3.6
24 Ratings with 5 written Reviews
Summary
Dr. Mark Diamond has practiced gastroenterology and internal medicine for 52 years and is affiliated with Medstar Franklin Square Medical Center, Saint Joseph Medical Center, and University of Maryland Upper Chesapeake Medical Center. He treats colon polyps, acid reflux, and GERD, and performs colonoscopy and lower GI endoscopy.
Dr. Diamond earned his medical degree from Ohio State University College of Medicine & Public Health and completed his residency at Johns Hopkins Health System. He sees patients in Baltimore and Towson, Maryland, and Bel Air, Maryland. He speaks English and French. Patients on Vitals rate Dr. Diamond 3.58 out of 5.
Dr. Diamond earned his medical degree from Ohio State University College of Medicine & Public Health and completed his residency at Johns Hopkins Health System. He sees patients in Baltimore and Towson, Maryland, and Bel Air, Maryland. He speaks English and French. Patients on Vitals rate Dr. Diamond 3.58 out of 5.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 52 years of experience
- speaks English, French
- Johns Hopkins Health System
- 5 written reviews
- 2 specialties
- 11 areas of expertise
- 4 hospital affiliations
- 6 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Provided follow-up after the visit
- Flexible scheduling
Based on patient feedback. Read the reviews
Office Locations
Dr. Mark Philip Diamond has 6 locationsDiamond Mark P Office
5233 King Ave Ste 308Baltimore, MD 21237 Tel: (410) 574-5877
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 4:30 pm
SatClosed
SunClosed
University Of Maryland Upper Chesapeake Medical Center
500 Upper Chesapeake DrBel Air, MD 21014 Tel: (443) 643-1000
Medstar Franklin Square Medical Center
9000 Franklin Square DrBaltimore, MD 21237 Tel: (443) 777-7000
Maryland Endoscopy Center
100 West Rd Ste 115Towson, MD 21204 Tel: (410) 698-6432
Mon7:00 am - 3:30 pm
Tue7:00 am - 3:30 pm
Wed7:00 am - 3:30 pm
Thu7:00 am - 3:30 pm
Fri7:00 am - 3:30 pm
SatClosed
SunClosed
University Of Maryland Upper Chesapeake Medical Center
500 Upper Chesapeake Dr Ste 405Bel Air, MD 21014 Tel: (443) 643-1000
Compare with Similar Doctors
 |  |  | |
| Dr. Mark Philip Diamond, MD | Sarah Proffit, APRN | Brendon Bower, APRN | Brian James Ward |
| Gastroenterology | Gastroenterology | Gastroenterology | Infectious Disease |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 52 Years of Experience | 46 Years of Experience | ||
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | No Virtual Visit Option |
| Speaks English, French | Speaks English | Speaks English | |
| Baltimore , MD | Baltimore , MD | Tempe , AZ | BALTIMORE , MD |
| Med School: Ohio State University College Of Medicine & Public Health | Med School: Wilmington University | Med School: University of Cincinnati | Med School: Mc Gill Univ Fac Of Med |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Mark Philip Diamond
Medical Specialties
Dr. Mark Philip Diamond has the following 2 specialties
Specialty Expertise
Dr. Mark Philip Diamond has the following 11 areas of expertise
Certifications, License, & Education
52 Years Experience
Dr. Mark Philip Diamond holds an expired medical license in the state of Maryland.
Medical License
Medical Doctor with an expired medical license in the state of Maryland that expired in 2026.
Education & Training
Residency
Completed their residency at Johns Hopkins Health System.
Medical School
Graduated from Ohio State University College Of Medicine & Public Health in 1974.
NPI Number
Dr. Diamond's NPI number is 1912081019.
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Frequently Asked Questions
- Which hospitals is Dr. Mark Diamond affiliated with?
- Dr. Mark Diamond is affiliated with Medstar Franklin Square Medical Center, Saint Joseph Medical Center, University Of Maryland Upper Chesapeake Medical Center, and University Of Maryland Upper Chesapeake Medical Center.
- Does Dr. Mark Diamond accept my insurance?
- You can see the insurance plans that Dr. Mark Diamond accepts on their Vitals profile.
- Where is Dr. Mark Diamond's office located?
- Dr. Mark Diamond's office is located at 5233 King Ave Ste 308, Baltimore, MD, 21237.
- Is Dr. Mark Diamond accepting new patients?
- Dr. Mark Diamond is accepting new patients on Vitals. View Dr. Mark Diamond's profile on Vitals to make an appointment.
- What languages does Dr. Mark Diamond speak?
- Dr. Mark Diamond speaks English and French.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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