Columbus Internal Medicine Associates exterior

Columbus Internal
Medicine Associates

Online Services


We now provide you with 24/7 electronic access to view your medical records, pay your bill and exchange secure messages with our staff.

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4050 Central Ave
Columbus, IN 47203

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Monday - Friday
8am - 5pm
(Note: Phone calls are answered between 8:15 am and 4:30 pm M-F)

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We are pleased that you have entrusted us with your healthcare. It is a privilege we take very seriously. Our goal is to provide outstanding care to achieve the highest possible patient satisfaction. As we are always looking for ways to improve our service, please feel free to comment on any issues that are of concern. We feel that we have a talented and dedicated staff. They will address any questions you may have regarding your healthcare.


Columbus Internal Medicine Associates has been awarded recognition by the National Committee for Quality Assurance Patient-Centered Medical Home Program.


To schedule an appointment, please call our office at 812-376-9427.

Please explain the reason for your visit. This allows us to schedule the appropriate time needed to address your healthcare concerns. For your first visit, please arrive 15 minutes prior to your appointment time so that we may obtain the information required for establishing your care.

• Each visit bring your insurance card with you as well as a list of your current medications.
• Please inform the front desk staff of any change in name, address, telephone number, employment or insurance.
• Always inform your health care provider of any changes in medical history.

If you have an urgent need to be seen, please call as soon as possible, and we will try to accommodate you. We do our best to stay on schedule, but emergencies may sometimes cause unexpected delays. You play a major role in helping us stay on schedule. If you are running late, please phone before you come, as we may ask you to reschedule your appointment so that our other patients are not inconvenienced. 

Please extend these courtesies to others in our office: no smoking, no perfumes. Please turn off your cell phone when you arrive in our office.


Our Providers

Alan J. Watanabe, MD

Rachel Cooper, MD

Christopher K. Iorio, MD

Tara L. Roeder, MD

Manjusha Thenozhiyil, MD