HRMC Physicians Clinic - Internal Medicine
Providing health care for adolescent through geriatric patients, including assessment, diagnosis, evaluation and treatment. As an internal medicine provider, they have specialized training to care for complex medical conditions, as well as management of multiple disease processes.
Meet the Providers
Doreen Boomsma, CNP

Doreen Boomsma provides care for chronic medical conditions as well as acute care, specializing in adult, occupational and women's health.
Brett Mathers, DO

Dr. Mathers is an internal medicine physician for ages 17-70 and beyond, including diagnosis and treatment, preventative care and management of chronic and complex conditions.
Raul Octaviani, MD

Dr. Octaviani is a board-certified internal medicine physician who takes a whole-body approach to care, with a focus on the ideal health for each individual. He will get to know each patient, take inventory of current medications, diet, lifestyle, hormones and more to help each individual reach their optimal health.
Danielle Rathjen, DNP

Danielle Rathjen provides care for adults for acute care, chronic medical conditions, prevetnative medicine and helps patients meet weight loss goals.