United Allergy Services works with providers to offer allergy sufferers long-term relief through a safe, effective, home-based treatment. We’re headquartered in San Antonio, Texas. Since being founded in 2009, we’ve grown to almost 500 employees and work with more than 2,500 practitioners across 20 states.

During that time, we’ve conducted more than 550,000 allergy tests and served over 325,000 patients with over 35 million immunotherapy treatments administered — 83% of those being done in the patient’s home.


The UAS Immunotherapy model has shown:

  • 95% of patients had improved allergic rhinitis scores
  • 82% of patients reported diminished use of medications
  • 88% of patients reported improved Rhinoconjunctivitis Quality of Life Questionnaire scores after IT
  • 86% would recommend allergy testing and immunotherapy to friends and family
  • 82% feel comfortable administering immunotherapy injections
  • 85% of people treated with IT for hay fever may achieve symptom relief within the first year of starting immunotherapy
  • After 3-5 years of complete IT treatment, most patients experience little or no allergy symptoms


Our providers say:

  • 90% would recommend United Allergy Services to colleagues
  • 100% believed the CAT/CAS in their practice was knowledgeable about allergy testing and immunotherapy
  • 99% believed the CAT/CAS in their practice interacted well with patients and with clinic personnel
  • 98% believed allergy testing and immunotherapy services are an integral part of patient services

Our protocols have been developed and are continuously evaluated by our Chief Medical Officer Frederick M. Schaffer, M.D., a board-certified allergist. They are also overseen and evaluated by the United Allergy Services Medical & Scientific Advisory Board, which is comprised of three board-certified allergists and three academic doctors from the largest antigen suppliers in the country, Stallergenes Greer and Jubilant HollisterStier who serve as scientific advisors.

  • understand customer expectations and go out of our way to meet them;
  • treat people as we would like to be treated;
  • have self-respect from knowing we have put forth our best efforts.
  • do what we say we are going to do;
  • do the right thing, even when no one is looking;
  • deliver our best in all we do;
  • accept responsibility for our actions.
  • are precise, consistent and accurate in all we do;
  • adhere to all Clinical Standard Operating Procedures.
  • value continuous learning;
  • display adaptability and embrace change;
  • are the allergy experts our partner physicians and patients depend on.
  • work together to consistently drive results and meet our goals;
  • believe succeeding as an enterprise is more important than succeeding individually;
  • are open to hear other’s feedback, strive to continuously improve.
 Positive EnergyWe…
  • embrace challenges and work to overcome them.
  • make an impact.
  • are energized by our mission.
  • choose a positive attitude.
  • celebrate success, recognize and reward the achievements of individuals and teams.

Revolutionize allergy care in America. We are improving access to millions of allergy sufferers that would not receive advanced allergy care without United Allergy Services.

Are you looking for a career that will allow you to truly make an impact in people’s lives? If so, United Allergy Services is the place for you!


Our employees receive a number of benefits, including: medical, dental, and vision insurance; generous paid time off, and a 401(k) retirement plan. The opportunity to participate in a young organization that is rapidly growing and touts open communication with executives, as well as the opportunity to do interesting and beneficial work, also are great benefits.

  • Opportunity for rapid growth within a young organization
  • Opportunity for interesting work
  • Flat organization with open communication with executives
  • Excellent benefits (Medical, Dental, Vision and 401k)
  • Generous PTO instead of vacation and sick days
  • EAP and company wellness program
  • Incentive/bonus programs
  • Generous HSA/HRA contributions

Read more about our career opportunities by clicking here.

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