Diagnostic Lab

Laboratory Notice Regarding COVID-19

You are a valued part of our Greenwood Diagnostic family, and we remain dedicated to you and your patients.

We are accepting specimens on our normal schedule and are not experiencing any testing delays at this time. We will keep you updated on any changes as we navigate these uncertain times together.

As clinic schedules are modified and more patients are being seen via telehealth, we can continue to serve your genetic testing needs with the following resources:

If you have an urgent request, please call the lab at 1-800-473-9411.

Thank you for your continued support of Greenwood Diagnostic Labs.


The diagnostic lab at Greenwood Genetic Center is named to honor the Center’s co-founder, Harold A. Taylor. The facility is made of three separate, but integrated laboratories: the biochemical lab, the cytogenetic lab and the molecular lab. All three laboratories use technologies to help physicians, patients and their families to better understand a disorder and the available treatments for it. The Greenwood Diagnostic Labs utilize traditional and cutting-edge tools such as next-generation sequencing, multiple array CGH platforms and expanding enzyme analysis testing to provide the most accurate and reliable diagnoses available.

Lab requisitions must accompany all samples, and they should be completed by the referring physician or other healthcare provider. The process of ordering tests has been streamlined with our downloadable requisition forms and test finder. A complete list of test CPT Codes and Prices is also available. The test finder lists over 300 tests and general information for each test including:

  • Methodology
  • Specimen requirements
  • Turnaround time
  • CPT Codes
  • Costs

Laboratory faculty and staff are an invaluable part of GGC’s patient care team. They work closely with clinicians to facilitate testing and support genetic counselors and referring physicians with the information they need to provide answers to their patients.

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Biochemical Lab

Biochemical Lab

The Biochemical Laboratory of the Greenwood Genetic Center provides diagnostic and screening tests for a variety of inherited metabolic disorders including:

● Inborn errors of metabolism
● Lysosomal storage diseases
● Mucolipidoses

Cytogenetics Lab

Cytogenetics Lab

The Cytogenetics Laboratory provides the analysis necessary to detect constitutional chromosomal aberrations and abnormalities related to hematological malignancies. Technologies and analyses at the Cytogenetics lab include:

● High resolution karyotyping
● FISH analysis
● Array CGH

Molecular Lab

Molecular Lab

The Molecular Diagnostic Laboratory offers the latest technologies to diagnose a wide variety of disorders from rare disease to more common conditions including:

● Next-generation sequencing
● Sanger sequencing
● Methylation analysis
● Triplet repeat testing

The molecular lab can also provide prenatal diagnosis for many genetic disorders.

Meet the Shenal Family

Meet the Shenal Family

Our daughter, Ryleigh, was diagnosed with a rare chromosomal deletion shortly after she was born in 2010. Since we received her diagnosis, the Greenwood Genetic Center has become part of our family. They made certain that we did not feel alone, and they continue to provide ongoing, compassionate care for our child. The impact they have had on our family and others across the globe everyday is immeasurable. We can't imagine walking this journey without their...

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