We have the Pfizer COVID19 vaccines AND Flu shots available for our patients. Please call or click on "Book A Shot Appt" on the button below to schedule it. We provide Flu shots DAILY, but we provide the Pfizer vaccines on Mondays and Thursdays.

Make A Payment & Billing


Make A Payment:

* Patient Acct #:
* Amount:


Billing Company Contact information

If you have any questions regarding billing and payments, please contact our billing company, Physicians Billing Services. 6035 Burke Centre Pkwy Ste 390, Burke, VA 22015

Our billers are:
Joy Sievers and Jennifer Underwood


Phone numbers:
703-978-1196, extension 119 (Joy)
703-978-1196, extension 230 (Jennifer)


Insurance and Making Payments

The Allergy and Asthma Center accepts several different payments from several health care providers. If you have a deductible, coinsurance, and/or copay as part of your insurance policy, please be prepared to pay it at the time of your office visit.

The Allergy and Asthma Center uses an outside billing company for all patient billing issues.



Cancellation Policy

We do have a 24-hour cancellation policy. Please be considerate of other patients and our staff; if you have to cancel your appointment, please call our office at least 24 hours in advance of your appointment.


Financial Policy of Allergy and Asthma Center (Anita N. Wasan, MD, PLC)

When our practice sees you as a patient, it is our policy to bill your insurance company for both the office visit and any procedures administered. Your insurance company reimburses us according to the contracted rates. If you owe more than your copay, depending on your insurance policy, you may owe an additional fee for certain procedures due to your deductible or co-insurance.

If the insurance company tells us to bill you any expenses out of your deductible or co-insurance, you will receive a statement from us. These statements are nonnegotiable and are due within 30 days of receiving the notification.


Referral Policy

If you are a member of any HMO plans, it is your responsibility to have a current referral at the time of your appointment. If you have not obtained a referral, it is expired, or you did not bring it, you are responsible for all charges.


Prior to an Appointment

We do not guarantee participation, benefits, or coverage with insurance companies. It is the patient’s/parent’s responsibility to confirm our participation and benefits with their insurance company. Please call your insurance company to confirm our participation and your benefits prior to your appointment.