Background: In the treatment of favorable Hodgkin Lymphoma (HL), Level 1 evidence comparing combined modality therapy (CMT) with chemotherapy alone has persistently demonstrated that obviating radiation therapy (RT) worsens recurrence rates despite no significant overall survival difference. As there remains limited evidence on the granularity of the impact of insurance on HL treatment, this project disaggregates costs by insurance plans to enhance the transparency of out-of-pocket (OOP) cost estimations in Medicaid and/or Medicare-eligible (age 65+) patients. Methods: National Comprehensive Cancer Network guidelines were queried to assess the appropriate therapy for HL. Following initial adriamycin/bleomycin/vinblastine/dacarbazine (ABVD) chemotherapy x 2 cycles with Deauville 1-2 response on PET scan, CMT was defined as involved site RT (20 Gy / 10 fractions), while chemotherapy alone was defined as an additional ABVD x 2. Current Procedural Terminology and Healthcare Common Procedure Coding System codes identified treatments. OOP expenditures, deductibles, and copay/coinsurance were computed for Medicaid, Original Medicare, and Medigap Plan G plans via medicare.gov, medicaid.oh.gov, and cms.gov. Price estimates (from actual prices per insurance plan rather than claims data predictions) assume an Ohio hospital location (zip code = 44106) for all treatments. Total costs were calculated based on all treatments plus a 5-year follow-up (not adjusted for inflation). Treatment charges for chemotherapy alone include initial medical oncology office visit, cost of ABVD x 4, and infusion costs for 4 cycles. Additional treatment charges for CMT include initial radiation oncology consultation, treatment planning, dosimetry calculations, treatment device, simulation and verification, RT delivery, on-treatment visits, medical physics consultation, and annual TSH labs. Results: With Original Medicare plans, patients are faced with an OOP cost of 20% for Medicare Part B claims with no cost cap for approved procedures after the deductible. As such, patients are faced with a total 6-year charge of $1,928.95 for chemotherapy alone, and $2,385.28 for CMT. Under Medigap Plan G, patients encounter an OOP charge of $1,151.14 for chemotherapy alone and $1,176.34 for CMT. Medicaid beneficiaries (assuming all treatments are approved by Medicaid) face no OOP expenses for both treatment plans, as all expenses are covered without limit. Conclusions: By comparing OOP costs between Medicare and Medicaid plans, this model improves cost transparency in the treatment of favorable early-stage HL. Our findings indicate that omitting RT in favor of chemotherapy alone yields a cost savings of 2-24% at a 5-year follow-up. Further studies are required to assess whether these savings compensate for the inferior outcomes achieved by omitting RT in this patient population.