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Dr. Shannon O'Connor, MD

Dr. Shannon O'Connor, MD

Medical Oncology*

Dr. Shannon O'Connor, MD is a medical oncologist in Rockville, MD. Dr. O'Connor has extensive experience in Breast Neoplasms and Gastrointestinal Neoplasms. She is affiliated with Adventist HealthCare Shady Grove Medical Center. She is accepting new patients and telehealth appointments.

4.6 Star Rating
Based on 74 reviews 4.6 Star Rating (74 reviews)

Practice

9905 Medical Center Dr Ste 200 Rockville, MD 20850
Telehealth available

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Dr. O'Connor's Reviews

Likelihood to recommend Dr. O'Connor

4.6

74 ratings, 58 with a written review
5 Star
85%
85%
4 Star
4%
4%
3 Star
1%
1%
2 Star
3%
3%
1 Star
7%
7%

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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
Atsede – Apr 12, 2025
We appreciate your positive feedback! It makes us...Read More
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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 27, 2025
Thank you for taking the time to share your...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Mar 23, 2025
×Post a ResponseAre you Dr. Shannon O'Connor, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Feb 06, 2025
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Jan 29, 2025
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Teresa W. Jaeger – Oct 25, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
EG – Oct 04, 2024
×Post a ResponseAre you Dr. Shannon O'Connor, 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 02, 2024
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Tom S. – Aug 23, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
What could be improved
No results
Helpful
Sheryl Raskin – Jun 25, 2024
Thank you for taking the time to share your...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Olha – Jun 25, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jun 24, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
May 31, 2024
Thank you for taking the time to share your...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
May 02, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Apr 24, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, MD?
What went well
  • Appointment wasn't rushed
What could be improved
  • I didn't feel respected
  • Difficult to schedule appointment
  • Staff wasn't friendly
Helpful
tired cancer patient – Apr 05, 2024
Thank you for bringing this to our attention. We...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Mar 29, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
Feb 22, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, 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
James Harding – Feb 16, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. Shannon O'Connor, MD?
What went well
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
Helpful
Dan Ward – Feb 14, 2024
Thank you for taking the time to leave a review....Read More
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About Me

biography

Dr. Shannon O'Connor, MD is a medical oncologist in Rockville, MD. Dr. O'Connor has extensive experience in Breast Neoplasms and Gastrointestinal Neoplasms. She is affiliated with Adventist HealthCare Shady Grove Medical Center. She is accepting new patients and telehealth appointments.
  • Medical Oncology

  • Hematology

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

  • St. Georges University School Of Medicine

    Medical School
American Board of Medical Specialties®
American Board of Internal Medicine®
Hematology
Internal Medicine
Medical 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.

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Locations

Practice

Maryland Oncology Hematology P.A.9905 Medical Center Dr Ste 200 Rockville, MD 20850
1

Practice

Ion of Bethesda LLC6420 Rockledge Dr Bethesda, MD 20817
2
  • Call
  • Fax
  • Hours
    • Mon: 8:30am - 5:00pm
    • Tue: 8:30am - 5:00pm
    • Wed: 8:30am - 5:00pm
    • Thu: 8:30am - 5:00pm
    • Fri: 8:30am - 5:00pm
    • Sat: closed
    • Sun: closed
  • Directions
Associates In Oncology Hematology PC9707 Medical Center Dr Ste 300 Rockville, MD 20850
3

Practice

Maryland Oncology Hematology P.A.20330 Seneca Meadows Pkwy Germantown, MD 20876
4