Dr. Arvind Ahuja is extremely proud to work with a team of highly experienced medical professionals at Neurosurgery and Endovascular Associates.

Every day, our staff goes above and beyond to ensure that each patient receives the best care possible. Here are the dedicated people who help make your visit a success.


Corinne Gianniou

Director of Operations

Neurosurgery is fascinating to me and I am grateful for the opportunity to work for the best neurosurgeon who truly cares about his patients. Dr. Ahuja’s involvement in patient care from beginning to end is second-to-none. There are many reasons I love working for NEA, however the one that succeeds them all is being able to see staff collaborate to provide excellent care for our patients.


Luke Lewitzke

Mobility and Movement Specialist

About Luke

BS in Kinesiology, University of Wisconsin-Milwaukee
Former Fitness Director, Elite Sports Clubs
Certified A.C.E. (American Counsel on Exercise) Personal Trainer since 1999
Weight and Lifestyle Management Specialist since 2002

Jane Parthum, APNP

Advanced Practice Nurse

Joshua Stacy, PA

Physician’s Assistant

Tom Thein, SA

Surgical Assistant

Andrea Roell, PA-C

Physician’s Assistant


Marcia Johnson

Radiology Technologist

Greg Simatic

Radiology Technologist

Jessica Wencka

Receptionist/Imaging Assistant

Medical Records

Alex Keith

Medical Records

Carol Wondolkowski

Medical Records

Sivani Manchu

Medical Records


Kristi Knueppel

Billing Specialist


Christina Balaban

Lead Surgical Coordinator

Ramina Hafner

Surgical Coordinator


Pam Bautch


Julie Preiss

Lead Receptionist

Margaret Synowicz