To all current and new patients:

We are open and available to handle your emergency needs.

Meet Our Staff

Kathy Hellwig – Manager and Treatment Coordinator


Kathy Hellwig

Kathy started with our dental office in 2000 and is in charge of educating patients on their options. Before joining the practice, she owned and operated her own computer parts and repair company, a travel agency and raised emus, ostriches, parrots and horses on her ranch in Alpine. She is very well traveled and our in house computer tech. Hobbies include tennis, biking, walking and cruising our beautiful San Diego water ways.


Olga Fredrickson – Registered  Dental  Hygienist

Olga Fredrickson

Olga started with us in 2014 and is a wonderful addition to our team. She has a passion for oral health and helping our patients understand how to best take care of their teeth and gums. She is certified in laser gum therapy and is very knowledgeable about oral cancer and oral bacteria. Hobbies include spending time with family, hiking and cooking with her daughter.

Marissa Pratt – Registered Dental Assistant and Front Office Manager

Marissa Pratt

Marissa AKA “Sam” has been with our office since March of 2006. “Sam”  is our front office manager and dental insurance expert  as well as our greeter. She is the first beautiful smiling face you see when you walk in our office. She spent over 5 years as Dr. Hellwig’s surgical assistant and still assists Dr. Hellwig when necessary on major surgeries. Hobbies include shopping, river, spending time with her family and taking care of her 2 dogs, Alkie and Boozer.

Bonnie O’Quin – Registered Dental Assistant and Back Office Manager

Bonnie O'Quin

Bonnie started with our office in October of 2006. She took some time off several years ago to have 2 adorable twin boys followed by a cute daughter a year later. Bonnie is Dr. Hellwig’s main assistant and helps with training new staff. We are fortunate to have such a knowledgeable and helpful team member. On a fun note, Bonnie is our “People” magazine expert. Just ask her anything about anyone in People and she’ll  know the answer. Hobbies include spending time with her 3 youngsters and family doing fun things like Seaworld, the zoo and other parks. She lives in the county and has mini pigs, a turtle, chickens and a dog.  

Shanette Campbell – Dental Assistant

Shanette Campbell

Shanette AKA “Netty” started with us in 2013 and is a delight. When you hear lots of laughing in our office, it will probably be her. She has a great sense of humor and a lot of energy. “Netty” loves people and especially children. In addition to assisting with surgeries and dental procedures, she helps “Sam” with the front desk and insurance claims. Hobbies include spending time with her equally energetic daughter and family. Her weekends usually include Sea World and the Zoo. When she has time on her own, she loves to bike and eat hot cheetos.

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El Cajon Office

359 W Madison Ave Ste 200
El Cajon, CA 92020

Closed Today

In addition to our normal office hours we are open on Friday for appointments by special request.

Hours & Info


(619) 440-6364