Dr. Brennan is a Board Certified General surgeon. He is a graduate of University of Wisconsin Medical School in Madison, Wisconsin, receiving his general surgery and trauma training at Loyola University Medical Center in Maywood, Illinois..
He is a Fellow of the American College of Surgeons, a position that requires devotion to surgical practice and uncompromising adherence to the ethical standards of the College. Fellows must have graduated from a medical school accepted by the College, be certified by the American Board of Medical Specialty, hold an unrestricted medical license to practice, and be a specialist in surgery.


Dr. Patrick James Brennan, MD
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Doctor Organizations
- ThedaCare Medical Center Of Neenah
Doctor Education
Medical School
1997
University Of Wisconsin School Of Medicine & Public Health
Work Place
Surgical Associates Of Neenah Sc
100 Theda Clark Med Plz # 400
Neenah
WI
54956
USA
+19209446598
Specialties
- Vascular Surgery
- Surgery
- Colorectal Surgery
- Critical Care Medicine
- Other Specialty
Procedures performed
- Abdominal Aortic Aneurysm
- Hemorrhoid Procedures
- Destruction of Lesions on the Anus
- Wound Care
- Breast Biopsy
- Colonoscopy
- Thoracoscopy
- Hemorrhoid Procedures
- Peripheral Vascular Bypass
- Thromboendarterectomy of the Peripheral Arteries
- Bariatric Surgery
- Cholecystectomy
- Laparoscopic Appendectomy
- Thyroidectomy
- Appendectomy
- Laparoscopic Gallbladder Removal
- Small Bowel Resection
- Skin Surgery
- Hernia Repair
- Appendectomy
- Bariatric Surgery
- Peripheral Vascular Bypass
- Spleen Surgey
- Spleen Surgey
- Thoracoscopy
- Thromboendarterectomy of the Peripheral Arteries
- Laparoscopic Appendectomy
- Sigmoidoscopy
- Pilonidal Cyst Surgery
- Varicose Vein Procedures
- Sigmoidoscopy
- Cholecystectomy
Conditions
- Benign Neoplasm of Breast
- Gastrointestinal Hemorrhage
- Intestinal Obstruction
- Femoral Hernia
- Ischemic Bowel Disease
- Abdominal Aortic Aneurysm
- Thoracic Aortic Aneurysm
- Appendicitis
- Malignant Neoplasm of Female Breast
- Cholelethiasis or Cholecystitis
- Inguinal Hernia
- Ventral Hernia
- Abdominal Hernia
- Hemorrhoids
- Reviews
- Q&A
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