I would like to express my sincere and heartfelt thanks for the wonderful and professional treatment received therein. Learn how to write an employee appreciation letter with these templates and examples.Download the template for free (PDF or Word). Thank you for being on the front lines of care. Thank you for your kindness, dedication and healing touch. "I want to express my heartfelt appreciation for the care and support you have provided. Your commitment to your patients is truly admirable. Guidelines for writing appreciation letters: State what you appreciate and briefly explain why. I wanted to thank you for all of your hard work and dedication to your job, and specifically for the excellent care you provided for. Thank you for your outstanding care and support during my stay at the hospital.