Welcome to the dhm Agency. Diversified Health Management (DHM Agency) is a home health care agency that takes an integrated approach to healthcare. Services Our services include nursing, physical therapy, occupational therapy, speech therapy, social work, and home health aide assistance. For more detailed information on each of these categories, please refer to our website. Our office hours are listed as above, however established patients (or health care professionals that are involved within the circle of care) can reach us 24/7.