DNA Diagnostics center logo

The Most Trusted Paternity Laboratory in the World


DNA Testing

The Most Trusted
Name in DNA Testing

        1-800-613-5768    spacer    contact ddc  ddc facebook icon  ddc twitter icon  ddc youtube icon
 mobile     spanish   
  Collection Affiliates
  Corporate Partners
  Medical Personnel
  Legal Services

Download our Printable Brochure

  Home -> Medical Professionals

Physician's Portal

Welcome to our Physician's Portal. On this page, you will find answers to common questions about DNA paternity testing. Please feel free to browse through our website to learn more. To request free literature for your patients, or to receive occassional updates on our genetic testing products, please fill out the form below.

Please send me literature for my patients at the address below.
Please include me in your email list for occassional updates on genetic testing.
Zip Code
Other Comments:


What is a DNA paternity test, and how is it performed?
A DNA paternity test uses DNA samples from the alleged father, child, and mother to create their genetic profiles—snapshots of each person’s genetic makeup. Since children inherit their DNA from their biological mother and father, the child’s genetic profile should be composed of equal portions from the genetic profiles of the mother and father.

In a DNA test, buccal swabs are used to collect DNA from loose cheek cells. DNA is extracted from these cells and purified for the Polymerase Chain Reaction (PCR). PCR targets specific segments in the DNA (called markers), amplifying them to detectable levels. The markers are recorded as a genetic profile. Statistical calculations are used to determine the probability of paternity based on how closely the child’s profile matches those of the parents.

What are DDC’s qualifications as a DNA testing laboratory?
DDC’s laboratory has always maintained or exceeded the strict quality standards required by professional organizations such as the following:

  • American Association of Blood Banks
  • College of American Pathologists
  • U.S. Department of Health
  • New York State Department of Health
  • International Organization for Standardization (ISO).

In our previous flawless accreditation inspections, these organizations have reviewed our procedures and verified that we produce accurate DNA testing results that are accepted by a court of law or other government agencies. Please visit our Accreditations page to learn more.

DDC’s team of outstanding scientists, who oversee the testing and sign off on every single report, includes 7 PhDs in the fields of molecular biology, forensics, and biological chemistry and an M.D. with an M.S. degree in Medical Genetics. Our laboratory directors are nationally recognized for their work in DNA technology. Please visit our Laboratory Staff page to learn more about them.

What makes DDC stand out as the lab of choice?
DDC performs 3 out of 4 private paternity tests in the U.S.—more people choose DDC because of our accessible, and high-quality, affordable services. We perform all tests twice in our unique Dual Process™, which ensures accurate results with no disputes. Our Chain of Custody process ensures our results are accepted by courts and other government agencies.

DDC has the largest network of sample collection sites in the U.S. and worldwide. If your patients live in the U.S., we can schedule a DNA sample collection near their work or home, often on the same day that they call.

DDC’s test offers testing quality no other laboratory can match. Ask your patients to call 1-800-613-5768 for a free consultation. Our caring client service representatives will walk them through every step in the testing process. All calls are are kept confidential and we do not release any patient information to unauthorized persons.

Are there opportunities for medical professionals to partner with DDC?
As the world’s largest private paternity testing laboratory, medical professionals often inquire about the opportunity of a closer partnership with us by becoming a Collection Affiliate (sample collection site) or a Corporate Partner. Please visit these pages to learn more.

We are also looking for OB-GYN partners to serve as a resource for patients seeking prenatal paternity testing. Please contact us for more information.

Locations  |  International  |  Partners  |  Technology  |  Resources  |  Privacy  |  Site Map