Thank you for visiting Cattail River's Hematology and Medical Oncology web page.

This office is a medical practice that specializes in Medical Oncology and Hematology. We put every effort into providing personal and professional service to patients with serious medical problems. We provide most Hematologic and Oncologic services in the office setting. These include blood work,injections in muscle, skin, and intravenous infusions.

Our staff is here to help patients through their medical problems. Our office is locationed in Olney, Maryland. Our principle hospital is Montgomery General Hospital. We also have privileges at Surburban Hospital and Providence Hospital. The office is HIPAA compliant.

Please call and schedule an appointment (We use an a telephone answering tree, please listen to the entire tree to select the appropriate box for your message. As a backup if staff is not able to answer call immediately)

OFFICE NEWS: (updated 11/02/2011)

As last Saturday showed snow can hit at any time as a reminder listed below is our Inclimate Weather Policy. As always we are concerned for your well being.

Inclimate Weather Policy: When Motgomery County Administrative Offices close due to inclimate weather our offices are closed as well. If you have any questions you may check the website. You may also contact the offices. If you reach our voicemail the offices are closed. Staff will contact patients if it is felt to be unsafe conditions. If there is any concern for safety due to age or fraile condition call the office.



We once again have hours in Damascus. Our hours are 9AM - 12 PM the address is:

9701 New Church Street, Suite D

Damascus, MD






J. Garrett Reilly, M.D., Ph.D., F.A.C.P.

Janyce Stuntz, R.N.

Sue N. Reilly, B.S.N., R.N.

Kim Scott, Accounts Manager

Marc Scott, Web Coordinator


New Patients If you are a new patient please take time to fill out the forms in the New Patient section to make your first visit an enjoyable and efficient one. When you call for an appointment please listen to the entire phone answering tree before making a slection (for as list of answering systems buttons click here). You will also find directions on how to drive to our office in the Contact Us section. Pictures of office is in the Office Hours Section.

3418 Olandwood Court, Suite 111 Olney, MD 20832 Telephone (301)774-8198 Fax (301)774-8199

This site is © Cattail River 2004-2010, All Rights Reserved.
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