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Mindy Murray, ARNP, PMHNP-BC

Mindy Murray, ARNP, PMHNP-BC


Mindy earned her associate degree in nursing from North Iowa Area Community College. She continued her education at the University of Iowa, where she received her bachelor’s degree in nursing and went on to complete her Master of Science Degree in nursing at Allen College. She is certified as a psychiatric-mental health nurse practitioner.

Prior to joining the Mason City Clinic psychiatry department, Mindy worked with geriatric and long-term care patients and was an adjunct nursing instructor at NIACC. Her passion is caring for adults and providing education for their loved ones.

In her free time, Mindy enjoys reading, hiking, cheering on her favorite sports teams with her family, golfing with her husband and vacationing in Florida.

Michele Plunkett, ARNP

Michele Plunkett, ARNP

Michele received her undergraduate degree from University of Iowa and her master’s in nursing sciences from Allen College in Waterloo, Iowa. She is certified by the American Association of Nurse Practitioners and a member of Sigma Theta Tau Honors Nursing Society.

Michele brings over 20 years of registered nurse experience in acute care, intensive care and in the Cardiac Stepdown Unit.

In her free time, she enjoys spending time with her family, traveling and practicing her culinary skills.

Colombia Ptacek, ARNP

Colombia Ptacek, ARNP

Colombia Ptacek earned her Bachelor of Science degree in nursing and her Master of Arts degree as a family nurse practitioner from Allen College in Waterloo, IA. She is certified by the American Nurses Credentialing Center.

Colombia looks forward to providing care to those who live in the community as well as surrounding areas.

In her free time, Colombia enjoys spending time with family, cooking and going to the theater.

Lark Trygstad, MA, ARNP-C

Lark Trygstad, MA, ARNP-C

GI/Internal Medicine

Lark Trygstad earned her Bachelor of Science degree in nursing from the University of Iowa College of Nursing in Iowa City and her Master of Arts degree in nursing from the College of St. Catherine in St. Paul, Minnesota.

A staff member of Mason City Clinic since 2001, Lark is a geriatric nurse practitioner in the internal medicine department and handles capsule endoscopy procedures for visualization of the small bowel. She has a tremendous amount of experience in geriatric healthcare and has credentialing by the American Nurses Association as a gerontological nurse practitioner. Lark is a member of the American Society of Geriatrics and Sigma Theta Tau, the International Nursing Honor Society and American Nurses Association.

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