Quote: its treatments, and the professionals who provide the them
Just remove the incorrect 'the' and the wording is fine, and not at all ambiguous. 'Them' clearly refers to 'its treatments'.
its treatments, and the professionals who provide them.
You are correct to wish to avoid excessive repetition, and in this case, are justified.
My photographs, and the people who appear in them.
Its wheels, and the tyres on them. ("tires" is US spelling)
Your parents, and the gifts for them.