Our Staff


Dr. John Vassallo MD

Internal Medicine Physician

Dr. John Vassallo is a Board Certified internal medicine physician who lives in Howell, provided care and has provided care to Livingston County since 2005. As an internist, Dr. Vassallo treats a range of patient conditions from the common cold to complex chronic medical issues such as diabetes and heart disease. He is committed to working with patients to prevent the occurrence of chronic disease and take steps that lead to a long, satisfying life.  This is achieved through communication, education, screening exams, and expert medical knowledge. 
 
Dr. Vassallo enjoys reading (history), everything outdoors, and rugby. 


What people are saying...

"Dr. Vassallo is AMAZING!!! If you want an honest and forthright doctor, he is your guy!"

"Dr. Vasallo is an awesome MD. He is very knowledgeable. He gives me the feeling that he really cares about his patients."


Katie Arno NP

Nurse Practitioner

Katie has been a board-certified family nurse practitioner since 2020. She earned her Master’s Degree in Nursing at Ramapo College of New Jersey. Katie’s background includes hospice, palliative and primary care. Katie specializes in chronic disease management and symptom management. She loves being able to help people achieve their health goals so they can live their best quality of life. In her free time, Katie loves spending time with her husband, son and 2 dogs.


What people are saying...

"Katie was informative, helpful and professional. Perfect."

"Katie listens and appears to actually care about my health and opinions."


Michelle Whitesel NP

Nurse Practitioner

Michelle has been a board-certified family nurse practitioner since 2020. She earned her Master's Degree in Nursing at the University of Michigan Flint. Michelle's background includes Hospice, Geriatrics, and Family Practice. Michelle treats patients with multiple health problems with a focus on disease prevention. She is passionate about working with her patients on migraines, women's health, and obesity.


What people are saying...

“Absolutely love your staff, Michelle is so pleasant, professional and polite, just an all around pleasure to consult with so much more than my previous provider!”

“I have been a patient here for almost 15 years and wouldn't even think about going anywhere else. Everyone in this office is very kind and friendly. Michelle Whitesel is absolutely amazing, she is very caring and goes above and beyond for her patients.”