First Clinic

Walk-In Urgent Care

We understand accidents happen or you may become suddenly ill, that is why First Clinic is a walk-in clinic. Appointments are never required. You can walk in anytime and be seen quickly by an Urgent Care Practioner. Our center features low wait times for walk-ins means you won’t be waiting long to see a doctor and be on your way in no time.

First Clinic also offers Pediatric urgent care for children of all ages. From minor injuries to the flu, we treat a number of acute illnesses and injuries and provide a proper diagnosis of the problem at hand.

Onsite Lab

First Clinic specializes in laboratory testing at our location. We have a state-of-the-art laboratory that’s equipped to handle a number of different tasks including blood work, drug screening, pregnancy testing, Flu Test, strep throat testing and Urinalysis. These tests can be performed for either personal or employment purposes.

STD Testing is also available at First Clinic. Our center is able to test for the following: Chlamydia Genital Warts Gonorrhea Hepatitis B Hepatitis C Herpes HIV Syphilis

With no appointment necessary, you are more than welcome to walk-in and take advantage of one of our lab testing services in under an hour. Having a lab on site makes the delivery of the test results much faster giving you a positive piece of mind.

Primary Care

We offer primary care as one of our services. As general practitioners, we will do everything in our power to help Potomac families raise happy and healthy children. Some of the services that are included are:

Wellness checkups, Health promotion, Disease prevention, Allergy Testing, Cancer Screening, Mental health and solcial support, Patient medical education, Diagnosis and treatment of acute and chronic illnesses

First Clinic does not take this service lightly; we understand how critical this role can be in a child’s development. With that in mind we hold our providers to the highest medical standard and they will do their best to help your family in every way that they can..

Travel Medicine

Medical preparation for travel is increasingly important. Not only are there more serious health risks present around the world, but there is more available for prevention and treatment. Opportunities for prevention should not be overlooked by any traveler, regardless of destination.

First Clinic offers immunizations for many types of diseases and treatment for malaria, food and water borne diarrhea illness, and motion sickness.


First Clinic can perform your sports, camp, or school physicals in all our locationa. Often, schools, camp organizations, or sport organizations require a pre-participation physical before a child can participate. These measure the current health of the child as well as look for possible risk of injury though participation. They can also help address current existing conditions that need to be addressed.

About Us

Welcome to First Clinic Walk-in Clinic!

First Clinic is a full service walk-in clinic, urgent care and occupational healthcare practice serving the Potomac community since 2009. We provide convenient and affordable healthcare services for most non-life threatening medical conditions. We pride ourselves in our ability to deliver unprecedented medical care in a friendly and professional environment with little to no wait times. Our licensed clinitians and staff thoroughly evaluate each and every patient with time and care. Our Potomac location is conveniently open 7 days a week. We accept most insurance plans and Medicare. We also provide affordable rates for those who are uninsured. Our multilingual staff provide our compasionate, experienced and dedicated. For more information, please call 301-765-9255 to reach our central location.

Potomac Location Timing :
Monday - Friday Mornings 9.00 AM to 1.00 PM ( Lunch 1 - 2PM ) Afternoon 2.00 PM to 7.00 PM(Last Patient signed in at 6.30PM)
Saturday and Sunday 9.00 AM to 2.00 PM

Home Sleep Study

We offer Home Sleep Study to diagnose sleep apnea in the comfort of your home.

Approximately 3.5 million diagnostic sleep tests are ordered each year. An estimated 80% of these tests are appropriate for home sleep testing, where the patient is able to complete a sleep study in the comfort and convenience of his/her own home. Home sleep testing eliminates waiting periods and improves test completion rates: It can potentially take weeks to get an appointment at a sleep center; home sleep testing can happen next day or around your patient’s schedule Up to 15% of patients fail to make their appointment at a sleep center due to fear, inconvenience or delay in scheduling time; home testing minimizes those factors, eliminating travel time and the need for child care The natural at-home sleep environment facilitates a normal night’s sleep, improving the accuracy of test results.

Weight Management

If the conventional method of diet and exercise for losing weight isn’t working for you, then look no further. You may not have considered that what you need is a replenishment of important vitamins and minerals that your body is lacking. You may be in dire need of the essential vitamins and minerals that enable you to lose the fat and burn off the pounds.

How? The body requires nutrition and vitamins to stimulate the right hormones to function correctly so your body will let go of the fat stores it’s been holding onto. Don’t go under the knife, don’t suffer with extreme dieting, and certainly don’t starve yourself anymore. Lipotropic injections for weight loss may be just what you’re looking for. Walk in to learn more.

STD Screening

You might be wondering if you need a test for sexually transmitted diseases (STDs). You might be wondering if your partner needs one. Or you may simply be interested in learning more about STD testing. Whatever the reason, the more information you have, the better you can protect your sexual health. If you think you may have been exposed to an infection, getting tested for STDs is a great way to protect your sexual health. It's also a great way to protect the health of your sex partners.

We offer Urnine and Blood testing for HIV, Syphilis, Gonorrhea, Chlamydia, Herpes and Bacterial Vaginosis.

Drug Screening

This 12 Panel Urine Drug Test (10 Panel Plus MDMA) checks for the presence of 12 drug metabolites including: Amphetamines, Methamphetamines, Barbiturates, Benzodiazepines, Marijuana, Cocaine, Opiates, Phencyclidine, Methadone, Propoxyphene and MDMA (Ecstasy)

WHY DO I NEED IT? There are a lot of reasons why you might need a drug test.  Perhaps your employer has a drug testing policy, or maybe you’re being considered for a job and a pre‐employment drug test is needed.  Parents of teens may also want to consider this as part of ANY LAB TEST. Get tested. This is a quick and easy test, with most results delivered in 24 to 48 hours.

Hereditary Cancer Screening

A simple non-invasive genetic test can help determine your risk profile and enable you to take control of your health.

  • Do you have family members who have had Breast, Ovarian, Colorectal, Endometrial, Pancreatic, Prostate, Stomach or Skin Cancers ? You need to take control of your health.

Allergy Testing

Allergy testing can help confirm or rule out allergies and consequently reduce adverse reactions and limit unnecessary avoidance and medications.Correct allergy diagnosis, counseling and avoidance advice based on valid allergy test results is of utmost importance and can help reduce the incidence of symptoms, need for medications and improve quality of life. A healthcare provider can use the test results to identify the specific allergic triggers that may be contributing to the symptoms. Using this information, along with a physical examination and case history, the doctor can diagnose the cause of the symptoms and tailor treatments that will help the patient feel better. A negative result can help the doctor rule out allergies in order to consider other possibilities. Ruling out allergies is as important as confirming them to limit unnecessary avoidance, worry and negative social impact. NIH guidelines for the diagnosis and management of food allergy and the diagnosis and management of asthma recommend either allergy blood testing or skin prick testing to reliably determine allergic sensitization.

Here at First Clinic we do allergy blood test. A sample of the patient's blood is used for testing. Test results help determine if the patient has allergies. For babies and young children, a single needle stick for allergy blood testing is often more gentle than several skin tests.

Contact Us

Contact Us by Phone or Email if you need to schedule an early or late appointment.

Check our Clinic Timings for Walk-In.