CONTACT SPRING VALLEY PEDIATRICS

4850 Massachusetts Ave, NW
2nd Floor
Washington DC 20016

202.966.5000
Fax 202.966.3830

Business office 202.966.1157

Office Hours

Monday-Friday

9:00am – 5:00pm

Weekends and Holidays (Open 365 days a year)

On weekends and holidays we see sick children in the office in the mornings as needed. Please call the office after 8:00 am on weekends and holidays to get an appointment for that day.

After Hours

At Spring Valley Pediatrics we pride ourselves on being readily accessible to our patients. We have a doctor on call and in the office every day of the year, including weekends and holidays.

  • Weekends and Holidays
    We see sick children in the office in the mornings as needed. Please call the office after 8:00 am at 202-966-5000 to get on the schedule for the day.
  • Evenings
    Call the main Spring Valley Pediatrics number 202-966-5000 and you will be forwarded to the answering service. If your call is an emergency, please be sure to communicate this to the operator. The on-call doctor will return your call. In the unlikely event that you have not heard back in 30 minutes, please call the answering service and ask that the doctor be paged again.
  • Doctor Call-In Hours
    Each doctor is available on weekday mornings by telephone. The doctor call-in times are a great way to reach your doctor directly to ask any questions that you may have about your child’s health. Please see the Doctor Call-In Hours section below for call-in times and numbers.

Doctor Call-In Hours

Each doctor is available on weekday mornings by telephone during their call-in hours. The doctor call-in hours are a great way to reach your doctor directly to ask any questions that you may have about your child’s health and to schedule sick visits. Please see the table below for call-in times and numbers. Please note that the call-in phone numbers will only reach the doctors during the stated call-in times. If you need to reach a doctor at any other time, please call 202-966-5000.

Doctor Morning Call-In Time Phone Number Call-In Days
Dr. Van Vleck 8:30 – 9:00 am 202-362-6289 Monday – Friday
Dr. Sexter 8:00 – 8:30 am 301-279-0280 Monday – Friday
Dr. Long 8:30 – 9:00 am 202-443-1616 Monday – Friday
Dr. Mamdouh 8:00 – 8:45 am 202-970-7087 Monday – Friday
Dr. Joseph 8:00 – 8:45 am 202-204-3382 Monday – Friday

Appointments

We offer same-day sick visits every day of the year, including weekends and holidays. For well-child visits and new patient appointments, call 202-966-5000 — we can typically schedule within a few weeks. Please arrive ten minutes before your scheduled appointment.

New Patients

Spring Valley Pediatrics is currently accepting new patients of all ages, from newborns through young adulthood.

If you are a new patient, you may complete the New Patient Forms online before your visit. We also encourage expectant parents to schedule a complimentary prenatal consultation before their baby arrives..

Well Child Visits

Call 202-966-5000 to schedule a well child visit with your doctor.

Sick Child Visits

Call 202-966-5000 or your doctor during their call-in hours to make all sick visit appointments.

Rescheduling

If you have made an appointment but are unable to keep it, please contact us at least 24 hours in advance.

Late for an Appointment

Please call and we will try to work you into the schedule later that same day.

No Show Policy

We understand that there are times when you must miss an appointment due to emergencies or obligations for work or family. However, when you do not call to cancel an appointment, you may be preventing another patient from getting much needed treatment. Conversely, the situation may arise where another patient fails to cancel and we are unable to schedule you for a visit, due to a seemingly “full” appointment book. We will charge a fee for any appointment that is not cancelled at least 24 hours in advance.

Due to the sensitive nature of most medical matters, we do not routinely use email to communicate with patients. Please feel free to call during normal business hours or during your doctor’s call-in time.

Schedule Your Complimentary Prenatal Consultation Or New Patient Meet-and-greet 

Expecting a baby? Or looking for a new pediatrician for your child? Schedule a complimentary, no-commitment visit with a Spring Valley Pediatrics physician. You’ll meet the doctor, tour the office, and get all your questions answered — before your first official appointment.

If you have questions for one of our doctors please call the practice at 202.966.5000.

Frequently Asked Questions

The main practice number is 202-966-5000. Call this number for appointments, new patient questions, and general assistance.

Call 202-966-5000 as early as possible. Same-day sick visits are available every day of the year, including weekends and holidays.

Each physician has a scheduled weekday morning call-in time with a direct number. The current physician call-in schedule is listed on the Contact and Office Hours pages.

For urgent concerns that cannot wait until the office reopens, established patients may contact the on-call physician through the practice’s after-hours answering service. Call 911 for a medical emergency.

Spring Valley Pediatrics is located at 4850 Massachusetts Avenue NW, Second Floor, Washington, DC 20016.

Yes. Expectant parents and families considering the practice may request a complimentary prenatal consultation or new patient meet-and-greet.

Contact Spring Valley Pediatrics

202-966-5000