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Clinical Diagnostic Laboratories is an affordable and efficient medical laboratory located in Northern Virginia in Sterling, VA and in Ashburn, VA just minutes from One Loudoun. At our facility, we strive to provide the highest possible quality testing for doctors, companies and organizations, and for individual patients. The DMV's Most Trusted Lab for Fast, Accurate, and Reliable Testing–Every Time From routine panels to advanced diagnostics, we deliver results you can trust with speed you can count on. About Us Schedule An Appointment Pre-Built Panels Ashburn 44355 Premier Plaza Suite 230, Ashburn, VA 20165 Sterling 2 Pidgeon Hill Dr. Suite 150, Sterling, VA 20165 Fairfax 8318 Arlington Blvd Suite 103, Fairfax, VA 22031 Schedule An Appointment OUR CURRENT HOURS ARE: Monday 9am - 3pm Tuesday 9am - 3pm Wednesday 9am - 3pm Thursday 9am - 3pm Friday 9am - 3pm Saturday 9am - 3pm* Sunday: Closed* *Appointments are highly recommended on Monday-Saturdays and major Holidays are by appointment only Please contact us ahead of time to verify if walk-ins are available. Schedule An Appointment ABOUT CLINICAL DIAGNOSTIC LABORATORIES Preferred Diagnostic Center in Loudoun County Our main goal is to provide an alternative testing facility for individuals: doctors, as well as hospitals that is affordable and convenient. What makes Clinical Diagnostics Laboratories different from the others? We provide excellent service with a personal and friendly touch. We have an on-call Director at the Lab who has a Ph.D. in Pathology. Our Full-time Technologist has over ten years of experience in the Medical Lab field. Clinical Diagnostic Laboratories has grown quickly throughout the area with respect to returning individuals, referrals and walk-ins because we treat our patients with dignity and respect. About Us “Clinical Diagnostic Laboratories is recognized as the TOP Diagnostic Lab for the Northern Virginia, Washington, DC and Maryland regions and is featured on the TOP Doctors Interviews which are seen on CNN Headline News, MSNBC, Oprah Winfrey Network, BRAVO and other networks” Services We Provide Our laboratory provides services for a variety of organizations and companies across a wide array of industries. Whether you're a private organization, government contractor, medical facility, small to large company, or something else entirely, we have the resources to help you achieve your desired goals. Please inquire for more information. View All Services No Insurance Required - Try Our Pre-Built Panels Our pre-built lab panels offer a fast, affordable way to check in on your health—no insurance or doctor’s order required. Whether you're monitoring your wellness, checking vitamin levels, or screening for common conditions, we've bundled the most important tests into convenient packages. Simple pricing, quick results, and expert local service make it easy to take control of your health on your terms. Order a Health Panel Let Us Come to You Our on-site services extend to Northern Virginia, Maryland, and Washington DC We care about our patients and understand that being home-bound or taking time out of your busy schedule can make diagnostic testing inconvenient, that is why Clinical Diagnostics Laboratories will come to you. Schedule An Appointment

The product page for the HPV cervical cancer test at Clinical Diagnostic Laboratories. HPV Self- Collection Test This test screens for high-risk strains of Human Papillomavirus (HPV), the leading cause of cervical cancer in women. At Clinical Diagnostic Laboratories, this screening is performed using a single, simple cervical swab collected by a licensed medical professional at our facility — no mailing kits, no confusion. Early detection of HPV is one of the most effective ways to prevent the progression of cervical disease, especially for women 25 and older. This test is ideal for those who want to take control of their reproductive health without waiting for a doctor’s referral or dealing with insurance hurdles. With secure results delivered in just a few days, you get clarity, confidence, and peace of mind — all on your terms. Detects high-risk HPV strains associated with cervical cancer No referral, copay, or insurance needed Discreet and professional in-lab collection Results delivered securely in 2–5 business days A smart step toward prevention and early care $75.00 Taxes will be calculated at checkout Buy Now

Learn why our practice no longer accepts PPO insurance or Anthem HealthKeepers, what this change means for your care, and how we continue to prioritize accessible, patient‑focused treatment. Dear Valued Patient, We understand that navigating lab testing and insurance coverage can be confusing, stressful, and sometimes frustrating. Many patients expect that medically necessary lab tests will be fully covered by their insurance, only to be surprised by bills or claim denials. We want to take a moment to explain why this happens, and what options are available to you. Why Insurance Coverage Can Be Complicated Insurance companies often control which laboratories they will reimburse, and many have exclusive agreements with specific “preferred” labs. Even if your doctor orders a test that is medically necessary and has a preferred laboratory they wish to send it to, insurance may refuse to pay if the lab performing it is not on the insurer’s approved list. In addition: Claims can be denied for administrative reasons, not because the test lacks medical necessity. In 2023, studies showed that nearly 1 in 5 claims across commercial plans were denied, with out-of-network labs denied more than one-third of the time. Negotiated rates may not reflect the true cost of testing, leaving smaller or independent labs out-of-network and limiting patient choice. Large insurers sometimes rely on high-volume national labs (like LabCorp or Quest), which must process thousands of samples and often face delays, lost specimens, or reporting outside the necessary timeframe . “Insurance networks and claim rules can make testing feel more like a barrier than a service. That’s why we focus on transparency and patient choice.” Your Options: Affordable, Transparent Self-Pay To make testing accessible and predictable, we offer affordable self-pay pricing. Because all of our testing is performed in-house, locally, we can provide: Lower prices than national lab chains Faster turnaround times Greater accuracy and reliability If you choose to pay out-of-pocket, we will provide a superbill containing everything your insurance company needs to process a claim. This includes: CPT codes for all tests performed Diagnosis codes Our provider identifiers (NPIs) Itemized charges and documentation We are happy to assist you with any additional paperwork or information your insurer may request. Even if the claim is initially denied, we can provide supporting documentation to help you appeal. “We want you to have control over your care — and the ability to submit claims to your insurance if you wish.” Why Our Lab is Different Unlike large national laboratories: Everything is processed locally, in-house, giving us control over quality and timing We avoid unnecessary shipping, which reduces risk of lost or misreported samples Our focus is on patient-centered service, not volume This means you get your results faster, accurately, and at a fraction of the cost. We Are Here to Help We understand this situation is not your fault, and it’s not your choice. Insurance networks, coverage rules, and reimbursement policies are complex — even for providers. Our commitment is simple: Provide high-quality testing you can trust Offer transparent, affordable pricing Support you in navigating insurance reimbursement whenever possible “With self-pay options and superbill support, you can access the testing you need without unnecessary delays or surprises.” Take Action Today We make it simple to access testing services on your terms: If you have questions or need guidance about insurance or billing, please contact our team — we are happy to walk you through every step. With care, The Team at Clinical Diagnostic Laboratories The Team at Clinical Diagnostic Laboratories View Our Self Pay Options >

Purchase a laboratory panel that will make staying healthy, easy. No insurance required. No doctor order needed. And the results are provided quickly. Explore Our Tests HPV Self-Collection Test $75.00 Screens for high-risk HPV types linked to cervical cancer* Helps detect infection before symptoms appear* Designed for women 25+, prioritizing routine cervical health No referral or insurance required — discreet and direct access Results delivered securely within 2–5 business days A proactive step in protecting long-term reproductive health* Buy Now *This panel is not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare provider for clinical follow-up. Women's Health Panel This panel supports hormone, thyroid, and nutrient balance—ideal for women experiencing fatigue, mood changes, or irregular cycles. It’s a simple, proactive way to monitor your health and feel your best, with easy-to-read results delivered securely in just a few days. $263.50 Buy Now Diabetes and Heart Health Panel This panel checks your long-term blood sugar levels and key cholesterol markers to help assess your risk for diabetes and heart disease. $139.00 Buy Now Complete Food Allergy Scan This test screens for common food and environmental allergens to help identify potential triggers behind skin, breathing, or digestive issues. With just a simple blood draw, you’ll gain clear insights to better manage allergies and improve your daily comfort. $155.00 Buy Now Complete STD Panel This panel tests for common STIs like chlamydia, gonorrhea, syphilis, and HIV using a quick blood sample collected at our lab—no swabs or mail-in kits required. It’s a confidential, hassle-free way to check your status for routine screenings, new relationships, or peace of mind. $285.00 Buy Now Women's Fertility Panel Our Women’s Fertility Panel offers a comprehensive look at the hormones and markers that influence reproductive health and ovulation. It’s ideal for those planning for pregnancy or wanting clarity about their cycle—no doctor’s order or insurance needed. To learn more, contact us using the button below. Contact Us Complete Respiratory Allergy Scan This test screens for common environmental allergens like pollen, pet dander, mold, and dust mites that may cause sneezing, congestion, or asthma-like symptoms. It’s performed with a simple blood draw and helps you identify triggers so you can breathe easier year-round. $288.00 Buy Now Men's General Health Panel This panel evaluates testosterone, cholesterol, blood sugar, and key nutrients like Vitamin D and B12 to give a clear picture of men’s energy, mood, heart health, and overall wellness. It's an easy, comprehensive way to stay on top of your health and performance. $241.00 Buy Now Cholesterol Test This comprehensive cholesterol test measures key heart health markers including HDL, LDL, triglycerides, total cholesterol, and Lipoprotein(a). It helps assess your risk for heart disease and provides a clear snapshot of your overall cardiovascular health. $95.00 Buy Now Men's Fertility Panel This panel includes a semen analysis to evaluate sperm count, movement, and overall quality—key factors that impact male fertility. It’s a simple, private test performed at our lab to help you take the first step in understanding your fertility status $85.00 Buy Now One-Day Fecal Immunochemical Test The InSure® ONE Fecal Immunochemical Test (FIT) is a simple, at-home screening that checks for hidden blood in your stool — an early warning sign of colon cancer or polyps. This one-day test makes it easy to stay proactive about your colorectal health. The kit can be mailed to you and a prepaid return envelope will be included. $35.50 Buy Now Frequently asked questions Online Tests - FAQs Do I need to schedule an appointment if I purchase the test online? Yes — once you place your order, you'll be prompted to schedule an appointment at one of our laboratory locations. Walk-ins are not permitted for prepaid panels to ensure proper time is set aside for your visit. Will I receive a kit in the mail? No — there is no kit mailed to your home. All testing is performed in our certified laboratory. After purchasing your panel, you'll simply come in for your scheduled blood draw. Do I need to bring anything to my appointment? Just bring a valid photo ID and your email confirmation. There’s no insurance information needed — we’ve already got you in the system. Do I need a doctor’s referral to order a test? Not at all. Our panels are available without a referral, prescription, or insurance. That’s part of what makes this process simple and accessible. How will I receive my results? Results are delivered securely via email in PDF format within 2–5 business days. You’ll be notified as soon as they’re ready. Can I use my HSA or FSA card? Yes — many patients successfully use HSA/FSA cards at checkout. Be sure to check with your plan provider for eligibility. Can I get reimbursed by my insurance? Yes — depending on your insurance policy, you may be eligible for reimbursement by submitting your receipt directly to your provider. However, reimbursement is not guaranteed. Some insurance plans do not cover specific tests or may require additional documentation before testing. We strongly recommend contacting your insurance provider in advance to understand your options, if you wish to be reimbursed. Is there a cancellation fee? Yes — if you cancel your order after purchasing online, a small cancellation fee of 3.4% will be applied to cover non-refundable transaction processing costs.

The product page for the men's health panel at Clinical Diagnostic Laboratories. Men's Health Panel Take charge of your health with this comprehensive blood test panel designed specifically for men. Whether you're focused on energy levels, heart health, hormone balance, or just getting a clearer picture of your overall wellness, this panel covers the essentials. Here’s what it checks — and why it matters: Complete Blood Count (CBC) – Measures your white and red blood cells to detect signs of infection, fatigue, or anemia. Comprehensive Metabolic Panel (CMP) – Evaluates your liver and kidney function, electrolytes, and blood sugar levels. Lipid Panel – Checks your cholesterol, including “good” (HDL) and “bad” (LDL) cholesterol, to assess your heart disease risk. Testosterone, Total – Measures your testosterone levels, which impact energy, muscle mass, mood, and sexual health. PSA, Total – Screens for signs of prostate issues, which is especially important as men age. Recommended for men over 50. Hemoglobin A1C – Provides a long-term view of your blood sugar levels to check for prediabetes or diabetes. Vitamin B12 – Plays a crucial role in the formation of red blood cells, the synthesis of DNA, and the maintenance of nerve cells. TSH (Thyroid-Stimulating Hormone) – Helps detect thyroid issues that can affect metabolism, weight, and energy. With just one visit to our lab, you’ll gain valuable insight into your health — without needing a doctor’s referral or insurance. $241.00 Taxes will be calculated at checkout Buy Now

Ordering information regarding Clozapine for Clinical Diagnostic Laboratories. Creatinine, Serum or Plasma Ordering Recommendation Screening test to evaluate kidney function. Methodology Quantitative Enzymatic Assay Performed Mon-Sat Reported Within 24 Hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube or serum separator tube. Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to a standard transport tube. (Min: 0.2 mL) Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Specimens obtained through catheters used to infuse hyperalimentation fluid. Specimens with potassium oxalate/sodium fluoride, citrate, or EDTA as anticoagulants. Remarks: Stability: After separation from cells: Ambient: 1 week; Refrigerated: 1 week; Frozen: 3 months Reference Interval By Report Interpretive Data Note Assay interference (negative) may be observed when high concentrations of N-acetylcysteine (NAC) are present. Negative interference has also been reported with NAPQI (an acetaminophen metabolite) but only with concentrations at or above those expected during acetaminophen overdose. CPT Code 82565 Components Component Test Code Component Chart Name LOINC 0020025 Creatinine, Serum or Plasma 2160-0 3004293 UH EGFR Aliases Blood Creatinine Serum Creatinine

Services for Organizations and Employers Available for All of Your Testing Needs! At our Medical Laboratory, we understand that testing your new employees might be difficult. We have you covered with our wide variety of comprehensive testing services, including COVID, Flu, Urine Drug Screenings, and much more. We make receiving results fast, efficient, and easy, so you can quickly and confidently move forward with your employee onboarding process. As a private lab, we strive to make the process of testing your employees fast, efficient, and easy. In order to provide the highest level of service to patients, organizations, and physicians we work with, we go the extra mile to make sure you have the results you need quickly and simply. For any questions or more information, contact us using the button below. CONTACT US

Clinical Diagnostic Laboratories provides fast, reliable lab testing for Skilled Nursing Facilities in the DMV area. From routine blood work to infectious disease panels, mobile phlebotomy, and customized testing solutions, we help nursing homes deliver better resident care. Why You Should Choose Clinical Diagnostic Laboratories FAST TURNAROUND TIMES Get results within 24–48 hours, helping your nursing home make faster, informed care decisions. CUSTOMIZED TESTING PANELS We design testing panels tailored to your residents’ unique needs, ensuring the right answers every time. MOBILE PHLEBOTOMY Our skilled team comes directly to your facility, reducing stress for residents and saving staff valuable time. HIPAA COMPLIANT We safeguard all patient information with the highest standards of security and confidentiality. REGULATORY COMPLIANCE CDL meets all federal and state regulations, giving your facility peace of mind and audit-ready confidence. DEDICATED ACCOUNT MANAGER Every partner receives a dedicated account manager to ensure smooth communication and personalized support. SIMPLE REPORTING Our clear, easy-to-read reports help your staff make confident care decisions without confusion. EASY TO ACCESS PATIENT PORTAL Residents and providers can securely view results anytime through our convenient online portal. Lab Testing Designed for Skilled Nursing Facilities To play, press and hold the enter key. To stop, release the enter key. Experience Expert Lab Testing Services Whether your Skilled Nursing Facility requires routine blood work or advanced infectious disease testing, Clinical Diagnostic Laboratories is here to support you. Contact us today to schedule a consultation or explore our full range of services. Contact Us

The product page for the general Women's Health Panel Clinical Diagnostic Laboratories. Women's Health Panel Feel your best, inside and out. This comprehensive blood panel is designed specifically for women to provide a clear picture of your overall health, hormone balance, and essential nutrients. Whether you’re managing symptoms, staying proactive, or just checking in — this panel helps you take control of your wellness. Here’s what it checks — and why it matters: Complete Blood Count (CBC) – Measures your white and red blood cells to check for signs of fatigue, infection, or anemia. Comprehensive Metabolic Panel (CMP) – Evaluates your liver and kidney function, blood sugar, and electrolyte balance. Lipid Panel – Assesses cholesterol levels, including “good” (HDL) and “bad” (LDL) cholesterol, to help understand your heart health. TSH (Thyroid-Stimulating Hormone) – Screens for thyroid issues that can affect weight, mood, and energy. T4, Total & T3, Free – Additional thyroid hormones that give a fuller view of thyroid function and metabolic health. Estradiol, LH, FSH – These hormones play a major role in reproductive health, menstrual cycles, fertility, and symptoms like hot flashes or irregular periods. Vitamin D – Checks for deficiency in this key vitamin that supports your bones, immune health, and mood. Ferritin – Measures iron storage in the body, which can help explain fatigue, hair thinning, or low energy. One blood draw — no referrals, no insurance required. Just clear answers, fast results, and the confidence to take control of your health. $263.50 Taxes will be calculated at checkout Buy Now

Ordering information regarding a Thyroid Stimulating Hormone test for Clinical Diagnostic Laboratories. Thyroid Stimulating Hormone (TSH) Ordering Recommendation Preferred test for initial screening and monitoring of thyroid function. Methodology Quantitative Electrochemiluminescent Immunoassay (ECLIA) Performed Mon-Sat Reported Within 24 hours New York DOH Approval Status This test is New York DOH approved. Specimen Required Patient Preparation: Collect: Plasma separator tube, or serum separator tube SST Specimen Preparation: Separate serum or plasma from cells ASAP or within 2 hours of collection. Allow serum specimen to clot completely at room temperature. Storage/Transport Temperature: Refrigerated. Unacceptable Conditions: Grossly hemolyzed specimens. Remarks: Stability: After separation from cells: Ambient: Calcium and CO2: 4 hours, All others: 24 hours; Refrigerated: 1 week; Frozen: 2 weeks Reference Interval Components Available Separately Reference Interval Interpretive Data Note CPT Code 84443 Components Component Test Code Component Chart Name LOINC 0070145 Thyroid Stimulating Hormone 3016-3 Aliases Thyrotropin TSH TSH, Pregnancy