Jason B Sigmon, MD, FAAOA in Oklahoma City: Board-Certified Allergy and Immunology Care with Extended Hours

Jason B Sigmon, MD, FAAOA is a board-certified allergist and immunologist serving Oklahoma City patients from a private practice setting, with extended evening availability that distinguishes him from many regional competitors.

What Sigmon's Practice Actually Is

Sigmon holds board certification through the American Academy of Otolaryngic Allergy (FAAOA) and is qualified to diagnose and treat allergic conditions affecting the respiratory system, sinuses, and related structures. His practice operates as an independent allergist office rather than as part of a hospital system or large medical group, allowing same-day or next-day scheduling for many appointment requests. The practice handles both seasonal and environmental allergies, food allergy assessment, and immunotherapy planning. Sigmon's dual focus on otolaryngic allergy (ear, nose, and throat allergies) makes him particularly suited to patients whose allergies compound sinus or upper airway issues.

Services and Typical Appointment Costs

Sigmon's practice performs allergy testing using both skin-prick and intradermal methods to identify specific environmental and food allergens. The cost of initial allergy testing typically ranges from $150 to $300 depending on the number of allergens tested and whether blood work is required; verify current pricing by calling the office directly, as insurance coverage varies widely. Follow-up appointments for immunotherapy counseling or prescription allergy medication management generally run $75 to $150 per visit.

Immunotherapy (allergy shots or sublingual tablets) is offered for patients with moderate to severe allergies who meet candidacy criteria. This treatment modality typically requires initial buildup visits over three to six months, followed by maintenance appointments every four weeks. Some patients transition to subcutaneous immunotherapy (SCIT, or allergy injections), which requires a different cost and schedule than sublingual options.

The practice accepts most major insurance plans, including Blue Cross Blue Shield of Oklahoma, Cigna, and United Healthcare. Uninsured patients should confirm whether the office offers cash-pay rates, as this is not standardized across Oklahoma City allergists.

How Sigmon Compares to Other Oklahoma City Allergists

Oklahoma City's allergist landscape includes both hospital-affiliated practices and independent providers. OU Health Allergy & Immunology operates at multiple locations around the metro area and offers integration with emergency care if anaphylaxis or severe reactions occur; however, appointment lead times often extend to four to six weeks. Mercy Health also maintains an allergy clinic downtown, with similar scheduling constraints.

Sigmon's independent practice typically schedules new patients within one to two weeks and offers evening appointments after 5 p.m. on multiple days per week—a significant convenience advantage for working adults and parents. The trade-off is that hospital-affiliated practices provide same-day referral to immunology specialists or emergency services if a patient has a severe reaction during testing, whereas Sigmon's office, as a private practice, requires transfer to an urgent care or emergency department for medical complications.

Choose Sigmon if you prioritize quick access, extended hours, and personalized one-on-one care from an established allergist. Choose a hospital-based practice if you have severe or complex allergies requiring coordination with hospital immunology departments, or if you need after-hours urgent allergy care available within the same system.

Who Suits This Practice and Who Does Not

Sigmon's practice suits Oklahoma City residents with mild to moderate environmental allergies, occupational allergies, or suspected food sensitivities who want expedited diagnosis and treatment planning. Patients already on allergy medications seeking optimization or a second opinion also fit this practice well.

The practice is less suited for patients with severe immunologic disorders (such as primary immunodeficiency), those requiring ongoing immunoglobulin infusions, or those with complex multi-system allergic disease requiring coordination across multiple specialists. Patients without insurance should confirm that the practice will accept self-pay patients before booking.

What the First Visit Involves

A new-patient appointment with Sigmon typically begins with a detailed allergy history covering seasonal patterns, triggers, medication responses, and family allergic history. The allergist then performs focused physical examination of the nasal passages, sinuses, and throat. If allergy testing is warranted, skin-prick testing is performed on the forearm using a panel of 10 to 60 allergen extracts (depending on symptoms and history); results appear within 15 to 20 minutes.

If testing is positive, Sigmon reviews results and discusses options: topical nasal or oral medications, environmental control measures, or immunotherapy for more severe cases. The appointment typically lasts 45 to 75 minutes. Bring a complete list of current medications and any previous allergy testing results if available.

Hours, Parking, and Logistics

Sigmon's practice is located at a private practice office in the Oklahoma City metro; call the office or check the website for the current street address and to confirm existing parking. Hours typically run 8 a.m. to 5 p.m. Monday through Friday, with select evening appointments until 6 or 7 p.m. on Tuesdays and Thursdays—verify current hours before booking, as medical office schedules shift seasonally.

The practice does not take walk-ins; all visits are by appointment. Allow 15 minutes for parking and check-in before your scheduled time.

Why Sigmon Holds a Spot in Oklahoma City's Health Network

Sigmon's board certification in otolaryngic allergy and his track record of rapid patient access address a common gap in Oklahoma City's allergist availability: most practices have weeks-long waits, and few emphasize evening scheduling for working professionals. For residents whose allergies affect nasal and sinus function specifically, his expertise in this overlap between allergy and otolaryngology adds practical value.