It's different in the US, these guys are docsWas that Dr Rashid Buttar?
He's all over the internet, he's an osteopathic physician, so is qualified in the manipulation of muscle tissue and bones, not a virologist nor any other expert in infectious diseases.
He's using his title of 'doctor' to suck people into the nonsense he is spreading about Covid-19, because he's also a conspiracy theorist & anti-vaxer, from the David Icke school of loons.
From Doctor of Osteopathic Medicine - Wikipedia
"Doctor of Osteopathic Medicine (DO or D.O.) is a professional doctoral degree for physicians and surgeons offered by medical schools in the United States. A DO graduate may become licensed as an osteopathic physician, having equivalent rights, privileges, and responsibilities as a physician who has earned the Doctor of Medicine (MD) degree.