Meet the Physicians

Dr. Carlos  Rivas, M.D.

I was born in San Juan, PR where I attended UPR. While there I received an associates degree in emergency medicine and a bachelors in Chemistry and Biology.   I joined the US military in 1980 and retired from US Navy in 2004.  I received a naval scholarship to attend medical school in Missouri.  I graduated top of my class in 1993. I did my residency in family medicine with an Emergency medicine track at LSU in Louisiana.   Once I finished I practiced both family medicine and emergency medicine in rural WV and Arkansas for 14 years before moving back to Missouri. I have worked as an ER physician throughout the bootheel of MO including Sikeston, Poplar Bluff, and Perryville while also remaining an active member of med stop family as medical director.   I reside here in Cape Girardeau with my Wife, Tamara, 6 children and my mother.   I am determined to provide the very best medical attention and care to all of my patients from newborn to geriatrics.  It is an honor to serve you as your doctor and friend in this community.

Lisa Kail,  MSN, APRN, FNP-BC

I was born in Cape Girardeau and I have lived here most of my life.  I attended Cape Central HS and earned my Degree in Nursing from Southeast Missouri State in 1995.  After 11 years as a nurse, I went back to get my Masters and Nurse Practitioner (FNP) License, graduating in 2006.  I’ve had the pleasure of working in several different nursing settings, all of which have added to my experience and expansive knowledge of a wide variety of healthcare issues and treatments.  In all, I have been a nurse and caregiver for over 27 years.  I absolutely LOVE being a FNP!  What gives me the greatest satisfaction is being able to help people by providing quality healthcare, and many times, peace of mind and life in general.  My patients tell me that I’m a good listener and easy to talk to….which to me is just part of being a good healthcare provider.  

I joined the MedStop One healthcare team 8 years ago, and I’ve enjoyed building a practice, getting to know our patients, and making a difference in our community. I welcome new patients and the opportunity to meet and provide anyone who needs our help, the very best quality care you’ll find anywhere.

Crystal Thomas, MSN, APRN, FNP-BC

I was born in Tennessee and raised in the Bootheel of Missouri.  I began my career in nursing 21 years ago as a nurse’s aide.  I have been a nurse now for almost 19 years.  I understand and respect this profession to the fullest as I started from the beginning and worked my way to the top by furthering my career to obtain my Master’s Degree in nursing at Chamberlain University of Chicago.  I received my license as a Nursing Home Administrator in February 2016.  I have worked in all areas of nursing which has built the foundation of the career I am so passionate about, and true passion makes all the difference.  The most important part of my life is family.  My husband and I have 5 children and 3 grandchildren.  It has always been my goal to give back to our community and there is no better way to serve our community than providing quality and compassionate care here at MedStop One…where every patient is treated like family.

Brittany Kasten, FNP-C

I have been in the healthcare field since 2011. I began as a nurse, and those experiences inspired me to be more. I graduated in 2021 with my Masters in Nursing and became certified through American Academy of Nurse Practitioners. Working in several different nursing settings, I gained a vast level of experience and expansive knowledge of a wide variety of healthcare issues and treatments, all of which prepared me for the role as a healthcare provider. I thoroughly enjoy getting to know my patients and establishing a relationship of trust and confidence, through quality health care, compassion, and always being accessible.

I was born and raised in Perryville, MO. I still reside in Perryville with my husband and two children. Family is the most important part of my life. I enjoy watching my kids play sports, spending time outdoors, and staying active. We enjoy traveling and experiencing different cities and towns. I am blessed to be part of the team here at MedStop One…where every patient is treated like family.

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