Allergy Testing in Primary Care

Allergy Testing in Primary Care: Start Here

Primary care practices face pressure from declining reimbursement rates, rising operational costs, and consequently thinning profit margins. Staffing issues only compound these problems, while patient retention issues rise, and primary care physician compensation lags behind specialists. Driven by this challenging context many primary care clinics explore addition of practical service lines to address common patient needs while preserving workflow efficiency, protecting cash flow, and boosting the bottom line. 

Allergy testing and treatment meets all these requirements. The service aligns well with family medicine, pediatrics, and internal medicine practices to improve patient outcomes, support care continuity, and strengthen the practices financial sustainability. However, implementing an allergy program is not like buying tongue depressors. The practice will benefit most from a comprehensive program that includes training and expert immunology consults on demand while avoiding long term contracts, and not requiring capital expenditure. 

The value of an allergy program in primary care is that the right diagnostic tools, used in the right clinical and operational framework, empower clinics to directly evaluate an extremely common chronic condition in-house, improving the speed of decision-making and creating a more integrated patient experience while contributing substantially to the clinics financial success.  

This page answers a central question. Does allergy testing belong in primary care? Why do so few practices offer it today?  

Why Allergy Testing Is Already a Primary Care Issue 

From a medical standpoint, allergy testing belongs in primary care for the simple reason that staggering numbers of patients have allergies but don’t know it, which precludes those patients from seeking specialty care. From a practical business standpoint, allergy belongs in primary care because it’s an easy, save and lucrative service line that serves this enormous, unmet medical need.  

The Prevalence of Allergies 

The CDC National Center for Health Statistics published key findings in 2023 and then refreshed and confirmed again in January 2026 that nearly one third of adults in the US had a seasonal allergy, eczema, or food allergy.,  More than 30%! When the myriad allergic symptoms other than the obvious rashes, sneezing, itchy eyes and the like are considered, that percentage surges even higher. The World Allergy Organization pegs it at approaching half: “sensitization rates to one or more common allergens among school children are currently approaching 40%- 50%.” WAO White Book on Allergy, section 5. And yet, exceedingly few primary care practices service this crying need. 

The Allergic Knowledge Gap 

It’s counterintuitive, but the vast majority of allergy testing results from general surveillance, similar to blood pressure checks on every visit, rather than from provider observation or patient complaints. That is, most patients who should be tested don’t know it, and without checking, neither will the provider. The need is usually detected by a symptom survey taken upon patient initial intake and annually thereafter. Of course there are plenty of patients who request allergy testing or treatment because of seasonal, pet, or food issues, just as there are many providers who associate given symptom clusters with potential allergies, but most testing doesn’t originate in those situations. Perhaps the greatest benefit of allergy testing in primary care is that the clinic serves both: those with obvious allergies, and those without. For a closer look at how routine screening becomes point-of-care allergy testing in primary care, see the practical workflow here.

The paradoxical prevalence of unknown allergy matters greatly because primary care already serves as the front line for patient assessment, triage, longitudinal monitoring, and treatment planning. Because a practice is already managing the patient relationship, and is already responsible for care coordination, it is reasonable to ask why such a dire diagnostic gap should persist. 

Why So Few Primary Care Practices Offer Allergy Today 

Low availability of allergy testing and treatment in the primary care setting reflects knowledge gaps and supplier issues rather than poor clinical fit. That is, primary care providers typically don’t offer treatment only because they don’t offer testing first, and the two biggest reasons don’t offer testing are unfamiliarity, and poor options in the past. 

The Familiarity Gap: Safe Enough for Infants 

Most pediatricians or family doctors don’t tend to think about allergy testing because they have only quite limited exposure to immunology after medical school. As a result, they tend to think of allergy as a specialty destination once the issue is identified. Relatedly, providers remember safety concerns around allergic reactions—sudden anaphylaxis e.g.—long after context around such concerns has faded. More bluntly, physicians sometimes avoid allergy out of unwarranted concern arising from unconscious assumptions. In contrast, with full context the American Academy of Allergy, Asthma and Immunology confirms that “Percutaneous tests appear to be safe and can easily be completed on infants when necessary.”  Skin testing is safe with basic, reasonable precautions. 

Two Unworkable Options: The Bad Old Days 

Primary care providers who tried allergy as a service line in the past often ceased for simple lack of support. In years past, testing programs existed only on opposite ends of a spectrum, with neither option being workable and effective.  

Tongue Depressors: One extreme treats allergy solutions as simple commodity purchases with minimal support, like buying tongue depressors or strep tests. Allergy testing is easy, but it does take at least a little bit of training even if without complicating factors. If there are questions, moreover, the clinic needs access to expert advice. So the commodity model only works in specialty allergist practices, not primary care.  

Clinic Invasion: The other extreme, which arises from the extremely lucrative nature of allergy testing, involves third-party presence in the primary care clinic, requiring  dedicated space, typically long-term contracts, and sacrifice of significant operational control including personnel choice. This in-sourcing model, from suppliers like United Allergy, often come with long term contractual commitments, always place their technicians inside your clinic who at least initially are unfamiliar with your flow and culture, may or may not be up to your standards, and introduce additional scheduling complexities. None of that overburden is necessary for an allergy program, and for many practices, it is undesirable. 

As a result of these misconceptions, primary care practices often refer patients out for allergy testing. That referral model is a disservice to the patient if for no other reason than patients who aren’t tested aren’t referred and therefore go on suffering needlessly. It’s also a disservice to the practice. 

What Referral-Only Models Really Cost a Practice 

With respect to allergy, referral as the default response creates unfavorable clinical and business tradeoffs. First, as a practical matter only those with suspected allergies get referred to an allergist, which denies care to the greater number of patients whose allergies have gone undetected and unsuspected. Pro-active screening by simple questionnaire in the primary setting remains the most common origin of allergy testing, regardless of who performs the test, but if a clinic doesn’t offer testing, that screening almost never happens. 

Next, referral weakens continuity of care. The primary care practice maintains overall patient responsibility while losing direct visibility into the diagnostic and treatment journey. It also weakens immediacy of care, damaging patient experience. At last count, there seem to be at most about 5,000 practicing allergists in the United States, by some counts only 3,000. Consequently, referral to an allergist, if the patient follows through at all, can delay testing by that, involvement of a separate provider team fragments the patient’s treatment overall, often obscuring visibility into how immune response may feed into issues with other bodily systems, and vice versa. It is better for both the practice and the patient to foster a more integrated experience. For a direct comparison of those tradeoffs, see in-clinic allergy testing vs lab referral.

As to business, a referral-only model for allergy not only transfers value away from your own practice in the obvious way—the allergist handles large, lucrative aspects of those patients’ care—but also in other, subtler ways. Every referral away from the primary clinic erodes that primary status that much more, contributing to a drop of some 25% in primary care visits. Point-of-care allergy testing keeps patients’ needs primary, which is good for them and their providers.  

What Primary Care Actually Needs From an Allergy Program 

Taking safety as a given, allergy testing succeeds in primary care when the program remains practical, affordable, flexible, and built around existing staff and workflow. The program succeeds that has the needed support, without becoming an operational burden. Neither unsupported commodity dumps nor dominating third-party models meet these criteria. 

MRS Allergy delivers a program that fits easily into operational rhythm and cash flow. The program serves non-allergist primary care clinics by offering CLIA-free, point-of-care testing, 2-3 hours of tele-conference training as often as needed to keep up with personnel shifts, and expert consults with a Board-Certified Immunologist on demand, all included with the price of materials and without long term contracts. A test takes comfortably less than half an hour and can be performed by a Medical Assistant (MA). The program uses the clinic’s own staff, fits ordinary workflow, and requires no capital investment. Every dime the clinic spends on the program pays for reimbursable tests and treatments. 

Next Steps 

Allergy testing and treatment belong in primary care. Primary care clinics seeing the patients most often and most regularly, and over the longest timeframe, and are uniquely positioned to identify patients who need testing, usually identifying them by a simple questionnaire rather than by clinical observation or response to patient requests. Primary care benefits patients medically because referral (the alternative) only happens when potential allergy has already been identified by observation or request, most allergic patients will go unnoticed and untested. Further, addressing allergic disease internally reduces care fragmentation and improves coordination. Primary care benefits financially because it just so happens that pro-active screening by questionnaire rather than by reactive observations by a provider, is what justifies testing for of one of the most common chronic conditions there is, and that test has one of the highest cost-to-reimbursement ratios on the CPT schedule. 

This approach resonates with many practices. The next step involves exploring how point-of-care testing operates in a typical clinic. Review these focused resources to move forward: