25982 Pala Dr. Ste. 110 Mission Viejo, CA 92691(949) 707-7000

Our Staff


All our professionals at Gateway Dental Group maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in cosmetic dentistry.

Dr. Shadi Rad, B.S., D.D.S., M.S.

B.S., Psychobiology, UCLA, 1994
M.S., Oral Biology and Medicine, School of Dentistry, UCLA. 1997-1999
D.D.S., NYUCD, Comprehensive Dentistry. 1999-2003 (From prestigious New York University)

Professional Affiliations:
American Dental Association (ADA)
California Dental Association (CDA)
Oral Sedation Dentistry
Orange County Dental Surgery (OCDS)
American Academy of Implant Dentistry (AAID)

  • Invisalign Premier provider 5 years in a row.
  • Top Doc America 2011
  • Talk of Town Award 2011 “***** Rating”
  • Outstanding High-Tech and system Integration Award form Matsco and featured in Dental Economics Magazine.
  • International Association of Dentist Leading Physicians of the World 2010-2011
  • Official cosmetic dentist for Miss. Mission Viejo sponsored by Donald Trump in 2010
  • International Association of Dentist Award 2010
  • America's Top Dentist Award  in 2007 and 2009.

As you know PAOO (Periodontaly Accelerated Osteogenic Orthodontics) is a REVOLUTIONARY effective treatment approach in adults to decrease treatment time and reduce the risk of root resorption and relapse. Treatment time can be reduced up to 4.5 months with 70% less chance of root resorption and relapse. (Supported by periodontics and orthodontics literature). In many cases it can eliminate the indication of some orthognatic surgeries. Indications of the procedure are dentoalveolar discrepancies such as:

  • Severe Crowding, Open bite, Palatal
  • Expansion/lingual or buccal
  • Segmental movements, CI II /CI III
  • Relations, Rotations and more.

Dr. Robert Camhi

Bachelor of Science degree from the University of California at Davis in 1975.
Dental degree from Temple University Dental School in 1979, the dental school at Temple has consistently been ranked as one of the top dental schools in the country.
Dr. Camhi has been practicing dentistry in Southern California since 1984
He prides himself on keeping up with the latest trends in dentistry by attending a variety of continuing education courses on a regular basis

Dr. Joseph I. Whedbee

B.S., Biology, La Sierra College School of Arts and Science, Riverside, CA 1976
Loma Linda University School of Dentistry, Loma Linda CA 1982

Professional Affiliations

  • American Dental Association
  • California Dental Association
  • Tricounty Dental Society

Honors and Awards

  • International College of Dentists Outstanding Achievement Award

Research Experience

  • National Institute of Health Bethesda, MD
    Topic: Endocrinology

Skills and Training

  • Endodontic- Performed Root Canals and Retreats exclusively with specialist for years
  • Oral Surgery- Proficient in 3rd molars extraction, Tori removal, and all minor surgeries
  • Implants- Surgical placement and restorative
  • Orthodontics- Invisalign Trained
  • Restorative- Crown and Bridge, Veneers, Inlays, Composites
  • Sedation- Licensed Oral Sedation

Dr. Steven J. Edwards, DDS

Dr. Steven Edwardsis a 1986 graduate of the USC School of Dentistry. He also holds degrees in Biology and Dental Laboratory Technology, as well as a certificate in Personal Fitness Training.

A resident of Laguna Niguel since 1987, he has practiced in South Orange County and San Diego County for over 26 years. Most notably, he worked on the Southern California Camp Pendleton Marine Corps Base from 2002 to 2007 caring for the families of our brave soldiers. He enjoys doing all phases of dentistry, and has performed many full mouth reconstructions and cosmetic makeovers. Whatever your dental needs are, Dr. Edwards can help you.

Dr. Edwards is an inventor and author with two published books. He was awarded a toothbrush patent in 2008. He is also co-inventor of “XyliMelts”, an intra-oral xylitol delivery product for the relief of dry mouth symptoms, and he has developed a new oral health regimen called “Oral Fitness” for the prevention of most common dental problems. He is currently working on a Sci-Fi novel as well as a series of preventive dental booklets.

His interests include his family (wife and three children), dogs, music, art, cars, guitars, tinkering, inventing, exercise, languages, traveling, reading, and much more. He speaks some Romanian, Farsi (Persian), and a little dental Spanish.

Dr. Richard Barone, D.D.S.

B.S., Biology, Santa Clara University
D.D.S., UCLA, Comprehensive Dentistry

Mayra Urbieta, D.M.D. Periodontist

  • Nova Southeastern University, Residency in Periodontics July 2007 – June 2010
  • University of Florida, Advanced Education in General Dentistry (AEGD) July 2005-June 2006
  • VA Hospital, Miami Florida, Dental Externship January-March 2005
  • Boston University, Goldman School of Dental Medicine, Doctor of Medical Dentistry (DMD) June 2003- May 2005
  • University of Texas Health Science Center at San Antonio, School of Dentistry 2001-2003
  • Georgetown University, School of Nursing and Health Studies B.S. in Health Studies: Concentration in Science, May 2001
  • Academic and Professional Organizations
  • American Academy of Periodontology
  • Academy of Osseointegration
  • California Society of Periodontists
  • American Dental Association
  • California Dental Association
  • Florida Dental Association
  • Florida Academy of Periodontics


Dr. Avery Mittman, M.D.

Board Certification Anesthesiology, 1996
Board Certification Family Practice, 1990
California State License, 1988
ACLS/BLS Certification
Pediatric Advanced Life Support

Professional Affiliations:
American Society of Anesthesiologists
California Society of Anesthesiologists
American Academy of Family Physicians
Society for Office based Anesthesia
Liga International

Dr. Luz Lilian Gamboa D.D.S