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Thomas Guerrero-Garcia, MD

Phelps Health

Thomas Guerrero-Garcia, MD

Accepting New Patients

Offers Telehealth Visits


Medical Oncology/Hematology



Special Interests

Blood and bone marrow cancer as well as other types of cancer
Bone marrow aspirate and biopsy
Fat pad aspirate (removal of a small part of the abdominal wall for study of the tissue)
Intrathecal chemotherapy (administered between the spinal cord and brain)

Board Certifications

American Board of Internal Medicine – Internal Medicine
American Board of Internal Medicine – Medical Oncology
American Board of Internal Medicine – Hematology

About Me

I’m Thomas Guerrero-Garcia, MD, a medical oncologist/hematologist who joined Phelps Health in 2019. I see and treat adult patients (ages 18 and up) for different types of cancer, including but not limited to, breast, colon, lung, prostate, head and neck, chronic lymphocytic leukemia (CLL), multiple myeloma and leukemia/lymphoma. I also treat patients for benign (noncancerous) blood diseases.

In high school, I found myself enjoying and doing well in biology and anatomy. I went on to pre-med, where I was inspired by my biochemistry professor.

As I progressed through medical school, I became interested in oncology, the branch of medicine concerned with the prevention, diagnosis, treatment and study of cancer. I had completed an internship at the University of Miami and was intrigued after spending months with an oncology attending physician in the outpatient center. I then spent years training in blood cancers and cancers throughout the body in Boston, Massachusetts.

At the Phelps Health Delbert Day Cancer Institute (DDCI), I’m inspired by my coworkers. We truly love what we do, and I believe it shows. As a provider, I make it a point to listen and capture the key information from my patients.

I'm originally from Ecuador, South America, but now live in Rolla with my wife and children. I love dogs, reading and staying active outdoors. Soccer and tennis are my favorite sports. I am fluent in English and Spanish.

I also offer telehealth visits, which allow patients to visit with me remotely using a smartphone, tablet or computer with an internet connection and audio-video capabilities.

Education & Training

Medical School Medical School of the University of Guayaquil, Guayaquil, Ecuador

Residency Memorial Hospital of Rhode Island, Warren Alpert Medical School of Brown University, Pawtucket, Rhode Island

Fellowship St. Elizabeth’s Medical Center, Tufts University School of Medicine, Boston, Massachusetts, Dana-Farber Cancer Institute/BWH, Harvard Medical School, Boston, Massachusetts

Awards & Honors

awardIn 2023, Dr. Guerrero-Garcia received an employee nomination award for patient care.

awardIn 2019, Dr. Guerrero-Garcia and his care staff were recognized with Awards of Excellence for achieving patient experience scores above the 90th percentile. He also has been the recipient of training awards on elderly care.


For a list of insurance carriers that Phelps Health accepts, please click here.