About Us

All of the DentalSource of CA offices are managed by Ashen Company, Ltd., a Sacramento based company.

We conveniently offer our own x-ray services – and all of our offices have private treatment rooms. Everyone at our office is committed to providing you with the most advanced dental treatments and technology available – while maintaining a calm and comfortable environment.

You’ll also be happy to know we have a Quality Control Department headed by a California Association of Dental Plans Certified Quality Assurance Auditor … which monitors and manages the clinical aspects of our dental offices on a daily basis.

You’ll feel secure in knowing that ALL of our dentists come to us with extensive experience in the dental field … and ALL participate in continuing education programs to keep them up to date on the latest advances in dentistry.

Our Owner: Donald E. Clarke, D.D.S.

Dr. Clarke is not only owner-dentist of all the DentalSource locations, he is also Chief Clinical Officer for Ashen Company, Ltd. He brings with him the value of 30 years of practice experience, 23 of them with Ashen.

Dr. Clarke has a degree from the University of the Pacific School of Dentistry, and certification from the California Association of Dental Plans as a Quality Assurance Auditor … making him uniquely qualified to manage the overall production, clinical staffing and code compliance in the dental offices.

Dr. Tanase

I have been in the Dental field for many years, and have obtained my Doctorate Degree in Dentistry. At Dental Source, I work with patients to diagnose and treat dental issues. I am also proud to be bilingual, which allows me to reach and help more clients and to communicate fluently with members of my community. I also pride myself on being able to work with patients to increase their knowledge of their oral health. In my spare time, I enjoy reading, learning about new subjects, and staying educated on current events in society.

Our Staff

Jeanne Giller

I began my journey in Dentsitry at Mid-State Dental College, and graduated from their Dental Assisting program. At Dental Source, I work as Office Manager. I enjoy handling billing and insurance, working with insurance to coordinate patient care, sending out statements, and communicating with patients to set up appointments. I take enormous pride in my sons and my three granddaughters. I am also immensely proud of having been with Dental Source for over twenty years, and I have loved every minute of it! In my free time I enjoy working in my hard and spending time with my grandbabies.

Susie Juaregui

I attended Dental School and completed the program for Dental Assisting, and have also taken additional college courses. My professional duties include making appointments and answering phones, checking patients in and out, communicating with patients and insurance companies, and mailing letters to patients. In my life, I am most proud of my son, who I have raised into a wonderful young man.I am also proud of having been with Dental Source for twenty two years, and have met many amazing coworkers and patients along the way. In my free time I enjoy spending time with my son and being with my family.

Maria Renteria

I attended Galen College for Dental Assisting, as well as one year at Modesto Junior College. My professional duties are to supervise RDAs in the back office and to work closely with my coworkers. One of my favorite things about work is getting to learn new hands on procedures. I am proud of being with Dental Source for over nine years, and look forward to the years ahead. In my free time, I enjoy reading, taking trips out of town, hiking, and spending time at home with my family.

Margarita Beltron

I began my journey in Dentistry at the Dental Assisting Institute, and completed their assistant program. I have also attended college classes outside of dentistry as well. At work, I enjoy assisting the doctor in procedures like root canals, crowns, and fillings. My favorite part of the job is talking with my patients and educating them on their oral health. I am proud of becoming a Dental Assistant, buying my own home, and becoming a mother. I am also proud that I have been with Dental Source for 11 years, and have seen many of my patients grow from kids to adults. In my free time I enjoy spending time with my children and helping out at my church.

Javier Tapia

I studied Dental Assisting at Kaplan College and completed the program in 2013. At Dental Source, I help both the front and back offices, and handle appointment scheduling and confirmation. My favorite part of the job is seeing my patients smile. I pride myself on my knowledge of the procedures of the front office. Even after five years in the field, I still learn new things on a daily basis, which I enjoy immensely. In my spare time I enjoy being around my family, gardening with my mom, and barbecuing with family and friends. I also enjoy playing volleyball and spending time outdoors when the weather is nice.