Clinical Office Staff

With a diverse set of skills and specialties, our dedicated staff is here to make your experience comfortable and successful.


Vascular Lab Technicians:

 Kathryn J. Pazienza, LPN, RVT, joined the Vascular Center of Northern Michigan in 2008, bringing with her eighteen years of experience and professionalism in the vascular field. Kathy graduated from Mott Community College and pursued a career at McLaren Regional Medical Center as an LPN. She moved on to Michigan Vascular Center, Flint, Michigan as a registered vascular technologist. Kathy developed a deep vein thrombosis and pulmonary embolism case study used in physician presentations at McLaren Regional Medical Center. She then moved on to St. Joseph Mercy Hospital in Ypsilanti as an RVT. She developed the expertise in vascular studies which included renal, abdominal, carotid, arterial, AVF and venous duplex. She also performed peripheral arterial testing, venous reflux and graft surveillance studies. Kathy has also been an active lab instructor at Baker College in Auburn Hills, Michigan.

Kathy with her excellent technical skills, balanced with genuine compassion is an excellent asset to the team at the Vascular Center of Northern Michigan.[/ezcol_3quarter_end]


Annette Casciano, RVT, joined the Vascular Center of Northern Michigan in 2009. She brings with her 7 years of experience as a professional in the vascular technology field. Annette previously worked as a certified medical assistant and a medical billing specialist. After additional training she received her certificate of Vascular Technology in 2005. She spent the next 4 years at the Michigan Vascular Center before joining the practice at the Vascular Center of Northern Michigan.

Her professional experience includes all areas of vascular testing: carotid, renal, abdominal, venous, arterial, AVF and bypass duplex. She is also very experienced in peripheral arterial testing and has done vascular studies in the operative setting.

Annette is a well-rounded and experienced vascular technologist and we are thrilled that she has chosen to move her family north and join our team.[/ezcol_3quarter_end]



Jennifer MacArthur, RDMS, RVT, joined the Vascular Center of Northern Michigan in 2018. Graduating from Ferris State University in 2008 with an Associates in Diagnostic Medical Sonography and again in 2012 with a Bachelors in Health Information System Administration. Jennifer brings with her 10 years of experience in general ultrasound, obstetrics and vascular technology. She began her career at Marquette General Hospital where she refined her ultrasound skills and was the Ancillary Clinical Instructor for Ferris State University in Obstetrics and Gynecology. After living in the Upper Peninsula for eight years, she decided to take her career on the road and pursued travel ultrasound around the country for three years. Being a northern Michigan native and having a love for the Great Lakes, she decided to settle down in Traverse City to be closer to family. Jennifer has been a Registered Vascular Technologist since 2014.



Denise Kerry, RT(s), RVT, Joined the Vascular Center of Northern Michigan in 2018.  She brings with her 13 years of experience in general and vascular ultrasound. Denise graduated from Baker College of Owosso in 2005 and started her career at Sparrow Hospital in Lansing, Michigan. She then applied on the job training and education to become a registered vascular technologist in 2017.

Denise has excellent skills in scanning renal, abdominal, arterial, carotid, AVF, and venous duplex. Coupled with an excellent skill set, including treating patients with kindness and compassion, she will be a welcome asset to the Vascular Center of Northern Michigan.






Office RNs:

Sarah Winter, R.N., brought her extensive nursing experience to the Vascular Center of Northern Michigan in April 2016. Sarah graduated with her nursing degree and became a registered nurse in 1999. She began her career in southeastern Michigan at Herrick Hospital in Tecumseh. She worked diligently in Obstetrics/Labor and Delivery for three years before moving to the Emergency Department, where she spent the next eleven years. While at Herrick. Sarah developed an immense understanding of wound and critical care, as well as peripheral vascular disease and its treatment.

Sarah has traveled extensively with her husband, and her skills were polished at Holland Hospital Urgent Care in Holland, MI and at a rheumatology clinic in North Carolina. Her work as an infusion nurse is especially helpful when she works in the VCNM Surgical Suite, preparing patients for procedures and caring for them while in recovery. Her knowledge in a vast assortment of chronic conditions makes her a valuable asset to the Vascular Center team. Her husband’s career brought Sarah and the family pets to Traverse City where all are enjoying the healthy outdoor lifestyle Up North.[/ezcol_3quarter_end]


Steffi Valdiviez CVRN-BC graduated from Mercy College of Nursing in 2011. She is an energetic and dedicated nurse that has extensive experience with cardiac and vascular patients. She has worked in the Cardiovascular ICU at Saint Vincent Medical Center in Toledo, Ohio, and in the cardiovascular progressive-care/step-down unit at the Detroit Medical Center. She worked to become a Cardiac Vascular Board Certified Registered Nurse through the ANCC. She is familiar with a broad range of vascular surgeries, treatments, and therapies. She has a passion for serving patients with her whole heart.

Steffi joined the Vascular Center of Northern Michigan in November 2017. She and her husband, and two young boys recently moved to Traverse City from downstate. They enjoy all the camping, hiking and beaches that TC has to offer. Steffi is excited to be   part of the VCNM team.


Alisha D., R.N. joined the Vascular Center in November of 2017. She graduated from Northwestern Michigan College in 2016 with an Associates Degree in Nursing, as well as an Associates Degree in Biology.  Alisha spent eight years at a local long term care facility, which solidified her passion for healthcare and helping people.  After changing her career to the hospital setting, she developed an interest in vascular disease. She takes pleasure in educating patients on wound care, diet, exercise, and other health related issues.

Alisha and her husband have four children and reside in Traverse City. They enjoy anything outdoors and are active all seasons of the year.