel if you qualify.

    • Free doctor visits  (no insurance required.

    • Free investigational medicines.

COVID Notice

We are committed to staying OPEN during this time so our patients can get the help they need. Everyone entering the office is required to wear a mask. Our healthcare staff wears personal protective equipment as recommended by the CDC during patient exams.  We also want to reassure you that we are taking all precautions to prevent transmission of viral illnesses, including Covid-19.  Our exam rooms and instruments are sanitized between each visit and our waiting rooms are sanitized regularly throughout the day. Telemedicine visits are available.


Happy Valley Clinic

9200 SE 91st Avenue Suite #220  

Happy Valley OR 97086

Open Mon., Tues., and Thur. 8:30-5:30 pm

Closed 12:30-1:30 pm

Tel: (971) 358-5600

Fax: (971) 358-5601


Gresham Clinic

831 NW Council Dr. Ste. B212 

Gresham OR 97030 US

Open Wed. and Fri. 8:30-5:30 pm

Closed 12:30-1:30 pm

Tel: (971) 358-5800

Fax: (971) 358-5801


Portland Research 

9200 SE 91st Avenue Suite #310 

Happy Valley OR 97086 US

Open Mon., Tues., and Thur. 8:30-5:30 pm

Tel: (971) 358-5700

Fax: (971) 358-5701

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