0 reviews
Summary
Dr. John Harrison is an internal medicine physician who has dedicated 36 years to caring for patients with a wide range of adult health conditions. He earned his medical degree from the University of Maryland School of Medicine, establishing a strong foundation in comprehensive patient care. Dr. Harrison speaks English and brings more than three decades of clinical experience to his practice.
Dr. Harrison is affiliated with MedStar Saint Mary's Hospital and practices at the University of Maryland Rehabilitation and Orthopaedic Institute in Baltimore, Maryland. His extensive background in internal medicine allows him to provide comprehensive care for adult patients, focusing on the prevention, diagnosis, and treatment of various medical conditions. With his decades of experience, he brings valuable expertise to patient care in the Baltimore area.
Dr. Harrison is affiliated with MedStar Saint Mary's Hospital and practices at the University of Maryland Rehabilitation and Orthopaedic Institute in Baltimore, Maryland. His extensive background in internal medicine allows him to provide comprehensive care for adult patients, focusing on the prevention, diagnosis, and treatment of various medical conditions. With his decades of experience, he brings valuable expertise to patient care in the Baltimore area.
Overview based on verified provider data
Quick Facts
- 36 years of experience
- speaks English
- University Of Maryland School Of Medicine
- 1 specialty
- 1 hospital affiliation
- 2 office locations
- Male
Office Locations
Dr. John Theodore Harrison has 2 locationsUniversity Of Maryland Rehabilitation And Orthopaedic Institute
2200 Kernan DrBaltimore, MD 21207 Tel: (410) 448-2500
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Dr. John Theodore Harrison, MD | David Peyser, PA-C | Dr. David Clark, MD | Gary G. Kerkvliet, MD, FACP |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 36 Years of Experience | 36 Years of Experience | ||
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | Speaks English, Russian |
| Baltimore , MD | Baltimore , MD | Greenbelt , MD | Baltimore , MD |
| Med School: University Of Maryland School Of Medicine | Med School: Physician Assistant Degree from Arcadia University | Med School: Howard University College of Medicine | Med School: University Of Minnesota Medical School |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Theodore Harrison
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. John Theodore Harrison has the following specialty
Certifications, License, & Education
36 Years Experience
Dr. John Theodore Harrison holds an expired medical license in the state of Maryland.
Medical License
Medical Doctor with an expired medical license in the state of Maryland.
Education & Training
Medical School
Graduated from University Of Maryland School Of Medicine in 1990.
NPI Number
Dr. Harrison's NPI number is 1770525636.
Similar doctors
Frequently Asked Questions
- Which hospitals is Dr. John Theodore Harrison affiliated with?
- Dr. John Theodore Harrison is affiliated with Medstar Saint Marys Hospital.
- How can I make an appointment with Dr. John Theodore Harrison?
- You can find contact information for Dr. John Theodore Harrison here on Vitals.
- Does Dr. John Theodore Harrison accept my insurance?
- You can see the insurance plans that Dr. John Theodore Harrison accepts on their Vitals profile.
- Is Dr. John Theodore Harrison accepting new patients?
- Dr. John Theodore Harrison has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- What languages does Dr. John Theodore Harrison speak?
- Dr. John Theodore Harrison speaks English.
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.




