In October 2006 he became Board Certified in Environmental Medicine and is one of only three physicians in Ohio to do so. He is also a fellow of The American Academy of Environmental Medicine.

During the past several decades there has been an alarming growth in increasingly complex chronic diseases. This increasing chronicity of illness and multiple organ involvement demonstrates a decrease in response rates to treatment. Environmental physicians believe that these treatment failures result from too much emphasis placed on the nature of disease and its symptomatic treatment, and not enough attention to the cause of the disease.

Environmental physicians look towards both external and internal stressors as the cause of disease to the human being. External stressors include: diet, multiple allergies (many we are unaware of), man made and natural occurring chemicals, infections, physical phenomena. Internal stressors include: genetic limitations, psychological stress, dysfunction of biological systems including thyroid, adrenal, sex hormones, and neurochemical imbalance.

Dr. Hemeyer will completely evaluate the patient and apply individualized and customized treatment. These treatments include: provocation and neutralization (a very precise style of allergy testing), diet instruction, measurement of neurochemical transmitters and targeted amino acid therapy, thorough endocrine system analysis with blood tests and/or 24 hour urine hormone testing from a nationally known laboratory (the same one used by the Mayo Clinic).

Some of the many diseases that respond to this style of treatment include: allergies and chemical sensitivities, asthma, autoimmune diseases, Bio-Identical hormone replacement, CFIDS, chronic gastrointestinal disorders, depression and anxiety, fibrocystic breast disease, FM, osteopenia and osteoporosis, PMS, thyroid disease.