** Shares of medtech firm Zynex ZYXI.O fall 28% to $5.04
** Co reported late on Tuesday Q4 net revenue of $46 mln, missing analysts' estimates of $53.65 mln, according to data compiled by LSEG
** Says revenue shortfall was due to slower-than-normal payments from certain payers as well as a temporary suspension of payments from healthcare service provider Tricare
** Co says it is decreasing overall staff by about 15%, which would result in savings of about $35 mln annually
** Brokerage H.C. Wainwright believes the company has sufficient capital to fund operations for the coming year
** "The company continues to expand payor coverage, which could offset some of the near-term sales drop," brokerage adds
** Up to last close, ZYXI has fallen 44.8% in the past 12 months
(Reporting by Siddhi Mahatole)
((siddhi.mahatole@thomsonreuters.com))