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Dr. John Wallmark, MD

Dr. John Wallmark, MD

Medical Oncology*
30+ years of experience

Dr. John Wallmark, MD is a medical oncologist in Rockville, MD and has over 30 years of experience in the medical field. He graduated from Drexel University College of Medicine in 1992. He is affiliated with medical facilities Adventist HealthCare Shady Grove Medical Center and Suburban Hospital. He is accepting new patients and telehealth appointments.

4.8 Star Rating
Based on 94 reviews 4.8 Star Rating (94 reviews)

Practice

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

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Dr. Wallmark's Reviews

Likelihood to recommend Dr. Wallmark

4.8

94 ratings, 75 with a written review
5 Star
91%
91%
4 Star
4%
4%
3 Star
0%
0%
2 Star
2%
2%
1 Star
2%
2%

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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
Apr 11, 2025
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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
Apr 05, 2025
×Post a ResponseAre you Dr. John Wallmark, 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
Denise – Jan 18, 2025
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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
Nov 14, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. John Wallmark, 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
M Goldfarb – Nov 05, 2024
×Post a ResponseAre you Dr. John Wallmark, 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
David – Oct 18, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. John Wallmark, 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
Scott Ross – Sep 06, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. John Wallmark, 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 20, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. John Wallmark, 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
Ruth Hrltzer – May 17, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. John Wallmark, 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
SL – May 05, 2024
We appreciate your positive feedback! It makes us...Read More
×Post a ResponseAre you Dr. John Wallmark, 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 a review....Read More
×Post a ResponseAre you Dr. John Wallmark, 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 24, 2024
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. John Wallmark, 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
Lois M. – Dec 30, 2023
Thank you for taking the time to share your...Read More
×Post a ResponseAre you Dr. John Wallmark, 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 24, 2023
Thank you for taking the time to leave such a...Read More
×Post a ResponseAre you Dr. John Wallmark, 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 19, 2023
We are happy to hear you had such a positive...Read More
×Post a ResponseAre you Dr. John Wallmark, 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 05, 2023
We’re glad to hear you had a great experience. We...Read More
×Post a ResponseAre you Dr. John Wallmark, MD?
What went well
No results
What could be improved
No results
Helpful
Dec 02, 2023
×Post a ResponseAre you Dr. John Wallmark, MD?
What went well
No results
What could be improved
No results
Helpful
Aug 26, 2023
×Post a ResponseAre you Dr. John Wallmark, MD?
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Difficult to schedule appointment
Helpful
A. P. – Jun 02, 2023
×Post a ResponseAre you Dr. John Wallmark, 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
Jan 20, 2023
×Post a ResponseAre you Dr. John Wallmark, MD?

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About Me

biography

Dr. John Wallmark, MD is a medical oncologist in Rockville, MD and has over 30 years of experience in the medical field. He graduated from Drexel University College of Medicine in 1992. He is affiliated with medical facilities Adventist HealthCare...read more
  • 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.

  • University Of Nc Hosps|university Of Pa Health System

    Residency Hospital
  • Drexel University College Of Medicine

    Medical School, 1992
American Board of Medical Specialties®
American Board of Internal Medicine®
Hematology
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

Maryland Oncology Hematology P.A.11886 Healing Way Ste 701 Silver Spring, MD 20904
2