Dr. Nathan Hartman, DDS Dr. Vasquez, DDS2690 Gravois Rd.
High Ridge, MO 63049

Your High Ridge Dentist

The Timber Ridge Dentistry team is a group of dedicated dental professionals who love that coming to work each day means helping people smile. We strive to create rewarding experiences for all of our patients from the moment you enter the door.

We are dedicated to:

  • Providing exceptional dental care
  • Educating patients about optimal dental health
  • Participating in continuing education to stay up-to-date with industry topics
  • Creating a clean, safe, and friendly space for patients to maintain, restore, and enhance their smiles
Dr. Hartman

Meet Dr. Nathan Hartman

Dr. Nathan Hartman is a Missouri native and grew up in Hermann, MO where he still owns and operates an active dental practice. He earned his undergraduate degree from the University of Missouri, and he still enjoys taking in a Tigers football game when he can. He then attended the University of Missouri-Kansas City School of Dentistry and graduated with his Doctor of Dental Surgery degree in 2008.

Every year, Dr. Hartman spends countless hours attending ongoing dental education courses. This allow him to remain on the leading edge of the latest dental technologies and techniques, and to provide his patients with the highest quality care possible. Professionally, he is passionate about bringing advanced dental technology and treatment to more rural and underserved areas. Dr. Hartman is an active member of many dental organizations, including the:

  • American Dental Association
  • Missouri Dental Association
  • Advanced Education in General Dentistry
  • Greater St. Louis Dental Society
  • Dawson Academy
  • Spear Educational Institute

Dr. Hartman resides in Lake St. Louis with his wife, Alana, and their five children. When he’s not in the office, he enjoys spending time outdoors and loves to fly fish.

Plan Your Visit
Dr. Vasquez

Dr. Diane Vasquez

Dr. Diane Vasquez received her Bachelors of Science in Biology degree from University of California, Los Angeles and continued her education at UCLA where she received her Doctor of Dental Surgery degree. She then completed her Advanced Education General Dentistry residency in Hawaii through the NYU Lutheran Dental Medicine program and is currently a member of the American Dental Association.

When Dr. Vasquez is not practicing dentistry, she enjoys traveling and watching sporting events. Dr. Vasquez is bilingual in English and Spanish and her inspiration to become a dentist was led by her willingness to help under-served communities.

Dr. Andy Koh DDS

Dr. Andy Koh DDS

Bio Coming Soon!



Originally from Eureka, Chrissy now lives in Cedar Hill with her husband TJ and two children Edison and Mila. She enjoys doing yoga and spending time with her family and friends. She loved going to the dentist as a child and has been a dental assistant since 2007.



Michelle has been in the dental field since the age of 18. She has been with Hermann Family Dental and Timber Ridge Dentistry since February 14, 2012. She loves working with patients and tries to make them feel comfortable from the minute they walk in the door.

Michelle is from Pacific, MO, where she resides with her husband Rob and two children – Robert, 14, and Matilda, 4. Michelle enjoys spending as much of her free time with her family as possible.