As of July, 695 million Chinese had basic medical insurance, an increase of 5.7 percent compared to the previous year. However, medical insurance systems in provincial-level regions are still separated from each other.

To overcome this, Beijing, Tianjin and Hebei started to coordinate medical payment reimbursement and training medical professionals in 2014.

Beijing, as the nation's capital with hundreds of prestigious hospitals and thousands of top doctors, has helped Yanjiao, Zhangjiakou, Caofeidian and other cities in Hebei by dispatching experts for surgeries as well as helping to train doctors and nurses at local hospitals.

Yanjiao, a small town in Hebei's Langfang city, is adjacent to Beijing's Tongzhou district near the capital's new governmental seat. The town, just 30 kilometers from Tian'anmen Square, is home to about 300,000 people who work in Beijing, more than 40 percent of its total population.

A pilot program was conducted in the town in 2014 that allows people to choose two local hospitals and two in Beijing for medical-insurance reimbursement. Yang Kaiji, a 30-year-old IT engineer who lives in Yanjiao but works in Beijing, had little spare time during workdays for medical treatment in Beijing but came back to the town during weekends. Thus, he had to take medical receipts back to his company for reimbursement.

"Such a seemingly trivial but factually important procedure" was time consuming, he said. "Now I can get treated and reimbursed at the same hospital either in Yanjiao or Beijing," Yang said.

Moreover, the agreement also stipulates that Beijing and Hebei will have standard operations for human-resource services, with 2,152 human-resource agencies in these two regions able to provide unified services such as talent recruitment, training and archive management.

Medical and human-resource services are vital parts of regional integration, which will enhance residents' lives and make services like medical reimbursement easier, said Xiao Jincheng, a researcher at the Academy of Macroeconomic Research under the National Development and Reform Commission.

"By doing this, the goal of easing Beijing's traffic and environmental burdens will be achieved," Xiao added.