Allergy & Immunology Fellowship Programs

The typical allergist-immunologist works in an outpatient clinic setting. The majority of patient encounters are scheduled office visits for ongoing management of chronic allergic conditions, immunotherapy administration and monitoring, and evaluation of new referrals. Hospital consultations — for anaphylaxis management, drug desensitization, or evaluation of suspected immunodeficiency in complex inpatients — are more common in academic practice but constitute a smaller proportion of clinical time than in most other specialties.

Practice patterns differ meaningfully between academic and private settings. Academic allergists maintain a balanced portfolio of clinical care, research, and teaching. Private practice allergists generally carry higher patient volumes with strong revenue from immunotherapy administration and biologic initiation and monitoring.

Call burden is low relative to most medical specialties. Outpatient allergy practices rarely carry hospital call obligations, and this contributes to the specialty's reputation for sustainable work-life balance — consistently cited in physician satisfaction surveys as a primary driver of career satisfaction.

Allergy and immunology offers competitive compensation relative to its training length and lifestyle profile. The median salary for employed allergist-immunologists in the United States was $314,000 in 2024, with a typical range of $220,000 to $500,000 or more depending on practice setting, geography, and volume.

Revenue drivers include patient volume, immunotherapy panel size, and the initiation and management of biologic therapies such as dupilumab, omalizumab, and mepolizumab. Geographic variation is significant: allergists in underserved suburban and rural markets typically outperform urban academic counterparts on total compensation. Compensation grew approximately 4.2% year-over-year from 2023 to 2024.

Entry into allergy and immunology fellowship requires completion of a three-year ACGME-accredited residency in either internal medicine or pediatrics. The specialty does not offer PGY-1 positions and cannot be entered directly from medical school. Candidates completing a combined internal medicine/pediatrics residency (four years) are also eligible and are highly competitive, as their training equips them to care for the specialty's broad patient population.

Fellowship training is two years in length and covers the full scope of adult and pediatric allergy and immunology. Core competencies include the diagnosis and management of asthma, allergic rhinitis, food and drug allergy, primary immunodeficiency, and urticaria/angioedema. Fellows gain supervised experience in skin testing, allergen immunotherapy initiation, pulmonary function interpretation, and oral food challenges. Research output — at minimum one project suitable for presentation or publication — is expected by most programs.

Applications are submitted through ERAS with a July program start date. The specialty coordinates through the AAAAI/ACAAI fellowship match rather than the standard NRMP Match — applicants should verify program-specific deadlines, which differ from the main residency match calendar.

Allergy and immunology fellowship is moderately competitive. In recent cycles approximately 90–95% of offered positions filled in the first round, with US graduates from internal medicine and pediatrics backgrounds making up the majority of successful applicants.

Research experience, strong letters of recommendation from allergist-immunologists, and dedicated clinical exposure to the specialty are the strongest differentiating factors. Competitive applicants typically present Step 1 scores above 230 and Step 2 CK scores above 245.

The workforce outlook for allergy and immunology is strongly positive. The AAAAI estimates a significant and growing shortage of practicing allergists, particularly in rural and suburban markets where access to specialist care is limited. Approximately 3,800 board-certified allergist-immunologists are currently active in the United States — a number that falls well short of population demand.

The training pipeline of approximately 150 new fellows per year is insufficient to offset retirements while meeting growing demand. Workforce analyses project the shortage will deepen through the 2030s, making this one of the more reliably undersupplied specialties for early-career physicians.

Allergy and immunology fellowship does not use the AAMC ERAS program signal system used in the main residency match. Most programs coordinate through the AAAAI/ACAAI fellowship match, where applicants apply directly without a formal signal allocation. Given the small number of positions — approximately 150 annually across 76 programs — most competitive applicants apply broadly to all or most available programs.

Program density is highest in the Northeast, Midwest, and California. Programs in the South, Mountain West, and Great Plains states tend to attract fewer applications and may offer stronger match prospects for well-qualified candidates. Early direct outreach to program directors and completion of a clinical elective or research rotation in an allergy/immunology division during residency are the most effective strategies for building program-level relationships in this small, collegial specialty community.

Physicians who thrive in allergy and immunology tend to share a few characteristics: intellectual curiosity about the immune system, patience for chronic disease management, and satisfaction in building long-term relationships with patients followed over years or decades. The specialty rewards clinicians who enjoy procedural work — skin testing, immunotherapy, oral challenges — without the demands of a primarily surgical career.

Those seeking predominantly acute or hospital-based practice may find the outpatient focus limiting; for others, it represents an ideal balance of intellectual depth, procedural variety, and lifestyle sustainability.