Dr. Thomas P. Harder is a rheumatologist in Wynnewood, Pennsylvania and is affiliated with multiple hospitals in the area, including Main Line Health Lankenau Medical Center and Main Line Health Bryn Mawr Hospital. He received his medical degree from Ohio State University College of Medicine and has been in practice for more than 20 years. Dr. Thomas P. Harder has expertise in treating arthritis, rheumatoid arthritis, among other conditions - see all areas of expertise. Dr. Thomas P. Harder accepts Medicare, Aetna, Humana, Cigna, Blue Cross, United Healthcare - see other insurance plans accepted. Dr. Thomas P. Harder is highly recommended by patients.