Sound marketing practices based on the way your potential clients/patients think and act should be your number one priority. Give them exactly what they are looking for. Really take time to figure out what it is your target demographic wants & needs, then cater to this. Do not let your sales or motivations get in the way of delivering.
Top 4 things you should do to promote your website:
1. Blogging
2. Search Engine Optimization
3. Email Marketing
4. Social Networking