The grades of 3 Health Care Providers & Services stocks are on the rise this week on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

This week, Amedisys, Inc.’s (AMED) ratings are up from a C last week to a B. Amedisys, Inc. provides home health care and hospice services in the United States. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of AMED stock.

This is a strong week for RadNet, Inc. (RDNT). The company’s rating climbs to B from the previous week’s C. RadNet, Inc. owns and operates outpatient diagnostic imaging centers. The company also gets A’s in operating margin growth, earnings revisions, earnings surprise, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of RDNT stock.

American Shared Hospital Services (AMS) improves from a C to a B rating this week. American Shared Hospital Services provides turnkey technology solutions for advanced radiosurgical and radiation therapy services to medical centers in the United States. The company also gets A’s in earnings momentum and free cash flow. For more information, get Portfolio Grader’s complete analysis of AMS 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.