"The growth is very fast pace," Martin said.
Each clinic starts out with 15 to 20 staff members and physicians. The size of the staff grows as the clinic builds its customer base.
"We always start out with a doctor and then we'll start layering in advanced practitioners," Martin said, "first nurse practitioners and then physicians assistants as needed."
Martin said the company researches an area's existing medical services before deciding to build a new site.
"We look more at how condensed an area is in regards to population and the access to existing medical care," she said.
But she said the company is not trying to replace that existing care, only supplement it. MedExpress doctors like to network with area hospitals and medical practices to give patients referrals for more specialized care.
"We work well with the local physicians and the specialists," Martin said. "We encourage people to have that primary care doctor, we just want to be that fill-in for them for when they have a need."
She said the company also likes to have a good relationship with local area emergency rooms. It's there to help care for lower-risk and more common medical problems so that emergency rooms can devote resources to serious cases that arrive on a moment's notice.
While the company has grown substantially in the last five years, Martin said the rate of growth is likely to continue in the near future.
"There will be more growth in West Virginia and Pennsylvania and the other states we're already in," she said. "We're always looking for good places to provide quality, convenient medical care."
Contact writer Jared Hunt at busin...@dailymail.com or 304-348-4836.