This week, the ratings of 10 Health Care Providers & Services stocks on Portfolio Grader are down. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

This is a rough week for Anthem, Inc. (ANTM). The company’s rating falls to D from the previous week’s C. For more information, get Portfolio Grader’s complete analysis of ANTM stock.

MEDNAX, Inc.’s (MD) rating weakens this week, dropping to a D versus last week’s C. MEDNAX, Inc. provides physician management services to hospital-based neonatal, maternal-fetal, pediatric cardiology, and pediatric intensive care specialties. For more information, get Portfolio Grader’s complete analysis of MD stock.

This week, Air Methods Corporation’s (AIRM) rating worsens to a D from the company’s C rating a week ago. Air Methods Corporation provides air medical emergency transport services and systems in the United States. For more information, get Portfolio Grader’s complete analysis of AIRM stock.

HealthSouth Corporation (HLS) is having a tough week. The company’s rating falls from a C to a D. HealthSouth Corporation provides inpatient rehabilitative healthcare services. For more information, get Portfolio Grader’s complete analysis of HLS stock.

Premier Inc. Class A (PINC) experiences a ratings drop this week, going from last week’s C to a D. For more information, get Portfolio Grader’s complete analysis of PINC stock.

This week, Envision Healthcare Holdings, Inc. (EVHC) drops from a D to a F rating. For more information, get Portfolio Grader’s complete analysis of EVHC stock.

Kindred Healthcare, Inc. (KND) earns a F this week, moving down from last week’s grade of D. Kindred Healthcare, Inc. is a national healthcare services company operating hospitals, nursing centers, institutional pharmacies and a contract rehabilitation services business. The company also gets F’s in earnings growth, earnings revisions, and free cash flow. For more information, get Portfolio Grader’s complete analysis of KND stock.

RadNet, Inc. (RDNT) gets weaker ratings this week as last week’s C drops to a D. RadNet, Inc. owns and operates outpatient diagnostic imaging centers. The company also gets F’s in earnings revisions, earnings surprise, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of RDNT stock.

Joint Corp (JYNT) declines this week from a D to a F. The company also gets F’s in earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of JYNT stock.

Slipping from a D to a F rating, Five Star Quality Care, Inc. (FVE) takes a hit this week. Five Star Quality Care, Inc. leases and operates senior living facilities. The company also gets F’s in earnings revisions and free cash flow. For more information, get Portfolio Grader’s complete analysis of FVE 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.