Office Hours: Monday - Friday - 9:00am - 6:00pm, Sat & Sun - Closed

Our Offices

We pride ourselves on offering you the most comfortable and pleasant dental experience available. Our offices are designed specifically to make you feel at home, with cozy furnishings, and television, for an unparalleled experience. Your safety and comfort is our primary concern, and we surpass all industry standards and strive to treat you like family.

Scheduling an Appointment

Please call us at 909-930-2500 or click on the “Book Appointment” button above to schedule an appointment. We do our best to accommodate your schedule. Emergency appointments are available if you need them.

Insurance & Financial Arrangements

We are pleased to submit insurance forms on your behalf. We are committed to helping you obtain the treatment you need, and will work with you to help you receive the maximum amount of insurance benefits.

For patients requiring major dental work, a payment plan is available, and we are happy to speak with you about a schedule. Our office accepts cash, checks, and major credit cards.

Cancelling Appointments

If for any reason, you need to cancel an appointment, we ask that you provide us at least 24 hours notice. We ask this in order to provide timely care for all of our patients. Cancellations without 24 hours notice may incur a cancellation fee.

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Meet Your Doctors & Staff

Dr. Ned Paniagua

Dr. Ned Paniagua

Ned Paniagua, DMD received his Bachelor of Arts degree in Molecular, Cellular and Developmental Biology from UCSC in 1997. In 2002 he graduated from the reputable Boston University, where he received his Doctorate in Dental Medicine degree. At time of graduation Dr. Ned Paniagua received the honor of being placed in the top ten of his graduating class and making the Dean’s List.

After graduating from dental School, Doctor Ned Paniagua has placed his current focus on cosmetic and implant dentistry. His education is ongoing; he regularly attends continuing education courses to stay current on the latest procedures. Doctor Ned, (as most of his patients call him,) combines a passion for dentistry with a sincere interest in his patients. His enthusiasm for his work is what makes patients feel welcomed and well cared for. Dr Ned and his associates firm belief is, “A healthy smile is a beautiful smile.” Their main goal is to help you and your family, achieve and maintain healthy teeth and gums. They believe that well informed patients can take educated decisions, and that is why we take the time to get to know you and your families needs.

  • Member of the Academy of General Dentistry
  • Diplomate of the International Council of Oral Implantologists (ICOI)
  • Former member of the American Society of Osseointegration
    “Certified Provider” for Invisalign Orthodontics
  • Volunteer doctor at the Assistant League of Upland , San Antonio Clinic
  • Member of the American Dental Association
  • Honored as one of the top dentist in The I. E. by The Inland Empire Magazine 2014 and 2015

Guillermo Camacho, DDS

Guillermo Camacho DDS

Dr. Camacho comes to us with a wealth of experience and a great deal of expertise.

Dr. Camacho received his Doctor of Dental Surgery (D.D.S.) degree from the UCLA School of Dentistry in 1997. He then continued his training by completing an extensive residency in Hospital Dentistry at the University of Washington Medical Center and affiliated hospitals.

During his residency at the University of Washington he trained at the Seattle Children’s Hospital Dental Medical Clinic, Odessa Brown Children’s Dental Clinic, the Seattle Veterans Administration Medical Center Anesthesiology Department, and Harborview Medical Center Oral and Maxillofacial Surgery Department. Upon his return to Southern California, Dr. Camacho received extensive training in orthodontics and received a certificate from Progressive Orthodontic Seminars.

In further pursuing advanced dental training, Dr. Camacho has taken numerous advanced comprehensive courses from the world renowned cosmetic and neuromuscular center, The Las Vegas Institute for Advanced Dental Studies (LVI). His accomplishments have placed him among the most highly trained dentists in the country.

Margine H., RDH

Margine H., RDH

With over 20 years in dentistry, Marge began her journey as a Registered Dental Assistant and managed a dental practice prior to attending Loma Linda University to pursue her dream career as a dental hygienist. She considers the comfort and dental health of her patients as her primary priority. Patient education is key focusing on preventative dental care.

Her professional affiliations include hospitality chair for Tri-County Dental Hygiene Society and is a member of American Dental Hygiene Association.

In her spare time she enjoys running, hiking, camping, snowboarding and spending time with her family including her Jack Russel Terrier, “Peanut”.

Fressia Nunovero, RDH

Fressia Nunovero, RDH

Fressia is specialized in preventive dentistry. She graduated from Loma Linda University where she earned a Bachelor of Science degree in Dental Hygiene. She gets great joy from her work as a dental hygienist and having the ability to help people develop and maintain the healthiest teeth and gums possible. Fressia is committed to lifelong learning and attends several education courses a year to strengthen her knowledge in the field of dentistry. Her philosophy is to empower her patients with knowledge of the importance of oral health and the essential part it plays in their overall health. Without doubt she has a passion for her profession and considers it a priority to make each patient’s dental visit a positive experience by adding a gentle but thorough touch. In her free time, she enjoys spending time with her family, volunteering with different organizations, and participating in her yearly-cherished travels abroad providing dental care to under-served areas of the world. She is also a thrill seeker… skydiving, kayaking or any new adventure.

Book Your Appointment Today!

Our friendly and knowledgeable staff at Ontario is committed to meeting your needs as a patient with comprehensive care using advanced, proven technology.