San Mateo, California-based PokitDok, which offers a healthcare price comparison tool and API-based tools for healthcare developers, has raised $34 million, according to Dow Jones' VentureWire. This brings the company's total funding to at least $37 million.

PokitDok was founded by Lisa Maki and Ted Tanner in 2011. The company first offered a mobile app and online service that let users locate healthcare providers in their area, then do a price comparison of different quotes, but it has since expanded its offerings.

PokitDok now also provides developers with several other tools that support providers and payers. One such offering is an API that allows patients to search for providers from PokitDok's provider directory, which can be filtered by education, credentialing, and other business information. Another tool, an appointment booking API, helps consumers schedule an appointment with a healthcare provider, which will then be directly added to the provider's schedule.

The most recent funding round will be used, in part, to further develop these API tools, as well as to further sales and marketing efforts.

Earlier this year, PokitDok partnered with Evidation Health, a company launched by GE Ventures and Stanford Health Care to help Evidation identify eligible participants for clinical studies.

“The future of medicine is digital,” Maki said in a statement at the time. “We’ve shifted from a reliance on clinic visits to incorporating digital tools and services that can be accessed anywhere, at any time. While new digital health apps and wearables make virtual medicine possible -- measurable evidence that these tools work must be coupled with contextually relevant connections back to the doctor and economic data to the insurers to confirm patient outcomes as well as financial value.”

PokitDok previously raised a funding round in June 2013.