We Are Here and Ready to Safely Care for You
At Johns Hopkins Medicine, your health and safety are our very highest priorities. We are ready to care for you and your family in our hospitals, surgery centers, and through in-person clinic and online video visits. Learn how we are keeping you safe and protected so that you can get the care you need.
How We Make Sure You Are Safe
To help prevent the spread of COVID-19, our doctors and care teams are taking extra precautions to make your visit as safe as possible.

Testing and Screening

Masks and Protective Equipment

Cleaning

Physical Distancing
In-Person Visits
If you are an existing patient and had an appointment that was postponed, our offices may contact you to reschedule. You can also call your doctor’s office or send a message via MyChart to discuss your healthcare needs so we can determine the appointment that is most appropriate. If you are a new patient, please call us at 443-997-1508 to schedule an in-person primary or specialty care visit.
Learn more about in-person visits.
Surgeries and Procedures
If you've been already scheduled for a procedure that had to be postponed, we will reach out to reschedule. If this is a new procedure, please contact us at 443-997-1508 to schedule a consultation.
Learn more about preparing for your appointment.
Video Visits (Telemedicine)
Learn more about video visits.
*New patients have not been previously seen by a provider at the Department of Surgery. **Existing patients have been seen by the department in the past. Existing patients must have a MyChart account to request an appointment online, or may otherwise need to call. You can enroll in MyChart to manage appointments, communicate with your provider, receive test results and request prescription renewals.
Our colon and rectal surgeons offer the latest medical and surgical treatment of diseases of the colon, rectum and anus. Treatment includes benign and malignant conditions.
Colon and Rectal Surgery: Why Choose Johns Hopkins
- Patients count on our advanced training and commitment to providing the most effective, most efficient and safest treatment options.
- We are among a limited number of institutions in the country to offer one of the latest surgical approaches, the 5x5 protocol, as an aggressive form of rectal cancer treatment.
- We offer additional world-class cancer treatment at our Colorectal Cancer Center, part of the Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins.
- Working with other specialists, our team provides consistent and seamless treatment for patients by performing routine screening examinations and surgically treating colon and rectal conditions when necessary.
Conditions We Treat
We specialize in the surgical treatment of colon and rectal diseases, including:
- Colon and rectal cancer
- Colon polyps
- Diverticular disease
- Fecal incontinence
- Hemorrhoids
- Inflammatory bowel disease
Our Advanced Treatment Approaches
Your physician will talk with you about which is the best option for your condition:
- Robotic surgery
- Minimally invasive surgery, including laparoendoscopic surgery
- Transanal endoscopic surgery
- Cytoreductive surgery and heated chemotherapy (HIPEC)
- 5x5 Protocol
5x5 – Latest in Rectal Cancer Treatment
Johns Hopkins colon and rectal cancer surgeons continue to lead the way in medical advancements aimed at colon and rectal cancer therapies.
What is the 5x5 protocol?
The 5x5 protocol administers 5 grays (Gy) of radiation for five days for a total of 25 Gy in combination with full-dose chemotherapy for advanced rectal cancer. As a result, patients receive a more consolidated dose of chemotherapy and radiation therapy prior to surgery. This systemic approach is a break from the more conventional method of delivering radiation over a longer five-week period.
Advantages of the 5x5 protocol:
- A shorter, more aggressive approach to rectal cancer treatment
- Ability to deliver chemotherapy prior to surgery
- More convenient for patients
The future of the 5x5 protocol
Johns Hopkins researchers will soon publish the results from a 5x5 protocol study and the outcomes of 30 to 40 patients who have undergone this procedure, nationally.
Your surgeon will work with you to determine the best treatment plan based on your diagnosis and circumstance.
Meet Our Physicians
Advanced Practitioners
Tam Warczynski, CRNP
Andi Gerard, CRNP
Janelle Glover, CRNP
Marybeth Blom, RN
Nicolle Cowell, RN
Carol Cwik, RN