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Dr. Gregory Sibley, MD

Dr. Gregory Sibley, MD

Radiation Oncology*
30+ years of experience

Dr. Gregory Sibley, MD is a radiation oncologist in Fairfax, VA and has over 30 years of experience in the medical field. He graduated from University of Michigan Medical School in 1990. He is affiliated with Shenandoah Memorial Hospital. He is accepting new patients and telehealth appointments.

5 Star Rating
Based on 34 reviews 5 Star Rating (34 reviews)

Practice

8613 Route 29 Ste 100 Fairfax, VA 22031
Telehealth available

Make an Appointment

(571) 350-8400

At a Glance

  • Area of Expertise
    Dr. Sibley specializes in the area of Radiation Oncology. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Trustworthy
    Patients said this doctor is trustworthy. • See reviews
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Dr. Sibley's Reviews

Likelihood to recommend Dr. Sibley

5.0

34 ratings, 26 with a written review
5 Star
100%
100%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
0%
0%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Mar 03, 2025
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Face to face with presentation of CT was essential – Feb 23, 2025
We appreciate your feedback! We are pleased to...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
John F Smith Jr – Jan 10, 2025
We are happy to hear you had such a positive...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Dec 22, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Ken – Dec 20, 2024
We are happy to hear you had such a positive...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Dec 12, 2024
We are happy to hear you had such a positive...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Oct 17, 2024
×Post a ResponseAre you Dr. Gregory Sibley, MD?
Telehealth
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Sep 07, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Sep 01, 2024
We appreciate your feedback! We are pleased to...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
No results
What could be improved
No results
Helpful
Barry Allbright – Aug 17, 2024
We are happy to hear you had such a positive...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
  • Didn't explain conditions well
Helpful
Aug 11, 2024
We appreciate your feedback! We are pleased to...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Steve Slaughter – Aug 08, 2024
We are happy to hear you had a positive...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Pat L. – Aug 06, 2024
Thank you for leaving a kind and thoughtful...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jul 21, 2024
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jul 19, 2024
Thank you for taking the time to leave a kind...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
No results
Helpful
DJ – Jun 28, 2024
We appreciate your feedback, and we are pleased...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jun 27, 2024
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Michele Cappelle – Jun 12, 2024
Your kind words about Dr. Sibley are much...Read More
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jun 06, 2024
×Post a ResponseAre you Dr. Gregory Sibley, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Cheryl Jesse – May 22, 2024
×Post a ResponseAre you Dr. Gregory Sibley, MD?

Leave a review

How was your experience with Dr. Sibley?

Know Before You Go

About Me

Watch Dr. Sibley's Video

care philosophy

``I place a high premium on customer service, and that starts with me. I insist that patients are seen on time, and that wait times for consultations and treatment start times are as short as possible. We are dealing with cancer, after all. At...read more

biography

Dr. Gregory S. Sibley joins Virginia Cancer Specialists after serving as Radiation Oncologist and chair of the Cancer Committee at Sibley Memorial Hospital in Washington, D.C. for 14 years.  Throughout his career, Dr. Sibley has focused on...read more

  • Radiation Oncology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • University Of Chicago

    Residency Hospital, 1995

  • University Of Chicago Medicine

    Fellowship Hospital, 1995

  • St. Joseph Mercy Hospital

    Internship Hospital, 1991

  • University Of Michigan Medical School

    Medical School, 1990

  • University Of Michigan

    Undergraduate School, 1989
American Board of Medical Specialties®
American Board of Radiology®
- 
Radiation Oncology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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Focus on Breast Cancer

Locations

Practice

Office8613 Route 29 Ste 100 Fairfax, VA 22031
1
Office1701 N George Mason Dr Ste G101 Arlington, VA 22205
2
Office3040 Williams Dr Ste 100 Fairfax, VA 22031
3

Affiliated Hospitals

  • Shenandoah Memorial Hospital

    759 S Main St
    Woodstock, VA 22664

    How patients felt about the care they received at this hospital.

    91%
    Patients said they were given information about recovering at home

    3% higher than the national average

    82%
    Patients said that nurses always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality