Dental Staff

All professionals at Guy A. Mangia, DDS maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Naz Ahoubim

Naz Ahoubim, RDH

A graduate of USC School of Dentistry and has a B.S.  Degree in Dental Hygiene, has been caring for our patient’s periodontal needs for over ten years now. When she is not here in the office seeing patients, she loves to travel with her husband and three young children.  Between getting in a workout, taking her kids to karate, dance and school activities, she stays very busy!

Monica Orjuela

Monica Orjuela, RDH

Monica is a graduate of the USC School of Dentistry and has a B.S. Degree in Dental Hygiene, she began her career in dentistry in 1996. Monica has been working as one of our hygienists since 1996. She loves helping patients understand how to care for their teeth and gums. Patients instantly feel at home with Monica because her care and concern for them is obvious from the first moment.

A great hygienist, with a real ability to connect and understand people, is how Dr. Mangia describes Monica. “My patient’s rave about how comfortable and confident they feel when they are in her chair,” said Dr. Mangia. “I rarely go in her hygiene room or pass a patient in the hall without someone pointing out to me how much they like Monica,” he added.

Ovsanna Odabashian

Ovsanna Odabashian, RDH

Osvanna began her career in dentistry in 1991 as a registered dental assistant, she continued her education to become a hygienist and holds a B.S. degree in Public Health.  She has been practicing hygiene since 2008 and has been a part of our team for over ten years. She loves every minute of it and is excited to learn, expand and share her knowledge of the dental field. In her spare time, she travels to see patients that are confined to a hospital, wheelchair or live in rural areas, with little or no dental care.  She enjoys summer outdoor activities, skiing in the winter and spending time with her family.

 Carrie Keogh-Brown

Carrie Keogh-Brown,RDA

Carrie has enjoyed working with Dr. Mangia since 1997. As an RDA she has used every opportunity to expand her dental knowledge and apply her amazing talents in patient care. Carrie’s bubbly personality and smiling face are well known and loved by our patients. She enjoys the interaction and sharing with patients while providing top-notch dentistry.

Carrie and her husband have two little dogs Mollie and Rokie. She loves making holiday crafts, baking amazing goodies, taking long cruises with her husband, and spending time with her family and friends. 

 Adriana Mejia

Adriana Mejia, DA

Our newest member of the staff, Adriana has been with us for three years now and is always available when and where she is needed, whether it's at the front desk or in the back assisting with Dr. Mangia and you the patient!  Now as our Appointment Coordinator she helps our office run as smooth as possible. Adriana enjoys spending time with her family, friends, long walks in the park and spending time at the beach.  She keeps busy as a nanny part time to several families here in the Valley.


Evelyn, Business Administrator

Evelyn is the facilitator of our practice, the one who implements and oversees the administrative functions of the practice. She is an expert in making your dental treatment affordable. She will also assist you in maximizing your insurance benefits, as well as coordinating your appointments.

In her spare time, Evelyn spends her days watching and supporting her 18 year old daughter Nathaly while she plays Basketball and Softball. She herself has been active in a co-ed softball league.

Hours of Operation

Our Regular Schedule

Guy A. Mangia, DDS


9:00 am-2:00 pm

Reception Hours


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 PM


8:00 am-5:00 PM





Our Location

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