Seth Udlis-Medical Doctor

SETH UDLIS, MEDICAL DOCTOR

Agnesian HealthCare
Udlis graduated from the University of Western Ontario, Canada. He practices family medicine at the Fond du Lac Regional West Clinic and also oversees the Grande Health and Wellness Center as the Medical Director. Udlis has been with Agnesian Healthcare for 15 years.


Melissa Tate PNP

MELISSA TATE, PRACTICE NURSE PRESCRIBER

Agnesian Work & Wellness

Tate received her Bachelor of Science in Nursing from University of Wisconsin-Madison, Master’s in Business Administration from Purdue University, and Master’s of Science in Nursing from Concordia University. She is certified through the American Academy of Nurse Practitioners as a family nurse practitioner. She comes to the Grande Clinics with more than 10 years of management experience, and nursing experience in cardiac care and education. Building a rapport with both patients and customers she works with is top on Tate’s priority list.


Tanya Guntly-Physician Assistant

TANYA GUNTLY, PHYSICIAN ASSISTANT

Agnesian Work & Wellness
Tanya is a nationally certified physician assistant. She received her Bachelor degree in Biomedical Sciences and her Masters degree in Physician Assistant Studies from Marquette University. She has over 15 years experience as a physician assistant and has worked as a PA in several different specialties, including Family Medicine and Neurosurgery. As a PA she believes in working as a team to deliver high quality patient centered care. She takes pride in providing compassionate patient care. She is passionate about wellness, prevention, and patient education.


Megan Diener NP

MEGAN DIENER, NURSE PRACTITIONER

Agnesian Work & Wellness
Megan earned a Bachelor of Science degree in Nursing from the University of Wisconsin-Oshkosh. She recently earned a Master of Science degree as an adult nurse practitioner from Marian University. Diener hopes to maintain the team approach in guiding and supporting the patients she cares for with a strong belief in teamwork between the patient and provider.


Hillary Boeke MA

HILLARY BOEKE, MEDICAL ASSISTANT

Agnesian Work & Wellness
Boeke graduated from Globe University-Middleton with a Medical Assistant degree in 2010. She is excited to be a part of the Agnesian Work & Wellness team to promote health and wellness to Grande Associates. She lives on a working dairy farm with her family. In her free time, she loves to help out on the farm and spend time with her family.


Mary Mellenthin NP

MARY MELLENTHIN, NURSE PRESCRIBER

Agnesian Work & Wellness

Mellenthin earned her master’s degree as a family nurse practitioner from Concordia University-Wisconsin. Prior to her degree, she worked as a registered nurse for more than 25 years in occupational health, preventive health and wellness. She is a recipient of the prestigious Nightingale Award for excellence in nursing practice and a member of the American Academy of Nurse Practitioners. She is board certified as a family nurse practitioner and as an occupational health nurse specialist. Mellenthin provides personalized care to adults and children including wellness visits, and also manages acute and chronic health conditions.”Getting to know my patients and their families is the best part of being a nurse practitioner and I look forward to becoming your partner and guide in healthy living.”


Stefanie Petrie NP

STEFANIE PETRIE, NURSE PRACTITIONER

Agnesian Work & Wellness
Stefanie graduated from the University of Wisconsin-Madison with a Bachelor of Science degree in Nursing and earned her Master of Science Nursing degree as a Family Nurse Practitioner from University of Wisconsin-Oshkosh. She has over 5 years of experience in women’s health, occupational health, and acute and chronic disease management. She looks forward to working with Grande Associates to achieve their wellness goals and making healthier lifestyles for themselves.

Roberta Last, Supervisor-Case Manager

ROBERTA “BOBBI” LAST, SUPERVISOR/ CASE NAVIGATOR

Agnesian Work & Wellness
Last is the new RN case manager with Agnesian HealthCare serving Grande Health & Wellness Clinics. Her entire career has been in the healthcare field, beginning at the age of 15 as a nursing assistant a continuing as a graduate of Marian College, now Marian University of Fond du Lac. Last has 15 years RN experience and six years of case management experience. She also worked as a nurse in corrections for eight years. Her passion is assisting people and empowering them to be knowledgeable and in control of their health. Last resides in Rosendale with her three children. She enjoys crocheting and assisting with her children’s extra-curricular activities.


Nicole Merz PA

NICOLE MERZ, PHYSICIAN ASSISTANT

Agnesian Work & Wellness

Nicole received her Bachelor of Science in Microbiology with a biomedical concentration from the University of Wisconsin-La Crosse and her Masters in Physician Assistant Studies from Des Moines University. She is nationally certified through the NCCPA. She is also a member of the Air National Guard where she works as a Physician Assistant on the CERFP unit. Nicole is passionate about patient centered care and shared decision making with the patient. She is particularly passionate about patient education and wellness. She looks forward to working with Grande Associates and their families to achieve their healthcare goals.


Diane Hallman-Registered Medical Assistant

DIANE HALLMAN, REGISTERED MEDICAL ASSISTANT

Agnesian Work & Wellness

Diane has been a Medical Assistant for over 14 years after graduating from Fox Valley Technical College. The majority of her experience has been in family practice. As part of the Agnesian Work and Wellness team at Grande, she is excited to assist in empowering patients to make positive lifestyle changes to better their overall quality of life.


Darcey Amundson-Physician Assistant

Darcey Amundson, Physician Assistant

Agnesian Work & Wellness

Darcey graduated from Illinois State University with a Bachelor of Science degree in Medical Technology. She received her Physician Assistant degree from Western Michigan University. She is nationally certified by the NCCPA. She has 20 years of experience as a Physician Assistant in several areas of primary care including urgent care, family medicine, occupational health, and most recently employee-based wellness. She looks forward to working with Grande Associates and their families to make positive healthy lifestyle choices, providing patient education, and empowering patients to be in charge of their health.


Brianna Agee-Medical Support Specialist

Brianna Agee, Medical Support Specialist

Agnesian Work & Wellness

Brianna is proud to be the Medical Support Specialist at the Agnesian Work & Wellness-Grande Clinics. With over six years of experience as a receptionist and audiology assistant for a non-profit clinic, she looks forward to being a resource for Associates through their care at the Grande Clinics. Brianna studied American Sign Language (ASL) and deaf Culture at Bloomsburg University in PA and is naturally a very organized, social person. She loves exploring new cultures and exploring the natural beauty of Wisconsin with her partner and two dogs.


Heather Wenzel-Certified Medical Assistant

Heather Wenzel, Certified Medical Assistant

Agnesian Work & Wellness

Heather has taken the new role as Mary Mellenthin’s Medical Assistant. Heather has been in the medical field since 2005. She started out as a Certified Nursing Assistant in home care for 6 years. During this time she enjoyed working as a Firefighter, First Responder, Ambulance Driver, and EMT. She later went onto school for Medical Assistant and graduated from Moraine Park Technical College in 2016. Heather has experience in Nuero, Transitional Care, Work & Wellness, Anticoagulation and Family Practice. Heather enjoys spending time with her husband and two children outdoors. Heather is an avid hunter and fisherman. She also likes to decorate cakes in her spare time for family birthday’s and special occasions.

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