Casement Airport is a small general-aviation field serving Painesville, Ohio, not a commercial hub, so most travelers who need this page are private pilots, business visitors, or people meeting a charter flight rather than commercial passengers. Yes, travel insurance is still worth having for an international visitor flying in here, and the honest reason is cost rather than danger: American healthcare is high-quality but can be expensive for anyone without US-based coverage, even for a routine visit.
Painesville itself has local clinics for everyday needs, and Cleveland, a short drive to the west, offers broader hospital care for anything more serious. Confirm your policy covers treatment and transport to a larger facility near Cleveland rather than assuming a small-town clinic can handle a complex case, since referral to a bigger city is the normal pattern here for anything beyond routine treatment.
Most activity around Casement Airport is aviation-related - private flights, flight training, or general-aviation business - rather than tourism, so the practical insurance question for many visitors is whether a policy covers costs tied to a delayed or diverted flight, lost baggage from connecting commercial travel, or a medical issue arising during a business trip built around the airfield. Confirm your policy treats general-aviation travel the same as commercial travel for these purposes, since some do not.
Keep any clinic invoices, prescription receipts, and airport or FBO documentation for delays, since US providers generally issue detailed paperwork on request. Check whether your policy pays hospitals directly or requires you to pay upfront and claim afterward, since the latter can mean a substantial bill before reimbursement, and confirm the claims process in your policy wording before you rely on it during a US visit centered on this airfield. It is also worth confirming that your policy treats a small general-aviation field the same as any other US point of entry for medical purposes, since some wording is written with commercial airports specifically in mind and can read ambiguously for a field like this one.