DNA Services of America provides accurate, confidential, chain-of-custody DNA paternity testing accepted by California Superior Courts, including the family courts of Los Angeles, Orange, Riverside, and San Bernardino counties.
John Taddie, Ph.D. is Director of our Los Angeles and Orange County DNA testing center. Dr. Taddie has over 13 years of experience in DNA testing for paternity, family relationships, and human identification. He has supervised over 150,000 DNA paternity and family relationship tests, has reviewed over 45,000 individual DNA test cases, and has testified as a DNA expert in over 50 California civil and criminal court trials involving cases of child support, custody, probate, welfare fraud, immigration, sexual assault, incest, and homicide.
Dr. Taddie is a current member of AABB and a former appointed member of the AABB Relationship Testing Standards Program Unit, the team of experts that establishes AABB’s internationally accepted Standards for Relationship Testing Laboratories. In this capacity, he was a contributing writer to the 6th and 7th Editions of the AABB's Standards for Relationship Testing Laboratories. Dr. Taddie received his B.S. in Microbiology from Penn State University in 1986, obtained his Ph.D. in Molecular Biology from Cornell University in 1992, and completed a postdoctoral research fellowship at the Salk Institute in 1995.
Dr. Taddie presents frequent lectures on DNA testing to legal groups, medical associations, and government agencies throughout Southern California. He has been a guest lecturer for USC School of Medicine, UC Irvine Medical Center, California State University, the American Red Cross, the Orange County Clinical Laboratory Management Association, and the California Welfare Fraud Investigators Association. Dr. Taddie has also been an invited speaker and educator for the Department of Child Support Services in over 40 California Counties, including Los Angeles, Orange, Riverside, San Bernardino, San Diego, and Imperial counties, and he has provided MCLE (Minimum Continuing Legal Education) on DNA testing to numerous local legal organizations, including the Beverly Hills Bar Association, the South Bay Bar Association, the West Orange County Bar Association, the Orange County Paralegal Association, and Legal Secretaries Incorporated.
Since 1997, Dr. Taddie has been helping clients resolve diverse, unique, and complex family relationship questions through DNA testing. He understands and appreciates that every situation is very personal, and very private. Please feel free to call and ask to speak to Dr. Taddie directly for a free confidential consultation.
You may download Dr. Taddie's resume by clicking on this link
Please contact us at:
1800 North Bush Street, Suite 200
Santa Ana, CA 92706
(714) 648-0468 – Phone (English)
(714) 648-0868 – Phone (Spanish)
(714) 648-0478 – Fax
Mon-Fri: 9am - 6pm
Sat-Sun: By Appointment
Evenings: By Appointment
Contact Orange CountyDirections:
We are located in Santa Ana at the corner of 18th and Bush Streets (one block northeast of 17th and Main). We are just off the 5 Freeway and easily accessible from the 22, 55, 57, 91 and 405 Freeways.
From the North: Take your favorite freeway to the 5-S. Take the Broadway/Main St. Exit, followed by the Main St. South Exit, in Santa Ana. Take a right onto N. Main St., go approximately ¼ mile, then turn left onto 20th St. Go one block and turn right onto N. Bush St. Go one more block and turn right into the parking lot of the Santa Ana Family Medical Center.
From the South: Take your favorite freeway to the 5-N. Take the 17th St. Exit, turn left onto 17th St., go approximately ¼ mile, then take a right onto N. Bush Street. Go one block, then turn left just past 18th St. into the parking lot of the Santa Ana Family Medical Center. We are on the 2nd floor of the medical center.
Get MapDNA Testing in Orange County CA has never been more convenient than it is right now. DNA Services of America leads the way when it comes to providing trusted, convenient, accurate and affordable DNA testing services. Our focus has always been to bring DNA testing services directly to communities across America. We have more than 5,000 authorized service centers, so chances are great that we have one located near you.
Since entering the DNA testing services business in 2004, DNA Services of America has evolved into one of the most unique, customer centric, full-service DNA testing companies in the United States. We have provided excellent service and support to thousands of clients both in the U.S.A. and throughout the world.
DNA Services of America offers DNA testing services for family relationships; including DNA Paternity Testing, Family Reconstruction, Twin-Zygosity Testing, Avuncular DNA Testing (aunt and uncle testing), Siblingship Testing and more. Best of all, our contracted laboratories are the most highly accredited DNA testing laboratories in the world!
Every year we perform hundreds of DNA tests for Immigration purposes. Our relationships around the globe with Embassies, consulates and clinics allow us to offer the most streamlined and convenient experience in the industry.
DNA Services of America also offers DNA testing services for infidelity and forensics. Maybe you have a feeling that your spouse/partner is cheating on you. We can help get you the answer. If you or someone you know is involved in a possible criminal or civil legal dispute, we can assist by DNA testing evidence to confirm whether a certain individual left behind the DNA in question. We also do post-conviction DNA testing in an appeal situation or if new evidence arises which may put the original court decision in question.
Who would have thought that you could call one company to get all of these DNA services right in Orange County CA? In fact, we also offer many other DNA testing services. We perform DNA testing for Ancestry. Like never before, you can discover secrets hidden within your DNA! You will have so much fun learning more about your family and yourself through this unique DNA test. For beginner genealogists, people who have been adopted or those of us who are simply curious about our family’s genetic make-up, call us today at (714) 648-0468 for a free consultation.
We also offer Animal DNA testing services. Have you ever wondered why your dog acts a certain way? Or, have you ever been asked, “What type of dog is that?” Well, we can help you get the answer very affordably through our dog breed DNA testing services. We also offer gift certificates for DNA identification for loved one’s pets. They really make a great gift and the information will not only be a subject of enjoyment, it can also help with your pet’s veterinary care. Different breeds of dogs have different potential medical issues and a dog breed DNA test can provide you and your veterinarian with helpful information should you need it.
In addition to dog breed DNA testing, we offer DNA testing to confirm pedigree through Canine DNA Testing and Feline DNA Testing. One of our most interesting tests is our Avian Sexing to determine the gender of your pet bird. This is certainly important if you consider breeding your pet bird.
Thank you for visiting our site. We are so proud that we can offer convenient and affordable DNA testing services right here in Orange County CA. We would love to talk with you and help you get the answers that you are looking for, so please call your dedicated Case Coordinator now!
