For the busy YOU!


NEWS:  We are now members of Privia Medical Group

As of May 25, 2021 we are proud members of Privia Medical Group!

American Executive Health System is a proud member of Privia Medical Group. The best doctors in our community have joined together to form Privia Medical Group (PMG), a multi-specialty, high-performance medical group that puts patients first. Our physicians are united by the mission of providing better, more coordinated care for their patients.

To learn more about Privia Medical Group and find other Privia doctors, please visit our website.


Access your personal health information and test results, securely message your care team, and manage payments, all from one spot and at your convenience, 24/7.

  • See your provider's openings and schedule appointments.
  • Review prescription medications and request renewals.
  • View payment history and pay current invoices.


AEHS is here to serve your Primary, Urgent Care, and Cardiology needs.

COVID-19 Vaccine available.  Patients can request an appointment online or contact the clinic if needing assistance with filling out the application.  There are no out-of-pocket costs for COVID-19 vaccine.  

Booster or third dose of Pfizer vaccine is now administering for age 18 & above as per CDC guidelines.
Our clinics administer COVID-19 vaccine for individual age 12 and above only.  For individual younger than 12, please contact your local health department or pediatrician.

Drive-through COVID-19 Testing - we offer Rapid 15-Minute Antigen & PCR testing for acute infection.

In most cases, there are no out-of-pocket costs for COVID-19 testing.

Now accepting Cigna Connect health plan.


After check-in, patients may choose to wait in their cars and will be called when provider is ready.

Prefer not to come in? Our LIVECONNECT TELEMEDICINE service is now available for appointments. 

Telemedicine services are covered by Medicaid, Medicare and most insurances

without out-of-pocket costs during the COVID-19 pandemic period.

With support from Virginia Department of Health, American Executive Health System is administering COVID-19 vaccines to all residents.


Walk-In & Additional Services

Our Walk-In Medical Clinic and Urgent Care

are open 7-days a week, with extended hours and on-site X-ray and ultrasound facility. We treat acute medical problems that are not serious enough to require a trip to the emergency room, including:


Allergies - Animal & Insect Bites

Asthma - Back Pain - Bronchitis

Chest Pain - Colds - Flu

Dehydration - Diarrhea - Dizziness

Ear Infection

Headache - Heartburn

Minor Burns - Minor Wounds

Pink Eye - Rash - Sinus Infection

Skin Infection


Physical Exam - Immigration Exam
Employment Physical - Work Physical

Sports Physical - TB Testing

STD Testing -  IV Hydration

COVID-19 Testing


Primary Care In-Person & Online!

At American Executive Health System, you'll find that all your primary care needs are met with attention and care by our team of Board Certified physicians and physician assistants. 

Our focus is on prevention of diseases, good nutrition and regular exercise to keep you healthy year round.  We provide chronic care for patients with diabetes, high blood pressure, high cholesterol,

and more. 

New patients are accepted and same day appointments are usually available.  

We are proud to be

Providers for:

Carefirst (PCMH Plus)

Cigna Care Network Tier 1 Provider

 United Healthcare Premium

Aetna 2020 Aexcel provider

Aetna Innovation Health


It's never too early to start thinking
about your heart...

At AEHS, we are committed to providing comprehensive care to those with vascular diseases and other heart concerns. 

Cardiovascular Services

Care and Management of all types of 

heart disease for adult patients

Preventive Cardiology

Advanced Cholesterol Management

Advanced Hypertension Management

Post Cardiac Surgical Care

Peripheral Arterial

Vascular Disease (P.A.D.) Evaluation 



American Executive Health System - Home


Did You Know?...

Because we are credentialed as Primary Care Providers, we bill your urgent care visit as a primary care visit, which in many cases might result in a lower co-pay.  

Please check with your insurance for details. 


Mon-Fri:   8:00 AM - 7:00 PM 

Sat-Sun:  8:00 AM - 5:00 PM

Last walk-in accepted15 minutes before closing

Physical exam & primary care services available 7 days a week
Our urgent care visits are billed as primary care visits 

Annandale Primary Care & Urgent Care

Annandale Little River Shopping Center 

7432 Little River Turnpike
Annandale, VA 22003


Mon-Wed-Fri:   9:00 AM to 5:00 PM
Thu:  9:00 AM to 5:00 PM
Tue-Sat-Sun:   Closed

Last walk-in accepted 15 minutes before closing

Physical exam and primary care services available  

Telemedicine appointment available 7 days a week

* Please use Annandale location when Fairfax location is closed.


Pan Am Primary Care & Walk-in

Fairfax Pan Am Shopping Center 

3085 Nutley Street

Fairfax, VA 22031



Click to request a primary care, urgent care or cardiology appointment with AEHS providers

(not for COVID-19 registration)

Click below to request an appointment at AEHS


Please send only one request per patient



With LIVE CONNECT Telemedicine Service, our patients can have an online face-to-face consultation with one of our providers, and receive referrals and prescriptions, using just an iPad,

smart phone or a computer.

CLICK to CONNECT WITH ONE OF OUR DOCTORS ONLINE using your smartphone, tablet or computer through our LIVE CONNECT Telemedicine Service!


Our health care group can provide your corporation with employment physicals, work place injury evaluation and treatment, travel immunization recommendation, specialist referrals and employment physical exams. We are in-network with most insurances and health plans.

We look forward to being a valuable resource for your organization!

For Corporate Services Inquiries, please contact the

practice manager at (703) 658-7060

Our Services

  • Employment physical and           screenings

  • Workplace injury evaluation

      and treatment

  • Employment Physical Exam

  • Travel Medicine

  • Travel Immunizations

  • General Medical Exam

  • TB Testing 

  • COVID-19 Testing

  • On-site X-rays & Ultrasounds

Benefits We Offer

  • Flexible monthly invoicing

  • Detailed report of services         performed

  • Detailed charges for ease

      of accounting

  • Open Access: Your staff can

      be seen within the same or 

      next business day, 7-days a

      week, minimizing lost


  • Corporate contract cost


  • LiveConnect Telemedicine 

      service for onsite, same day


Why Choose AEHS?

  • Modern, well equipped, 

      well-lit location and 


  • Electronic medical records 

      (EMR) with drug interaction 

      checker and electronic


  • 2 convenient office 

      locations in Fairfax and


  • LiveConnect Telemedicine

      service so your employees

      can be seen without leaving

      the office

  • Established since 2005

  • BBB A+ Rating


Van-Anh Nguyen, MD

Dr. Van-Anh Nguyen is a native of Vienna, Virginia and attended James Madison High School where she graduated as class salutatorian. Dr. Nguyen attended George Mason University on full scholarship as a George Mason Scholar, graduating with a B.S. in Biology. She received her Doctorate in Medicine from the Virginia Commonwealth University School of Medicine in Richmond, VA, and completed her family practice residency at the University of Maryland's Family Medicine Program in Baltimore, MD.

Prior to joining American Executive Health System in 2008, Dr. Nguyen worked at NOVA Medical and Urgent Care Center in Ashburn, VA. She is a member of the American Academy of Family Medicine and the American Medical Association. Dr. Nguyen is board certified in Family Medicine. Dr. Nguyen has been nominated as a "Rising Star Physician" in the May 2013 edition of the Washington Post Magazine.

Dr. Nguyen enjoys building long-term relationships with her patients. Her goal is to provide quality, comprehensive, and compassionate medical care. She believes in patient education, preventative care, and in-depth evaluation and treatment. Dr. Nguyen strives to actively involve her patients in their medical care and decision-making process to promote improved quality of life, health, and wellness. Dr. Nguyen looks forward to caring for you and your family.

Roger Ewonkem, MD

Dr. Roger Ewonkem is a United States combat veteran and a naturalized citizen born in Cameroon. He obtained his Doctorate in Medicine from the University of Pavia school of medicine Italy and completed his Family Medicine residency at the University of Stony Brook Family medicine program in Long Island New York.

Prior to joining American Executive Health System, Dr. Ewonkem worked at Delaware Valley Hospital New York. He then joined the US Air Force where he served military service members and their families at home and abroad.

He is board certified in family medicine. He is a member of the American Academy of family medicine and the Uniform Services Academy of Family Physicians. Dr. Ewonkem was awarded the US Army Achievement Medal for Heroism with Mass Casualty Intervention in 2010. He also received the Lloyd Cutler Award for Excellence in Family Medicine in June 2004.

Dr. Ewonkem is fluent in Italian, French and Mbo. He looks forward to continuing his compassionate and comprehensive medical care in the community.

Thien M. Do, MD, FACC

Dr. Thien Do attended medical school at the George Washington University School of Medicine in Washington, DC and completed his internal medicine residency at William Beaumont Army Medical Center in Texas. He completed his cardiology fellowship with the U.S. Army at Brooke Army Medical Center in San Antonio, Texas and went on to serve as a staff cardiologist at Walter Reed Army Medical Center in Washington, DC and at Malcolm Grow Hospital with Andrews Air Force Base with the rank of Major.

While at Malcolm Grow Hospital, he served as the director of the Coronary Care Unit, the Intermediate Care Unit, Pacemaker Implantation Service and as the director of the Non-invasive Lab. He also served as an assistant teaching professor at the Uniformed Services University of the Health Sciences as well as medical consultant for the NASA Mishaps Investigation Board. He holds a fellow status at the American College of Cardiology (FACC), and is an active staff member at the INOVA Fairfax Hospital.

Dr. Do also serves as director of the World Health Ambassador program which sends medical and dental teams abroad to treat residents in underserved countries.

WHA Logo


Employment Opportunities

American Executive Health System provides a unique and exciting work environment where healthcare professionals can practice their skills with excellence. By placing the needs of the patient first, we aim to provide the highest quality of care. At American Executive Health System, you'll discover a culture of teamwork, professionalism and mutual respect. We support professional development, expansion of skills and opportunities for all our staff to reach the highest levels of personal potential and team success.  

Complete this form to let us know your interest in joining the American Executive Health System Team!  

About Privia Medical Group

Our practice is a proud member of Privia Medical Group - a physician-led, multi-speciality, national medical group. The nation’s top primary care physicians and specialists came together to form Privia Medical Group and share in the mission of providing better, more coordinated care to patients.

Our group focuses on taking accountability for the health and wellness of the patients we serve. We use some of the latest advances in medicine to help our patients remain healthy and better manage disease by offering our patients access to innovative health management technologies, proactive team-based care, and an evidenced-based, patient-centered approach.

Here’s what sets Privia Medical Group apart from traditional practices:

Top Doctors

  • Nationally recognized top physicians and healthcare professionals
  • Physician-led, high-performance medical group
  • Unhurried, comprehensive visits, with time to develop the right care plan
  • Personalized care that exceeds your expectations

Proactive Care

  • Collaborative, team-based medical group
  • Staffed with Health Coaches, Nurse Educators, Pharmacists, and Care Managers
  • Same-day/next-day appointments available
  • Care reminders and alerts
  • Check ins with clinical experts between your office visits

Convenient Technology

  • Book appointments and renew prescriptions online
  • Send and receive secure messages with your care team
  • Secure access to electronic medical records
  • Pay your invoices by credit card, securely and conveniently

Security and Privacy of Patient Information

We work diligently to ensure our patients’ information remains confidential and secure. Not only is our team trained in modern privacy standards (such as HIPAA and PCI compliance), but we also keep your information secure with Secure Socket Layer (SSL) data encryption, firewalls, secure servers (including 24/7 surveillance and biometric access), and many more measures to ensure your information won’t fall into the wrong hands.

To learn more about Privia Medical Group and find other Privia doctors, please visit our website.


Printable versions of our forms can be found at the links below. Please print, fill out and bring all needed forms with you to your next appointment.

Patient Forms

Authorization for Release of Medical Information (PDF) - Allows patients to authorize the disclosure of their health information to a designated individual, company, agency, or facility. Autorización De HIPAA Para Divulgar Información Del Paciente

Authorization and Consent for Treatment (PDF) - All patients must provide their consent for treatment, communications (calls, emails, and text messaging), and agreement of financial responsibility. Autorización y Consentimiento Para el Tratamiento

Preferred Contacts (PDF) - Patients are encouraged to complete and return the Preferred Contacts Form but it is not required. Contactos Preferidos

Virtual Visit Policy (PDF) - This policy describes the process for the documentation, maintenance, and transmission of information using virtual visit technology.

Office Policies

Financial Policy (PDF) - This form advises patients of their complete financial responsibility for all medical services received without regard to insurance eligibility or coverage determinations.

Notice of Privacy Practices (PDF) - Describes how health information about you (as a patient of this Care Center) may be used and disclosed, and how you can get access to your individually identifiable health information. Please review this notice carefully. Aviso de prácticas de privacidad (PDF)

HIPAA Privacy Notice


PLEASE NOTE: We are now using the PRIVIA Patient LOG-IN PORTAL.

You can still access the eClinicalWorks Healo patient portal (our former patient portal) below for a limited time. This portal will phase out by the end of August, to give our patients time to migrate to the new PRIVIA (Athena) Patient Portal.

Language Services

COVID-19 Vaccination Information

Pfizer vaccine fact sheet

CDC Prevaccination Checklist               Pfizer vaccine consent form

What to expect after getting COVID-19 vaccine & V-safe


    • For people 18 and older who are at least six months past their second shot of the two-dose regimen.
    • Adult who received the single-dose Johnson & Johnson is eligible for a booster two months after vaccination. 

There is no out-of-pocket cost for COVID-19 vaccination for patients as we bill insurance plans and government uninsured programs.  Remember to take a photo of the front and back of your vaccination card for your record. 

There is a fee for replacement card. 

Frequently Asked Questions

1. Will you accept my insurance?

    For your convenience, we participate with the following plans:


    Aetna Aexcel Performance Network

    Aetna Innovation Health
    Alliance Amerigroup
    Blue Cross Blue Shield

    CareFirst BCBS
    Cigna Care Network

    Cigna Connect (for primary care & urgent care services)

    Cigna Tier 1 Provider Network



    NPN (National Provider Network)


    Southern Health Network



    United Healthcare/MDIPA
    United Healthcare Premium Provider Network


    Medicare Advantage Plans

    AARP MedicareComplete Plan 1 & 2

    Aetna Medicare Prime Plan

    Aetna Medicare Choice Plan

    Anthem MediBlue Plus

    Anthem MediBlue Dual Advantage


    Innovation Health Medicare Connection Plan

    Innovation Health Medicare Voyayer Plan (PPO)

    United Healthcare Dual Complete 

    United Healthcare DualComplete RP

    VA Premier Advantage Elite


    Anthem Healthkeeper Plus 

    Aetna Better Health of Virginia 

    First Health Medicaid 
    Magellan Complete Care of Virginia

    United Healthcare Community Plan

    Virginia Premier 

      For delivering quality and efficient medical services, our practice has been designated as preferred providers for the following networks: Carefirst PCMH, Innovation Health, Cigna Care Tier 1, United HealthCare Premium and Aetna Aexcel.

    For patients with HMO plans of the listed insurance above, please bring referrals from your primary care physicians.

    American Executive Health System is credentialed as a primary care facility with most insurance companies. If you are an HMO or Tricare Prime patient, your insurance company will require a referral and you will be billed for a primary care visit and NOT as an urgent care visit.  Your copay is sometime lower if billed for a primary care visit than an urgent care visit.  You are responsible for payment of any copay and/or balances at time of visit.  

    2. How much will it cost if I don't have insurance?

    If you are uninsured or have a high deductible plan, we offer affordable selfpay rate for walk-in/urgent care. Any additional in-house test/ X-ray will be additional cost. Please contact the office regarding self-pay rate to see our cardiologists.

    A $50 fee is charged for any returned and unpaid check.

    3. Appointment No-Shows and Cancellation

    In order to provide quality health care to our patients, our office policy is enforcing a 48-hour cancellation period.

    Charges incurred will be $50 for Primary and Urgent Care no-shows, and can be up to $300 for Cardiology Services.We ask that you notify our clinic at least 48 hours in advance of any appointment cancellation or rescheduling to avoid incurring unnecessary charges to your account.

    A $50 fee is charged for any returned and unpaid check.

    4. Do I have to make an appointment in advance?

    Appointments are recommended but not required. Same day appointments are offered every clinic day. Please call early in the day to check for availability of these appointment slots.

    5. Notice of change of personal information

    Change of personal information- If you have recently moved or changed your contact information such as address, phone number, or insurance, please inform the receptionist.

    6. Prescription refills

    We are pleased to offer electronic prescription refills. We ask that your prescription refill requests be called to your pharmacy to ensure that correct medication and dosage will be reordered for you. Your pharmacy will handle the rest by faxing or electronically sending us a refill request. Please allow up to 72 hours for completion of prescription refills. To expedite future refills, please notify our staff of your pharmacy name and address so that this information can be entered into your electronic medical record.

    7. Phone messages after clinic hours

    When leaving a message after-clinic hours, we ask that you do not leave any non-urgent messages. Please call back during the regular office hours for these non-urgent matters. In case of an emergency, please dial 911 or go to the nearest ER for emergency care. Otherwise follow the prompt instructions and one of our physicians will call you back shortly.

    8. Lab test results

    If you have not heard from our clinic regarding your lab or imaging results within 5 business days, please call our office and we will be glad to assist you.

    9. School / Sports physical exams

    School Physical - These should be scheduled in advance of the beginning of school in order for completion of forms and any necessary lab tests or immunizations. Please bring with you the appropriate school form to be filled. If you are new to the clinic, please bring with you your previous immunization record.

    Sports Physical - These should be scheduled in advance of the required deadline in order for completion of forms and any necessary lab tests or specialist evaluation. Please bring with you the appropriate sports physical form if provided to you by your school.

    10. Medical records

    Record copying protocol and fee: Please allow up to 2 weeks for our office to make a copy of your medical record.

    Call our office to inquire about copying fee.

    11. Form requests

    Some forms are quite lengthy and require additional physician time for completion. There is a $20 to $40 fee for form requests. Please allow sufficient time for our physicians to complete your forms.

    12. Follow-up from emergency room or hospital visits

    On your follow-up visit with the physician, please bring with you your hospital medical record including discharge instructions. This will allow for verification of your diagnosis, lab results, imaging results, and prescribed medications resulting from your hospital visit.

    Please note: 

    A $50 fee will be charged for any returned and unpaid check for any clinic visit.