NILES, Ohio - Parkman Medical Group is celebrating five decades of service in the Mahoning Valley. 

Dr. Yogesh Sheth has been practicing medicine in Niles since 1975, when he opened Parkman Medical Group. Years later, his son Dr. Sanjay Seth and his wife, Dr. Ramona Sheth took over the practice, where all three continue to practice medicine. 

Dr. Sheth and Associates provide preventative care services and complex medical care management along with urgent and acute care services through both Trumbull Memorial Hospital and St. Joseph's Hospital. 

Dr. Sanjay Sheth says that the key to keeping the practice open for the last 50 years is a good work ethic. 

"We're always open, my father would come in on Saturday's and work, we've been taking care of families and generations, some of his patients, we're now taking care of their kids and grandkids now," said Dr. Sheth. 

The medical group celebrated the anniversary with a ribbon cutting Wednesday afternoon, and showed off renovations made to office that allows them to accept more patients. 

They also opened a lab service, so that the general public could check come to the office and check labs.