San Francisco-based patient education tool BetterDoctor raised a $2.6 million seed round to expand its staff. Jeff Clavier from SoftTechVC and Dirk Lammerts from Burrill & Co led the round. Incubator 500 Startups also contributed.

Launched just over a year ago, BetterDoctor labels itself as a "matchmaking service" that connects every US doctor with patients. All doctors are pre-screened before they can be listed on the site. To prescreen the doctors, BetterDoctor analyzed their experience, education, medical licensing, board certification, judicial sanctions and professional and referral network. Once they are listed on the site, users can rate the doctors and write reviews.

At the time of its launch, the company raised $650,000. Since then, the company has increased its monthly users from 10,000 to close to 1 million. Doctors rated on the service range from dentists to primary physicians to chiropractors and within each category, BetterDoctor will categorize the listings into 60 different specialties. Doctors also have the option to update their information from a doctor-facing portal.

"We work hard on getting our data to be better," CEO and Co-Founder Ari Tulla told MobiHealthNews. "For us its really all about finding the right doctor for you."

To do that, Tulla says the company wants to form a bigger team and "get the right people on the service".

Many other companies also offer a physician ranking database. One similar company, Vitals.com raised $22 million this summer to improve its customer offerings and around the same time, another company, Doximity, opened its directory of 700,000 physicians to consumers.