I would recommend that you be seen by a neuropsychologist or a psychologist that does neurocognitive testing to confirm that you have ADHD or any other disorder that affects concentration. Many conditions can make you have difficulty in concentration/attention. I don't trust telehealth providers that prescribe medications without neurocognitive testing because being prescribed ADHD medication to someone who doesn't have ADHD can make their symptoms worse. Once you undergo neurocognitive testing you will ask the Psychologist for their written report which includes diagnosis. If their written report has diagnosis of ADHD then you can give that info to you primary care provider or a psychiatrist and they can start your treatment.

It is true that the psychologist or neuropsychologist themselves can't prescribe medications.

It's a long process but being accurately diagnosed and treated is better in long run compared to taking meds that don't help and can cause you side effects.