An internist in Santa Rosa, CA, Dr. William Costello is skilled at diagnosing & treating a large array of ailments & disorders in adults.
Yes, Dr. William K. Costello is accepting new patients at this office.
401 Bicentennial Way, Santa Rosa, CA 95403
Dr. Costello has one office in California where he specializes in Internal Medicine.
The specialty of internal medicine is an area of primary care for adults. Dr. Costello specializes in diagnosing and treating cross-system illnesses that may affect multiple organ systems. When necessary, Dr. Costello also can refer patients to specialists. For example, patients with serious gastrointestinal issues may be referred to a gastroenterologist for additional diagnostic tests or treatment options.