About Sharon Larsen, DNP, APN

Professional image of Sharon Larsem

Sharon Larsen, DNP, APN, FNP-BC, is a board-certified nurse practitioner with Full Practice Authority (FPA) in Illinois.

Her primary focus in both education and practice has always been the safety and well-being of her patients.

As a nurse practitioner with FPA, Sharon can evaluate patients and diagnose, order, and interpret diagnostic tests, independent of a physician. In addition, she can initiate and manage treatments for patients, including the prescribing of medication.

She opened CardinaLight Health with a single purpose: to provide a different kind of primary care to her patients. The company motto is Healthcare which comes from the heart.

The practice’s name, “CardinaLight,” is rooted in her family history. Many people believe that when a cardinal appears, this means an angel is nearby. She wanted to choose a name that honored the legacy her father left behind, and “CardinaLight” was born.

Sharon’s father was an influential person in her life. He taught her critical values when she was growing up that she used as the basic tenets on which to build her practice. Those values are love, faith, and purpose.

During her employment, Sharon has always been passionate about the health of her patients. Not only does she deliver quality healthcare to her patients. She educates them about their health by providing the information that patients need to understand and improve it.

Her relationships with her patients fuel her desire to expand her knowledge to provide current and complete care to her patients.

Before going into primary care, Sharon had a long and diverse career in other areas of the healthcare industry. She started in emergency services, was a firefighter/paramedic, and worked as an ER technician while in nursing school.

She graduated with her nursing degree in 1997. While working as a nurse in the Emergency Department and as a flight paramedic on Flight For Life, she continued her education. In 2001, she graduated Sigma Theta Tau with a Bachelor of Science in Nursing from Lewis University.

After working in the ER for 15 years, she decided to return to school to further her career. In 2010, she graduated with high honors from Northern Illinois University, earning a Master of Science Degree as a Family Nurse Practitioner. That is when she turned her focus to primary care.

After seven years, she once again returned to school, achieving her highest educational goal. In 2017, Sharon graduated from Wilkes University with a Doctorate in Nursing Practice. Her focus was patient education post-discharge in patients with heart failure.

Community is significant to Sharon. She has lived in this community for her entire life and feels close ties to others. This is why her education and practice focus has always centered around the patients that she serves.

Sharon is honored to provide compassionate, high-quality primary care to patients in and around Crystal Lake.

Why “CardinaLight”?

Many believe that when a cardinal appears, an angel is near.  The name of our practice, CardinaLight, was born with this thought in mind.  My father left behind a legacy that is filled with love, faith and purpose and we wanted to honor this in an endeavor I know that he would have completely supported.  Our practice logo is representative of me and my father in a brakeman’s lantern, a lantern my paternal grandfather used throughout his career, and a lantern that was present in our home my entire childhood.  CardinaLight Health, LLC hopes to be a medical practice that will embody that love, faith and purpose.

Sharon's father sitting outside

Insurance & Cash Pay

We are credentialed with the following…

United Healthcare


BCBS Blue Choice PPO Preferred

BCBS Blue Choice Options

BCBS Professional Blue Choice PPO



Actin Care Group

Some Tricare plans 

Competitive Cash Pay fees

Office Photos

We look forward to welcoming you to our office.