For whatever reason, if you don't feel your doctor is open to your needs and desires for menopausal health management, you have two choices. You can re-educate your doctor or you can find another one who suits you better. Many women have found that returning to a GP or family doc is all they need to do.
What kind of doctor do I need?
But there's no reason why you must go to a specialist. Hormone-prescribing and the necessary followup are certainly well within the capabilities of a willing family doc—but the crucial part of that is the "willing." To some extent, having one doctor manage all of your medical care does provide a greater continuity in making sure that the person who is prescribing your HRT is also aware of all of the other health-related things you're facing. Additionally, you may find that your family doctor is willing to be less dogmatic about a single "right" answer as some specialty clinics or practitioners are. So there's no correct answer here, other than finding someone who has enough interest to work with you.
Ways to find a new doctor
A number of websites offer lists of doctors. Everyone from the North American Menopause Society to Menopause Matters (UK) to the smallest personal website is making recommendations these days. Of course, you want to consider carefully the philosophical bias that drives each list provider and it's a good idea to check out any referrals with a your state licensing agency (don't be complacent: one of us was referred by a very reputable group to a great-sounding doc…who had just lost his practice privileges for something rather unsavory) as well as interviewing them before you actually spend money for a new-patient appointment.