Health Informatics is a discipline of science, which deals with intersection of information science, computer science, medical informatics, health care informatics. It is applied to many areas of science like pharmacy, dentistry, public health. Open access journals are scholarly journals that are available online to the reader "without financial, legal, or technical barriers other than those inseparable from gaining access to the internet itself. Advantages and disadvantages of journals are the subjects of much discussion amongst scholars and publishers open-access journal publishing have ranged from moving with enthusiasm to a new open-access business model, to experiments with providing as much free or open access as possible, to active lobbying against open-access proposals. A few obvious advantages of health informatics open-access journals include the free access to scientific papers regardless of affiliation with a subscribing library, lower costs for research in academia and industry, in addition to improved access for the general public and higher citation rates for the author