Our Santa Clarita General & Cosmetic Dentistry Team


Santa Clarita Dental Specialists

Our exceptional, friendly, long-standing staff is our greatest asset. The majority of our staff has been part of this team for 25 years plus. Our dental assistants and hygienists are licensed professionals who pride themselves on staying on the cutting edge of dentistry and patient communication. We are excited about what we are doing, have high standards of quality and integrity, and are motivated to achieve the best results for our family of patients.

We are dedicated and motivated with one primary goal—your utmost comfort! We feel it’s important that you understand the treatment that you’ll be receiving so that you can relax during the procedure.

We are eager to answer any questions regarding your dental care. Please feel free to share with us your needs and concerns. Call for an appointment and experience the difference today!

Helen Grenfell

Office Coordinator

I moved to Santa Clarita from Michigan in 1985, the same time Dr. Tanner was starting up his practice. Having been trained by a dentist with the same ethics and morals as Dr. Tanner, it was a natural transition to start working with him. His goal was to build a strong dental practice for this community, which I am proud to say he has accomplished. Having 50 years in the dental field and 30+ years in this office, I can say that it has truly been a pleasure watching this practice grow. I am especially proud of the fact that our office is always on the cutting edge of technology in the dental industry. We continue to advance our skills so that we can give our patients the very best dental care. Our staff is a family and it has been a joy to experience all the weddings, babies and wonderful family developments through the years. I have been married to Byron since 1958 and we enjoy spending time with our family which includes two daughters, five grandchildren and three great grandchildren.

Dolores Mendoza

Financial / Treatment Coordinator

I have had the pleasure of working for Dr. Tanner since 1998. After 17 years of service, I took a sabbatical to help out with my granddaughter Savannah, who was starting kindergarten. Once she was in school for a longer day, I just knew I had to come back. Dr. Tanner welcomed me back with open arms. Who is that blessed . . . . ME! My position as Financial/Treatment Coordinator offers me the opportunity not only to help patients improve their overall dental health, I also get to help people to achieve their cosmetic goals. I know our patients are in the right place and are going to get the very best dental care. The Tanner staff is a family. Each employee is caring, passionate, understanding and only wants the best for you.

A little about me . . . I graduated from Valley College Medical and Dental Careers in 1986. I have a wonderful husband of 30 years, three beautiful daughters and two gorgeous granddaughters. When not helping you here at the office, I love to golf and travel in our travel trailer to visit our daughter in Pennsylvania.

Sarah Ortega

Patient Coordinator

I am so happy to have joined the Tanner Team in 2017. I've been in the dental profession for 18 years. I am a transplant to this area, originally from Visalia, in the Central Valley of California. I moved here in 2010 with my husband Peter, who is a professional musician and a music educator. I have 3 adult children, Sean, Chloe and Mariah, one grandson, Ryden and my malti-poo Coco.

I'm a musician as well, playing keyboards and singing in a cover dance band called Higher Ground, so you might catch me performing in Burbank and the surrounding Valley. I'm very excited and thankful to have been welcomed in to the Tanner family and I look forward to getting to know all of our amazing patients.

Lisa Clyde

Registered Dental Hygienist

The first thing you need to know about me is that I love my job! I graduated Magna Cum Laude from Northern Arizona University with a Bachelor in Dental Hygiene. I moved to Santa Clarita in 1990 and have worked with Dr. Tanner since 1994. Dr. Tanner’s high standard of care and excellent restorative skills has made my time here a pleasure. I also absolutely love my “work” family. There isn’t a better group of people to spend my time with. They are not only wonderful people, they are also dedicated to making our practice the very best it can be. We all take pride in our ability to provide this valley with top notch dental care. I am married to Andy, the most amazing man ever and together we have 4 fun, active, loving kids. All in all I can say that I have been very blessed!! Looking forward to meeting you and your family, you will LOVE it here!!

Carol Erksin

Registered Dental Hygienist

I am happy to say that I have been working with Dr Tanner since 1997! My journey at this office began when Helen, our wonderful office manager, called to see if I could work for a day as a substitute hygienist for Lisa, who was on maternity leave at the time. I’m so grateful for that phone call, because here I am, 20 years later! I substituted and never left! I have great respect for Dr Tanner and his excellent skills as a dentist, along with his compassion and genuine care for his patients. Along the way Dr Tanner and all of the staff have become like family to me. I believe that this “family” feel is evident to our patients, as it creates a very comforting and warm atmosphere for them while they spend time with us. We have a good thing going on here! I graduated from West Los Angeles Community College Dental Hygiene Program in 1988, where I was President of my class. I furthered my education and graduated Summa Cum Laude from Northern Arizona University with a Bachelor in Dental Hygiene. I have a wonderful husband, Bob and together we have 5 awesome children. I love to hike, play the piano, travel and read. I’m always interested to hear about the travels of my patients and their travel tips, as well as any recommendations for a good book to read!

Nancy McGinnis

Registered Dental Assistant

I’ve had a rewarding career in dentistry that started in 1976. I have seen a lot of changes in dentistry over the years, 21 of them with Dr. Tanner. I do not believe there is a question about dentistry that I can’t answer….so try and stump me!! I’m also a CAMBRA specialist, which means I can teach you how to fight against tooth decay.

I have 3 kids and 1 grandson. My husband and I have been together for 35 years; it’s rewarding too!! We love to travel and explore. Some of the places we’ve been to include New Zealand and Tahiti.

Tina Moore

Registered Dental Assistant

I grew up in this valley and graduated from Canyon High. I graduated from the Dental Assisting program at National Education Center in 1984.

I have 32 years of dental assisting experience and have been a RDA for 31 years. I have been working with Dr. Tanner since 1991 and I especially love the artistic side of dentistry. I love helping people achieve healthy, beautiful smiles.
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Leticia Calderon

Registered Dental Assistant - Extended Functions 2

My name is Leticia Calderon. I am a Registered Dental Assistant with Extended Function licensed by the State of California, also known as a restorative assistant. I attended UCLA for the RDAEF2 course and successfully complete in 2010. I have more than 28 years of experience in all aspects of dentistry and specialties from general dentistry to oral surgery and oral sedation to IV sedation. I am also a CDA certified dental assistant instructor. I started my career as a dental assistant at the age of 19. I can proudly say that I enjoy my career and find it very rewarding and I love making a difference in people's lives.

My family has always been very supportive throughout my career. I have been married for 27 years and have three beautiful children, 2 sons and 1 daughter. I truly believe that I have been blessed throughout my life. I am excited and very happy to be part of this wonderful dental practice that is devoted to their patient's well-being and beautiful smiles.