This week, five health care provider stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Magellan Health, Inc. (MGLN) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. Magellan Health Services coordinates and manages the delivery of behavioral healthcare treatment services. In Portfolio Grader’s specific subcategories of Earnings Surprise and Cash Flow, MGLN also gets A’s. For more information, get Portfolio Grader’s complete analysis of MGLN stock.

This week, RadNet, Inc. (RDNT) is showing good progress as the company’s rating jumps from a B (“buy”) last week to an A (“strong buy”). RadNet owns and operates outpatient diagnostic imaging centers. For more information, get Portfolio Grader’s complete analysis of RDNT stock.

Amedisys, Inc. (AMED) earns a B this week, jumping up from last week’s grade of C. Amedisys provides home health care and hospice services in the United States. For more information, get Portfolio Grader’s complete analysis of AMED stock.

Concord Medical Services Holding Ltd. ADR (CCM) is seeing ratings go up from a B last week to an A this week. Concord Medical Services operates a network of radiotherapy and diagnostic imaging centers in the People’’s Republic of China. For more information, get Portfolio Grader’s complete analysis of CCM stock.

Cardinal Health, Inc. (CAH) improves from a B to an A rating this week. Cardinal Health provides products and services related to the safety and productivity of healthcare. For more information, get Portfolio Grader’s complete analysis of CAH stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.