background
background
Dr. Mark Diamond, MD

Dr. Mark Diamond, MD

Gastroenterology*
50+ years of experience

Dr. Mark Diamond, MD is a gastroenterologist in Rosedale, MD and has over 50 years of experience in the medical field. He graduated from Ohio State University College of Medicine in 1974. He is affiliated with medical facilities MedStar Franklin Square Medical Center and University of MD Upper Chesapeake Medical Center. He is accepting new patients and telehealth appointments.

3.7 Star Rating
Based on 35 reviews 3.7 Star Rating (35 reviews)

Practice

5233 King Ave Ste 308 Rosedale, MD 21237
Telehealth available

Make an Appointment

Compare Dr. Mark Diamond, MD with other Gastroenterologists near you

Dr. Diamond is a Healthgrades Choice provider in Gastroenterology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions

Experience Check

Search for experience in a specific area

Dr. Diamond's Reviews

Likelihood to recommend Dr. Diamond

3.7

35 ratings, 14 with a written review
5 Star
66%
66%
4 Star
0%
0%
3 Star
3%
3%
2 Star
0%
0%
1 Star
31%
31%

Your trust is our top concern. Learn more.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

RecentHighestLowestMost Helpful
Telehealth
What went well
  • I felt respected
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Michelle L. – Jun 17, 2024
×Post a ResponseAre you Dr. Mark Diamond, 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. Collins – Dec 19, 2023
×Post a ResponseAre you Dr. Mark Diamond, 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
Rob Z. – Dec 15, 2023
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
Helpful
Ron – Nov 02, 2023
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Didn't listen or answer questions
  • Staff wasn't friendly
Helpful
Mar 31, 2022
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
No results
What could be improved
No results
1 person found this helpful
Helpful
Mar 13, 2021
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Steve O in Abingdon – Sep 05, 2019
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • 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
3 people found this helpful
Helpful
Peggy Castro – Jun 07, 2018
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
No results
What could be improved
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
3 people found this helpful
Helpful
Dec 30, 2017
×Post a ResponseAre you Dr. Mark Diamond, 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
3 people found this helpful
Helpful
bel air, md – Mar 26, 2017
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
No results
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
MD – Mar 06, 2017
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • Appointment scheduling
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Didn't trust the provider's decisions
5 people found this helpful
Helpful
Brian in Abingdon, MD – Jan 24, 2017
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
May 13, 2016
×Post a ResponseAre you Dr. Mark Diamond, MD?
What went well
  • Explained conditions well
  • Wait times
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Staff wasn't friendly
7 people found this helpful
Helpful
Dec 19, 2015
×Post a ResponseAre you Dr. Mark Diamond, MD?

Leave a review

How was your experience with Dr. Diamond?

About Me

biography

Dr. Mark Diamond, MD is a gastroenterologist in Rosedale, MD and has over 50 years of experience in the medical field. He graduated from Ohio State University College of Medicine in 1974. He is affiliated with medical facilities MedStar Franklin...read more
  • Gastroenterology

  • Internal Medicine

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

  • The Johns Hopkins Hospital

    Fellowship Hospital, 1979
  • University Hospitals Of Cleveland

    Internship Hospital, 1975
  • Ohio State University College Of Medicine

    Medical School, 1974
American Board of Medical Specialties®
American Board of Internal Medicine®
Gastroenterology
Internal Medicine
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.

Dr. Diamond is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Insurance Check

    Search for your insurance carrier and choose your plan type

    Locations

    Practice

    Office5233 King Ave Ste 308 Rosedale, MD 21237
    1
    Franklin Square Hospital Center Inc.9000 Franklin Square Dr Baltimore, MD 21237
    2

    Affiliated Hospitals

    • University of MD Upper Chesapeake Medical Center

      500 Upper Chesapeake Dr
      Bel Air, MD 21014
      Recipient of 5
      hospital awards

      Surgical Care Excellence Award™ (2024)

      Superior clinical outcomes in surgical care across 15 of the most common in-hospital surgical procedures including cardiac, vascular, joint replacement, prostate, spine, and gastrointestinal surgeries

      View all awards

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

      84%
      Patients said they were given information about recovering at home
      75%
      Patients said that nurses always listened to them and explained things well
      View all patient feedback
    • MedStar Franklin Square Medical Center

      9000 Franklin Square Dr
      Baltimore, MD 21237
      Recipient of 15
      hospital awards

      America's 250 Best Hospitals Award™ (2025, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      America's 100 Best Hospitals Award™ (2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

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

      85%
      Patients said they were given information about recovering at home

      1% higher than the national average

      73%
      Patients said that doctors always listened to them and explained things well

      3% lower than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality