This week, the overall grades of 14 Health Care Providers & Services stocks are lower, according to the Portfolio Grader database. Each of these rates a “D” (“sell”) or “F” overall (“strong sell”).

Henry Schein, Inc. (HSIC) earns a D this week, moving down from last week’s grade of C. Henry Schein, Inc. distributes healthcare products and services, including practice management software, to office-based healthcare practitioners. For more information, get Portfolio Grader’s complete analysis of HSIC stock.

Cigna Corporation (CI) experiences a ratings drop this week, going from last week’s C to a D. Cigna Corporation provides health care and related benefits, such as life and accident insurance, health care products, and workers’ compensation case management. For more information, get Portfolio Grader’s complete analysis of CI stock.

Laboratory Corporation of America Holdings (LH) is having a tough week. The company’s rating falls from a C to a D. Laboratory Corporation of America Holdings is a clinical laboratory company that offers clinical laboratory tests used by the medical profession in routine testing, patient diagnosis, and in the monitoring and treatment of disease. For more information, get Portfolio Grader’s complete analysis of LH stock.

This week, AmerisourceBergen Corporation (ABC) drops from a D to a F rating. AmerisourceBergen Corporation is a pharmaceutical services company that offers drug distribution and related services to healthcare providers and pharmaceutical manufacturers. The company also gets F’s in earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of ABC stock.

LifePoint Health, Inc. (LPNT) gets weaker ratings this week as last week’s D drops to a F. LifePoint Health, Inc. operates acute care hospitals that provide a range of medical and surgical services, including general surgery, internal medicine, obstetrics, emergency room care, oncology and rehabilitation services. The company also gets F’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of LPNT stock.

LHC Group, Inc. (LHCG) declines this week from a C to a D. LHC Group, Inc. provides post-acute healthcare services primarily to Medicare beneficiaries in rural markets in the southern United States. For more information, get Portfolio Grader’s complete analysis of LHCG stock.

Almost Family, Inc.’s (AFAM) rating weakens this week, dropping to a D versus last week’s C. Almost Family, Inc. is a regionally focused provider of home health services with locations around the United States. For more information, get Portfolio Grader’s complete analysis of AFAM stock.

Slipping from a D to a F rating, Providence Service Corporation (PRSC) takes a hit this week. Providence Service Corporation provides and manages government sponsored social services and non-emergency transportation services. The company also gets F’s in operating margin growth and earnings surprise. For more information, get Portfolio Grader’s complete analysis of PRSC stock.

This week, iKang Healthcare Group, Inc. Sponsored ADR Class A’s (KANG) rating worsens to a D from the company’s C rating a week ago. The company also gets F’s in operating margin growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of KANG stock.

This is a rough week for Surgery Partners, Inc. (SGRY). The company’s rating falls to D from the previous week’s C. The company also gets F’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of SGRY stock.

Select Medical Holdings Corporation (SEM) slips from a C to a D this week. Select Medical Holdings Corporation is an operator of specialty hospitals and outpatient rehabilitation clinics. The company also gets F’s in earnings growth and earnings revisions. For more information, get Portfolio Grader’s complete analysis of SEM stock.

Slipping from a D to a F rating, Adeptus Health, Inc. Class A (ADPT) takes a hit this week. The company also gets F’s in earnings growth, earnings surprise, and return on equity. For more information, get Portfolio Grader’s complete analysis of ADPT stock.

RadNet, Inc. (RDNT) is having a tough week. The company’s rating falls from a C to a D. RadNet, Inc. owns and operates outpatient diagnostic imaging centers. The company also gets F’s in operating margin growth, earnings growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of RDNT stock.

Genesis Healthcare Inc Class A’s (GEN) rating weakens this week, dropping to a D versus last week’s C. Genesis Healthcare Inc Class A is an independent power producer that generates and wholesales electricity. The company also gets F’s in earnings surprise and free cash flow. For more information, get Portfolio Grader’s complete analysis of GEN 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.