Keen Family Dentistry
Dental Office of C. Mark Keen, DDS
General and Cosmetic Dentistry
Call: (909) 989-6661

Meet Our Team



















Office Manager

Hi! My name is Monique and I am the Office Manager at Keen Family Dentistry. I have worked with Dr. Keen since May 2016; however, I have been in the Oral Surgery and Dental field since 2015. Dentistry is truly my passion. I absolutely love our patients and the relationships we establish with them. My goal is to provide you with the best care, answer all of your dental questions and assist you in the best treatment to having a gorgeous smile. When I’m not at the office I enjoy spending my days with my boyfriend and our pups, Mötley and Cooper, going on different adventures! Working with Dr. Keen and the rest of our staff is the best experience and we truly are one big family that I am so grateful to be a part of! 


Communications Coordinator

Hi! My name is Christina and I'm the Communications Coordinator here at Keen Family Dentistry. I have been in the field for about 4 years now and I have enjoyed every bit of it. I adore how I can make our patients happy and create relationships with them. On my free time I like spending time with my boyfriend and create memories with my family and friends. I like going on adventures and exploring new places. My goal is to strive in providing the best customer service to our devoted patients, making them feel like they are at home. I'm very excited to be part of the Keen Family Dentistry and can't wait to meet all of you! 


Registered Dental Assistant

Hello, my name is Luis, also known as Dr. Keen’s right hand man. I graduated from Dental school from Mexico City in1984.  I have been working alongside Dr. Keen since 1995. On my days off I enjoy spending time with my grandchildren and barbequing with friends and family.  


Registered Dental Assistant

Hi! My name is Griselda and I have been working with Dr. Keen for 14 years. I enjoy spending time with my 3 year old son, Roman and my husband Jason who is the love of my life. I enjoy spending my spare time with my family, working in my garden and finding the beauty of nature. 


Registered Dental Hygienist

Hello, my name is Yolanda. I have been a Dental Hygienist for 35 years. I graduated from West Los Angeles College. I have been married for 30 years and have a son, Sammy. I enjoy my days off in my garden and spending time with my 18 year old dog and my 16 year old cat.


Registered Dental Hygienist

Hello, my name is Jazzmin! I have grown up in the Upland area since the age of 10. Back in 2015, I received my Bachelors of Science in Dental Hygiene from West Coast University. I always strive to ensure all of my patients feel 100% comfortable in our office. Away from the office, I love spending time with my husband and beautiful baby girl, Aria. One of my favorite things to do on a Friday night is to play board games with my family!


Registered Dental Hygienist

Hi, my name is Amber! I have been in the Dental field for 25 years. I love getting to know my patients and educate them on their oral health. I have been married for 12 years and enjoy my spare time with my cat, off roading and boating with my husband. I love being outdoors! I am so excited to be a part of Keen Family Dentistry and to meet all of you!


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