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Meet Our Surgeons

In addition to our Cancer Center physicians, several ENT, General, Gynecology, Neuro, Reconstructive and Urology surgeons round out our team to provide you with the very best care and recovery.

 


Ear, Nose & Throat Surgeons


 

 

Richard Crane, MD, FACS 

OakLeaf Medical Network, Western Wisconsin Ear, Nose & Throat Center
Board Certified:
Otolaryngology
Medical School:
Indiana University School of Medicine, Indianapolis
Residency:
Otolaryngology, Head and Neck Surgery
Fellowship:
Otology and Neurotology, House Ear Clinic in Los Angeles, California
Appointment Phone: (
715) 831-0289


 

 
Michelle Facer, DO

OakLeaf Medical Network,
Northern Pines Ear, Nose & Throat
Board Certified:
Otolaryngology
Medical School:
University of Osteopathic Medicine and Health Sciences, Des Moines, Iowa
Appointment Phone: (7
15) 831-3300
 
Thomas Lowry, MD, FACS

Marshfield Clinic, Eau Claire Center
Board Certified:
Otolaryngology
Medical School:
Texas Tech University Health Sciences Center School of Medicine,  Lubbock,  Texas
Residency: 
Otolaryngology - Head & Neck Surgery, Wilford Hall Medical Center,  San Antonio, Texas
Appointment Phone: (715) 858-4747  
 

General Surgeons


 

 
Daniel Cavanaugh, MD, FACS

Marshfield Clinic, Eau Claire Center
Board Certified: General Surgery, Thoracic Surgery
Medical School:
University of Kansas - School of Medicine,  Kansas City
Residency: General Surgery -
William Beaumont Army Medical Center,  El Paso, Texas; Thoracic Surgery - Brooke Army Medical Center,  San Antonio,  Texas
Appointment Phone: (715) 858-4747
 
Richard Daniels, MD, FACS

OakLeaf Medical Network, Evergreen Surgical
Board Certified: General Surgery
Medical School: Creighton University, Nebraska
Residency: University of North Dakota
Appointment Phone: (715) 832-1044
 
 
Caesar Gonzaga, MD

Marshfield Clinic, Eau Claire Center & Chippewa Center

Medical School:
University of Santo Tomas - Medical School,  Manila,  Philippines
Residency: General Surgery -
Norwegian American Hospital, Chicago, Illinois & Northwestern University Medical Center - St. Joseph Hospital, Chicago
Fellowship:
General Surgery, Northwestern University Medical Center & Thorek Hospital Medical Center, Chicago
Appointment Phone:
(715) 858-4747
 
Steve Immerman, MD, FACS

OakLeaf Medical Network, Evergreen Surgical
Board Certified: General Surgery
Medical School:
Northwestern University, Chicago
Residency: General Surgery,
Northwestern University, Chicago
Fellowship:
Surgical Oncology at Evanston Hospital, Evanston, Illinois
Appointment Phone: (
715) 832-1044
 
David Olson, MD, FACS

Marshfield Clinic, Eau Claire Center & Chippewa Center
Board Certified: General Surgery
Medical School:
Ohio State University - College of Medicine, Columbus, Ohio
Residency: General Surgery,
Tripler Army Medical Center,  Honolulu, Hawaii
Fellowship:
Peripheral Vascular Surgery, Walter Reed Army Medical Center, Washington, DC
Appointment Phone:
(715) 858-4747 

 
Timothy Pitchford, MD

Marshfield Clinic, Eau Claire Center
Board Certified: General Surgery
Medical School:
University of North Dakota - School of Medicine & Health Sciences, Grand Forks
Residency: General Surgery,
Mount Carmel Medical Center,  Columbus, Ohio
Appointment Phone:
(715) 858-4747

 
Anton Sharapov, MD

OakLeaf Medical Network, Evergreen Surgical
Board Certified: General Surgery
Medical School:
Memorial University of Newfoundland, Canada
Residency: General Surgery,
Memorial University of Newfoundland, Canada
Fellowship: Vascular Surgery, Ottawa University
Appointment Phone:
(715) 832-1044
 
Ronald Waits, MD, FACS 

Marshfield Clinic, Eau Claire Center
Board Certified: Surgery
Medical School:
University of Iowa - College of Medicine,  Iowa City
Residency: General Surgery,
St. John Hospital & Medical Center,  Detroit, Michigan
Appointment Phone:
(715) 858-4747 
 

Brent Wogahn, MD, FACS

OakLeaf Medical Network, Evergreen Surgical
Board Certified: General Surgery
Medical School: University of Iowa
Residency: University of Missouri – St. Luke’s Hospital
Appointment Phone: (715) 832-1044

 

 

 Gynecology

 

Steven Stenzel, MD, FACOG

OakLeaf Medical Network, Stenzel Clinic for Women’s Health
Board Certified: Obstetrics and Gynecology
Medical School:
University of Iowa, Iowa City
Residency:
Obstetrics and Gynecology, Butterworth Hospital, Grand Rapids, Michigan
Appointment Phone:
(715) 831-6100  

 


 Neurosurgeons

 
Gary Gasser, MD

Marshfield Clinic,
The Brain & Spine Institute at Sacred Heart Hospital
Board Certified: Neurological Surgery
Medical School: Medical College of Wisconsin, Milwaukee
Residency: University of Colorado Health Sciences Center, Denver 
Fellowship: University of Colorado Health Sciences Center, Denver
Appointment Phone: (715) 858-1777

 
Phillip Porter, MD, FRCS(C)

OakLeaf Medical Network, The Brain & Spine Institute at Sacred Heart Hospital
Board Certified: Neurosurgery
Medical School: University of Toronto, Canada
Residency:
University of Toronto, Western Division Hospital
Fellowship: Cerebrovascular Fellowship, Surgery and Interventional Neuroradiology, University of Toronto and Kremlin-Bicêtre, Paris
 
Appointment Phone:
(715) 858-1777

 

Kamal Thapar, MD, PhD, FRCS(C)

Marshfield Clinic, The Brain & Spine Institute at Sacred Heart Hospital
Board Certified: Neurosurgery 
Medical School: University of Calgary, Canada
Residency: Surgery, University of Toronto School of Medicine
Fellowship: Van Wagenen Fellow, University of Erlangen-Nürnburg, Germany; Skull base surgery, University of Toronto: Epilepsy and Skull Base Surgery, University of Virginia
Appointment Phone: (715) 858-1777 

 

 Reconstructive Surgeons


 
J. Clint Merrick, MD

OakLeaf Medical Network, Rucker & Merrick Plastic Surgery Clinic
Medical School:
Washington University, St. Louis, Missouri
Residency: General Surgery, University of Kentucky
Fellowship: Hand Surgery,
Christine M. Kleinert Institute for Hand Surgery, Louisville, Kentucky
Appointment Phone:
(715) 833-2116

 

Joseph Rucker, MD, FACS

OakLeaf Medical Network, Rucker & Merrick Plastic Surgery Clinic
Board Certified: Plastic Surgery
Medical School:
College of Human Medicine at Michigan State University
Residency:
General Surgery, Mt. Carmel Mercy Hospital, Detroit; Plastic Surgery, Wayne State University School of Medicine, Detroit
Appointment Phone:
(715) 833-2116

 

Diane Schmidt-Krings, MD

Marshfield Clinic, Eau Claire Center
Board Certified: Surgery
Medical School:
University of Minnesota, Minneapolis, Minnesota
Residency: Surgical,
Hennepin County Medical Center, Minneapolis
Fellowship:
Critical Care Medicine, Hennepin County Medical Center, Minneapolis; Plastic & Reconstructive Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
Appointment Phone:
(715) 858-4844 

 

 

 Urology Surgeons

 

 

Michael Hirsh, MD

OakLeaf Medical Network, Western Wisconsin Urology
Board Certified: Urology
Medical School:
Tulane University School of Medicine, New Orleans, Louisiana
Residency: Surgery & Urology,
University of Texas Medical School, Houston
Appointment Phone:
(715) 835-6548

 
James Iwakiri, MD, FACS

OakLeaf Medical Network, Western Wisconsin Urology
Board Certified: Urology
Medical School:
Northwestern Medical School, Chicago, Illinois
Residency: Surgery & Urology,
Stanford University Medical Center
Appointment Phone:
(715) 835-6548

 

David Katz, MD

OakLeaf Medical Network, Western Wisconsin Urology
Board Certified: Urology
Medical School:
Jefferson Medical College, Philadelphia
Residency: Surgery & Urology,
University of Wisconsin-Madison
Appointment Phone:
(715) 835-6548

 

Richard Sazama, MD

Marshfield Clinic, Eau Claire Center
Board Certified: Urology
Medical School:
University of Wisconsin School of Medicine & Public Health, Madison
Residency:
General Surgery & Urology, University of Minnesota - Affiliated Hospitals, Minneapolis, Minnesota
Appointment Phone:
(715) 858-4747 

 
Christopher Tornehl, MD

OakLeaf Medical Network, Western Wisconsin Urology
Medical School:
University of Wisconsin Medical School, Madison
Residency:
Urology, University of North Carolina, Chapel Hill
Appointment Phone:
(715) 835-6548

 

 

 
 
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