Hello, an ombudsman is a person who helps you navigate through a complex system like government benefits, insurance, long-term care, etc. Sometimes they are part of the state's "Office of Aging", "Senior Services" or similar agency. Or they may be contracted by that agency. Try to Google [Your state name] Senior Services and it will lead you to resources for your location.
Does this help? What kind of help do you need to find?
Sue