Style / design - look good. The pages do look a little barren because of all the white space. So, you could increase the font size a little.
Advertise with us You say "Please review our advertising rates below (with a link). Then you have another link below. Why have two links? Just incorporate both into one.
Images - The file sizes for some of your images is large for the size of the image. For example, on the cosmetic dentistry page, gyms page, and personal trainer`s page. (I didn`t check the images on every page). The images should be resized before you put them on the page rather than just shrinking (or setting a smaller width and height) but using the orgininal image.
Also, you should have an alt image tag for each image that is more desccriptive than the name of the image file (Gym-1.jpg).
Contact us - you might consider providing an online form in addition to just an email address. It is more user friendly because the viewer does not have to open their email program, they just complete the form on the page. Also, if the person is not on their own computer, they may not have access to yourown email.
HTMLcode: As already mentioned, the two <head></head> sections in the HTML of your web pages does need to be corrected.
A web page should only have one section of the html code defind with <head> </head>. Having more than one <head> section may affect how your site is seen by various browsers. Browsers expect to find certain information in the HEAD section. Simply stated with more than one <head>, you might confuse the bowser.
Your html code also specifies <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" You might want to consider changing that or correcting some of the validation problems.
What program was used to create the site? Was code copied and modified from another source?