Allergy Shots Covered by Insurance: Plans That Pay $0 Per Visit

The four plans with $0 per-visit cost share for allergy shots are Kaiser HMO (in-network only, California/Colorado/Georgia/Hawaii/Mid-Atlantic/Northwest/Washington regions), Tricare Prime at Military Treatment Facilities per TPM15 Ch. 7 §14.1, Medicare Part B with a Medigap supplement that zeroes the 20% coinsurance, and most state Medicaid programs post-enrollment. Each has a trade-off: Kaiser requires closed-network care; Tricare requires active-duty or dependent status at an MTF; Medigap adds a monthly premium; Medicaid has antigen-prep exclusions in California (DHCS Allergy Manual Part 2) and managed-care caps in New York. Commercial PPO with met deductible and flat copay plans typically run $15–$40 per maintenance visit — not zero, but predictable.

Yes — Medicare Part B covers allergy shots under LCD L36240, which designates Cox et al. 2011 Practice Parameter Third Update as the operative US clinical guideline. The 2026 Part B deductible is $283 (up from $257 in 2025, CMS announcement November 14, 2025). After the deductible is met, patients owe 20% coinsurance on the Medicare allowed amount. For a typical maintenance visit with a 10-dose vial (CPT 95117 + 95165 x 10), the 2025 Medicare allowed amount is approximately $151.07 (95117 $11.97 + 95165 $13.91 x 10 = $139.10); patient owes roughly $30.21 in 20% coinsurance. A Medigap Plan G or N eliminates that 20% entirely, converting a $30/visit year into $0/visit after the Medigap monthly premium.

California Medi-Cal covers the allergy injection code (CPT 95117) at approximately $11.66 per visit — below Medicare's allowed amount of $11.97. However, per the DHCS Medi-Cal Allergy Manual Part 2 (Allergy Testing and Desensitization), CPT codes 95120 through 95134 and 95145 through 95165 are explicitly listed as non-benefits. These are the antigen-preparation codes used to bill for the allergen extract vials — the ingredients that make the shots work. Practices facing this restriction either absorb the antigen cost themselves, require patients to source antigen from elsewhere, or decline to see Medi-Cal SCIT patients. Patient cost share for the injection visit itself is $0, but the practice's economic situation affects whether they can accept Medi-Cal for the full SCIT service.

Texas Medicaid STAR managed care covers allergy injection codes (CPT 95115/95117) and vial-preparation code (95165), but the reimbursement rates are approximately 92% of Medicare allowable per TMHP Online Fee Lookup and TMPPM Vol. 1 §2 methodology. Applied to 2025 Medicare amounts, that translates to approximately $11.33 for CPT 95117 and $13.48 per dose for CPT 95165. Texas allergists frequently report that margins at these rates are too thin to sustain a Medicaid SCIT practice, and some practices decline Medicaid SCIT patients entirely as a result. Patient cost share is $0 under STAR Medicaid, but actual access depends on whether practices in your area accept Medicaid SCIT referrals.

HOPD stands for Hospital Outpatient Department. When a hospital acquires a freestanding allergy practice and reclassifies it under Medicare's Outpatient Prospective Payment System (OPPS), it gains the right to add a facility fee on top of the professional fee for every visit. The allowed and billed amounts are set under the OPPS facility fee schedule, which is separate from the Physician Fee Schedule that applies to freestanding clinics. The result is that the same 40-allergen skin test panel that a freestanding allergist bills at $142.40 Medicare-allowed can be billed at $24,400 at an HOPD (Kaitlin Johnson, M Health Fairview, Minneapolis, 2024, PBS NewsHour). Ask any new allergist's practice: 'Are you provider-based or classified as a hospital outpatient department?' before your first visit.

Yes — TRICARE Policy Manual TPM15 Chapter 7 §14.1 explicitly states: 'Services and supplies required in the diagnosis and treatment of allergies are covered.' For Tricare Prime enrollees receiving care at a Military Treatment Facility, the cost share is $0 per visit. Active-duty service members and their dependents enrolled in Tricare Prime at an on-base MTF pay nothing for allergy injections administered there. Tricare Select enrollees receiving care off-base through a Tricare-authorized provider pay a cost share ranging from minimal to moderate depending on whether the service is at a preferred network provider. The $0 scenario documented above applies specifically to Tricare Prime in-MTF — confirmed by Case 13, anchored to the TRICARE Policy Manual.

EmblemHealth (including HIP and ConnectiCare subsidiary plans managing New York Medicaid managed care) publishes a reimbursement policy for CPT 95165 (multi-dose vial preparation) that states the allowed units 'should not exceed 137 units per year' and '30 doses per day.' This is a Medicaid managed-care utilization management rule, not a clinical guideline — it reflects NY Medicaid's administrative cap rather than the CMS Article A57472 rule that allows up to 10 doses per 10-cc vial (max 30 units per day MUE). In practice, a patient on a standard 3-allergen protocol with two 10-dose vials every six months uses approximately 60–120 units per year, typically within the cap. Patients with complex multi-allergen protocols may hit the ceiling, requiring practices to request exceptions or space out vial preparation dates.