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DNA testing collection site in Washington, District of Columbia

DNA Testing in Washington, District of Columbia - 1133 21st St Nw

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Location

TestMark DNA - Washington

1133 21st St Nw

Washington, DC 20036

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Hours of Operation

Monday7:30 AM - 4:30 PM
Tuesday7:30 AM - 4:30 PM
Wednesday7:30 AM - 4:30 PM
Thursday7:30 AM - 4:30 PM
Friday7:30 AM - 4:30 PM
SaturdayClosed
SundayClosed

Location Map

In Washington, DC, TestMark DNA collects samples at 1133 21st Street NW, Building 2 of Lafayette Centre, on the east side of 21st Street just north of L Street. Foggy Bottom-GWU, Farragut North, Farragut West and Dupont Circle Metro stations are all within about half a mile.

Building 2 of Lafayette Centre, the three-building office complex filling the block between L and M Streets and 20th and 21st Streets NW, is where TestMark DNA collects samples in Washington, at 1133 21st Street NW. The building stands on the east side of 21st Street, a few steps north of L Street, in the Golden Triangle business district. It is already a medical address: MedStar Health's Lafayette Centre practices run primary care, specialty clinics and laboratory services from Building 2, and the DC Chamber of Commerce is a tenant as well. George Washington University Hospital, at 900 23rd Street NW, is about a third of a mile away. For DNA testing in Washington, DC, give the 21st Street number rather than the complex name, because Lafayette Centre spans three buildings.

Four Metrorail stations are within half a mile, straight-line. Foggy Bottom-GWU is the closest at roughly a third of a mile, with Farragut North, Farragut West and Dupont Circle each just under half a mile. Farragut North and Dupont Circle are on the Red Line; Foggy Bottom-GWU and Farragut West serve the Blue, Orange and Silver Lines. When a legal result is headed for a parentage or child support case, the District's Family Court works out of the Moultrie Courthouse at 500 Indiana Avenue NW, and the Attorney General's Child Support Services Division is at 400 6th Street NW.

In Washington, DC, TestMark DNA is at 1133 21st Street Northwest, in Building 2 of Lafayette Centre near 21st and L Streets.

About this Washington collection site

How It Works

1

Call for a Free Consultation

Call our team and we'll walk you through the right test, answer your questions, and confirm your nearest location.

(866) 702-7644
2

Visit Your Local Collection Site

Visit 1133 21st St Nw, Washington, DC 20036. A quick, painless cheek swab is all that is needed.

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3

Get Results in 3-5 Business Days

Receive your confidential results delivered securely by email. Results are accurate, private, and legally defensible.

What to Expect at Your Appointment

DNA testing at our Washington, District of Columbia collection site is straightforward, painless, and typically takes less than 30 minutes. Here is what to know before you visit 1133 21st St Nw.

Bring a Government-Issued ID

Adults bring a driver's license, state ID, or passport. Children under 18 do not need ID. A birth certificate is helpful for legal tests but not required for personal tests.

The Sample Is a Painless Cheek Swab

Collection takes about a minute. A trained technician rubs a soft cotton swab on the inside of the cheek for each tested party. No needles, no blood, no fasting required.

Plan for 15–30 Minutes on Site

Most visits to 1133 21st St Nw in Washington take under 30 minutes from check-in through sample collection, including the chain-of-custody paperwork completed in person.

Your Collection Is Scheduled by TestMark DNA

Collection sites in Washington, District of Columbia handle chain-of-custody (legal) tests ordered through TestMark DNA. We recommend scheduling your visit so everyone arrives prepared: call (866) 702-7644 and we'll confirm the right test, book your collection, and tell you what ID to bring.

Children Can Be Tested at Any Age

Infants, toddlers, and minors are all eligible. The cheek swab is the same regardless of age. For legal tests involving a minor, the custodial parent or legal guardian must be present to sign the chain-of-custody form.

Results Arrive in 3–5 Business Days

Once all samples are received at the accredited laboratory, standard turnaround is 3 to 5 business days. Results are delivered confidentially by encrypted email or secure portal. They are never released over the phone.

Questions before you visit? Call (866) 702-7644 for a free consultation.

Pricing & Payment

DNA test pricing in Washington, District of Columbia depends on the specific test you need. Call TestMark DNA for a free consultation. We will confirm the exact price for your situation before you visit the collection site.

Pricing Varies by Test Type

Paternity, maternity, sibling, grandparent, immigration, and home kit tests are each priced differently. Legal (court-admissible) tests cost more than personal-knowledge tests because they include chain-of-custody documentation.

Not Covered by Health Insurance

DNA paternity and relationship testing is classified as a non-medical test and is not reimbursed by health insurance plans. Payment is collected directly at the time of testing.

Free Consultation

We walk you through pricing on the phone before you commit. There is no charge to call, no charge to ask questions, and no obligation to book a test after the consultation.

Discounts for Multiple Parties

Tests that involve additional parties (for example, a paternity test that also includes the mother, or sibling tests with multiple siblings) often qualify for a per-person discount. Confirm by phone before your appointment.

Get an exact quote for your test in under five minutes. Call (866) 702-7644.

Frequently Asked Questions

Where can I get a DNA paternity test in Washington, District of Columbia?

TestMark DNA has a certified collection site at 1133 21st St Nw, Washington, District of Columbia 20036. We schedule chain-of-custody (legal) collections here for you, and results are typically returned in 3 to 5 business days.

Do I need a doctor's order or court order for DNA testing in District of Columbia?

A doctor's order is generally not required. However, if you are a New York State resident, a prescription, court order, or ordering by other authorized persons is required by state law for all DNA identity or relationship tests.

Can DNA testing be done without the mother present?

Yes. A DNA paternity test can be performed without a sample from the child's biological mother. Including the mother's sample is preferred when possible as it improves accuracy.

How long do DNA test results take near Washington?

Results for a standard DNA paternity test are typically returned within 3 to 5 business days from when all samples are received at the laboratory.

Is DNA testing confidential?

Yes. All samples are packaged in tamper-proof bags and processed at an accredited laboratory with restricted access. Results are shared only with authorized individuals and are never released over the phone.

What type of sample is collected for a DNA test?

The standard sample is a buccal swab - a cotton swab rubbed gently inside the inner cheek. It is painless, non-invasive, and provides the same accuracy as a blood sample.

Will DNA test results be accepted in court?

Results from a legal DNA paternity test performed at an accredited facility may be accepted in court, provided the chain-of-custody form was completed according to laboratory guidelines. Non-legal test results are not intended for court use.

Is DNA paternity testing covered by health insurance?

DNA paternity testing is considered a non-medical test and is not covered by health insurance plans.

Which Metro station is closest to 1133 21st Street NW?

Foggy Bottom-GWU, on the Blue, Orange and Silver Lines, is about a third of a mile away in a straight line. Farragut North and Dupont Circle on the Red Line, and Farragut West, are each just under half a mile.
LEGAL

Legal DNA Test

  • Court-admissible results
  • Chain-of-custody documentation
  • Government ID required at collection
  • Results accepted in legal proceedings
  • Collected at certified site only
PERSONAL

Personal DNA Test

  • For personal knowledge only
  • No chain of custody required
  • No ID required
  • Results not for legal use
  • Can collect samples at home

Both options available - call to confirm which is right for your situation.

Not sure which test you need? Call for a Free Consultation - (866) 702-7644

Service Area

This Washington, District of Columbia collection site serves patients arriving from 20036 and the surrounding ZIP codes listed below. If you are closer to a neighboring city, our nearby TestMark DNA locations may be a shorter drive.

ZIP Codes Served from This Site

  • 20006
  • 20007
  • 20010
  • 20017
  • 20036
  • 20037
  • 20737
  • 20745
  • 20782
  • 20815
  • 20817
  • 20901
  • 20902
  • 22201
  • 22304

We schedule collections for customers from any ZIP code. The list above reflects the nearest service area for Washington.

Other Nearby Cities Served

Each link goes to the city hub with all TestMark DNA collection sites available in that city.

Nearby Locations

Get DNA testing in Washington started today

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Call for a Free Consultation - (866) 702-7644

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