A professional medical related WordPress theme
Price: $35
This WordPress theme is aimed for doctors, dentists and health clinics or any other medical related websites.  Options include: 4 background uploaders, your choice of layouts, headers and much more.
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A customized fitness WP theme with lots of options
FitX WP Theme comes with a 12 pre-made skins with even an option to create your own. You can customize the colors, layout, fonts, and more in a few clicks using the FitX Options page. You can easily collect hot leads with the email opt-in widget, sell your own products or an affiliate’s, create a paid member’s area, train your clients online, or collect emails in exchange for access.
Price: $79
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You can get a 50% discount on this theme – but you have to act fast. There’s only
17 spots left, and they are going to be gone soon.  Use this coupon code when you checkout: 998D7

Health theme flexible to use with other niches
This WP Theme comes with multiple templates including Fullwidth Layout, Gallery Page, Contact Page and many other options, 7 alternative color styles, featured image slideshow, custom portfolio page template, theme option and more.
Price:
Nutrition Theme Standard $45
InkThemes Membership (Full Access) $125
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Link: Nutrition WP Theme

A premium health and medical theme design for health professionals

Medica is a health and medical WP business theme from ThemeFuse.  Great for health clinics, dentists and other health related sites, the theme features an online appointment booking module, numerous shortcodes, 2 featured sliders, custom typography, powerful theme admin options and more.

Price: 

Standard Package: $49
Developer Package: $79

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Link: Medica WordPress Theme

Medica is a premium theme for the self-hosted (.org) version of WordPress (read this). Premium themes typically include support and updates. Visit ThemeFuse for complete information and contact them if you have any questions.

Looking for more?  See some of the best, Health WordPress Themes

A health and medicine niche WP theme

Curo is a medicine oriented WP theme for health professionals who own their own practice.  Features include payment functionality (paypal),  search engine optimization settings, an easy way to add video and images, and there is also unlimited support and updates.

Price:

Theme: $79

Demo Page | Download Theme

Link: Curo WordPress Theme

Looking for more?  See some of the best, Business WordPress Themes