Medical College of Wisconsin Cardiac Electrophysiology
About our care
All pacemakers and defibrillators at Froedtert are implanted and followed by Electrophysiology specialists. This means that the physician performing the procedure has a large experience with complex device management and performs a large number of procedures. These factors are associated with a lower risk for the patient and maximize the prospects for a good long-term result. In addition to inpatient procedures and management, the Arrhythmia Service maintains a large outpatient practice for long-term management of patients with complex rhythm problems, pacemakers or defibrillators. Electrophysiologists are available for physician consultation as well as patient self-referral.
MCW Electrophysiologists manage patients from hospitals around the state and northern Illinois while on call 24 hours a day to manage emergencies. Froedtert's emergency department and Flight for Life helicopter access makes it possible to manage difficult problems quickly and successfully.
Meet Our Team
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Berger_Marcie_MG_0395HiResCropped_V2.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Marcie G. Berger, MD, FACC
Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Birchak-John-3F0A8837.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
John C. Birchak, MD
Assistant Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Fayn_Evgueni2.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Evgueni Fayn, MD, FACC, FHRS
Assistant Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Oujiri_James.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
James Oujiri, MD
Associate Professor
![headshot](https://opd-resources.mcw.edu/OPD-File-Library/Provider-Photos/Roth_James.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
James A. Roth, MD
Associate Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Rubenstein_Jason002.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Jason C. Rubenstein, MD, FACC, FHRS
Associate Professor
![headshot](https://opd-resources.mcw.edu/OPD-File-Library/Provider-Photos/Singh_Dalip.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Dalip Singh, MD, FACP, FACC, FHRS
Associate Professor
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Bergesen_Samantha2019.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Samantha Bergesen, APNP
Nurse Practitioner
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Dohmen_Claire1.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Claire S. Dohmen, MSN, RN, APNP
Nurse Practitioner
Erin Flanagan, PA-C
Physician Assistant
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/GallagherJennifer3F0A7353.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Jennifer M. Gallagher, PA-C
Physician Assistant
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Harvey-Maria-3F0A9515.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Maria Harvey, MSN, APNP, AGPCNP
Nurse Practitioner
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/Johnson_Megan2020.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Megan M. Hyke, MSN, APNP, NP-C
Nurse Practitioner
![headshot](https://opd-resources.mcw.edu/FileLibrary/OPD/Providers/photos/OConnor_Alyssa2022.jpg?w=200&h=275&mode=crop&anchor=middlecenter&scale=both 200w)
Alyssa K. O'Connor, RN, BSN, MSN, ACNP-BC
Nurse Practitioner
Comprehensive Treatment Options
Research
As the region's only academic electrophysiology group, MCW Arrhythmia Clinic physicians conduct and participate in local and national research studies and clinical trials related to arrhythmia and other heart and vascular conditions. If you are interested in participating in a trial, or referring a patient for one, please contact us at (414) 955-6778 or DOMCVClinTriStaff@mcw.edu.Electrophysiology Fellowship
The MCW Electrophysiology group is pleased to announce the initiation of a ACGME-certified electrophysiology fellowship.
For more details please visit our Electrophysiology Fellowship page.
Contact Us
To transfer a patient or consult with a specialist (for physicians and staff only):
Call the Access Center at (414) 805-4700 or (877) 804-4700. Nurses are available 24 hours a day, seven days a week.
Patient Appointments
Please call (414) 777-7700 to make an appointment at one of our clinic locations.
![Medical College of Wisconsin Google map location](/-/media/MCW/Common/Google-Maps/location430435866880211208zoom13.png?w=600&h=450&mode=crop)