Alternatively your medical doctor may be able to make a recommendation or referral. Preferably choose a practitioner who has been practising for some time - perhaps you have seen his or her advertisements over a long period of time. There are therapists who have pages on this website or have links to their homepage. Decide whether you would prefer to see a male or female therapist. When you ring, make a note of how quickly the phone is answered and the professional manner in which it is answered or the call returned.
Many therapists make use of an answerphone in order to avoid having to charge for a receptionist.
Accept that the therapist will not want or be able to make a proper assessment on the phone as to number of sessions, total cost, etc. If you are anxious, ask if you can take a friend along for the initial consultation. The first requirements in a therapist are competence and adequate professional training. Almost as important are the therapist's personality and character. You must trust and feel comfortable with a therapist with whom you may well discuss personal and sensitive areas of your life.