Comprehensive Care in One Convenient Location

After careful consideration and extensive research, we've chosen Athena as our new electronic health record system. This transition is part of our ongoing commitment to enhancing your overall patient experience. ​

Copyright © 2024 Columbia Medical Practice. All rights reserved.

New healthcare portal

Our Call Center is currently unable to receive calls because of the Microsoft CrowdStrike outage affecting Information Systems globally 
We will update this space  when our vendor resolves the issues

Rheumatology at Columbia Medical Practice

Our Columbia office has moved to a new location

Our phones are currently down.

James R. Bellor, M.D.
Board Certified - Internal Medicine and Rheumatology


The College of William and Mary, BS in Mathematics
Medical College of Virginia in Richmond, VA

Residency in Internal Medicine:
Lackland Air Force Base, TX

Fellowship in Rheumatology:
Walter Reed Army Medical Center, Washington, DC

Contact Us:
Ph:   410-964-6139

Fax:  410-964-6118

Office Manager: Fior Bonilla

Please see hours at each location

Columbia Medical Practice
6220 Old Dobbin Lane
Suite 275
Columbia, MD 21045

Monday, Tuesday, and Thursday from 8:00 am - 5:00 pm

Chesapeake Oncology Hematology Associates

129 Lubrano Drive, Suite 201
Annapolis, MD 21401

Wednesdays from 8:00 - 5:00

610 Solarex Court
Frederick, MD 21703

Fridays from 8:00 - 5:00

Services Offered:

  • Diagnosis and treatment of arthritis and other diseases of the joints, muscles and bones.
  • Infusion Therapy
    • Remicade
    • Orencia
    • Reclast
    • Prolia
    • Evenity
    • Visco supplementation​
    • And many other BiologicsOrencia​​
  • Columbia Office Only
    • DEXA Scans
    • Nerve Conduction Studies

 Dr. Bellor treats both younger and older adults (over 18) with arthritis, musculoskeletal pain disorders, certain autoimmune disorders, and osteoporosis. Because rheumatic diseases are complex and change over time, Dr. Bellor will work closely with you and your primary care physician to identify the problem and prepare an individualized treatment plan.

About Us