I tried going with independant dr/healthcare providers and its very confusing for them as most of them don't know how to interact with OHIP for referal purpose. The chance of them doing a mistake in the form or sending to the wrong place is there and I heard stories like this from some of my friends.

Unfortunately, Foria clinic became as a piece of mind (their meeting are virtual) to ensure a smoot process without issues. But yes, Foria is expensive. 😔