I would highly recommend Roderick Lane, who has a Naturopathic doctorate and a PHD in Natural Medicine. He has a practice in W1 (New Cavendish Road) and also practices in Jersey, Channel Islands.
He's going to be one of the experts I interview for this years PCOS (Polycystic Ovary Syndrome) Summit that I host and I could listen to his teachings on the Endocrine system all day long.
He's written and co-authored a couple of books on Women's and Hormonal Health and has another book on Menopause coming out soon. He's been voted 3 years in a row on Tatler Magazine as one of the UK's leading practitioners of modern medicine.
http://rodericklane.co.uk/about-me/ is his web site with contact details.
Jimi