Experienced Surgeons and Staff. Technically Advanced Surgical Suites

General surgery is a specialty that requires knowledge of and familiarity with a broad range of diseases that may require surgical treatment.  After medical school surgical residency training includes content in ten areas of the body and several organ systems, plus the study of oncology, trauma, burns and emergency medicine.

Expect exceptional surgical care from our well-trained teams. Supported by our national and local team of radiologists, advanced imaging systems, and the skill of Warren General surgeons you can be sure your diagnosis, evaluation and treatment will be excellent.

New Operating room technologies including automatic entrance and egress, advanced surgical site lighting, and ventilation/filtration systems exceed national standards— removing over 98.5% of all airborne particles to prevent infection.

Surgery services include but not limited to:

  • Breast - disease and cancers, lump biopsy, lumpectomy, mastectomy, reconstruction
  • Colon/Intestinal - disease and cancer
  • Gallbladder disease
  • Gastrointestinal Services, GI
  • Hernia - Hiatal, Umbilical, Inguinal, Ventral
  • Parathyroid disease
  • Thyroid - nodules, goiters, cancers
  • Vascular surgery - access for dialysis, IVC filters, ports, pacemakers
  • Soft tissue - lymph node biopsy, tissue removal/biopsy
  • Thoracic - bronchoscopy, pleurodesis, lung biopsy
  • Wound Care

















Physicians and Physician Assistants

Valerie R. Dunn, MD, FACS 

Specialty: General Surgery
Education: State University of New York Health Science Center
Resident: Howard University Hospital. Washington, DC
Certificates: ACLS, ATLS
Awards:  Father George Norton Award - 2015. This is an annual award by nursing staff awarded to a physician who exemplifies the kind spirit of Father George Norton, a priest who ministered to patients at Rochester General Hospital for many years.
Two Crescent Park West, 2nd Floor
Warren PA 16365
Yoko Young Sang, MD, PHM 

Specialty: General Surgery
Education: Florida International University, Miami, FL
Resident: Louisiana State University Health Science Center, Shreveport, LA

Advanced Trauma Life Support
Advanced Cardiac Life Support
Basic Life Support
Fundamentals of Endoscopic Surgery
Fundamentals of Laparoscopic Surgery
Da Vinci Robot Certification 

Two Crescent Park West, 2nd Floor
Warren PA 16365
William Wismer, DO

Specialty: Gastroenterology
Education: Lake Erie College of Osteopathic Medicine, Erie, PA
Resident: Millcreek Community Hospital

Millcreek Community Hospital/LECOM Gastroenterology
The Cleveland Clinic Foundation Hepatology - Chief Fellow


American Board of Internal Medicine
American Board of Internal Medicine - Gastroenterology

Two Crescent Park West, 2nd Floor
Warren PA 16365
Philip S. Vuocolo, MD

Specialty: General Surgery
Education: SUNY Upstate Medical Center
Syracuse, NY
Resident: SUNY Health Science Center
Certification: American Board of Surgery

Two Crescent Park West, 2nd Floor
Warren PA 16365

Lisa Philhower, PA-CLisa Philhower, PA-C | WGH
College: Seton Hill University, Greensburg, PA
Certification: National Commission on Certification of Physician Assistants





Grace Dennis, PA-C
 Gannon University, Erie, PA
Certification: National Commission on Certification of Physician Assistants



Brian Spangler, PA-C
 Mercyhurst University, Erie, PA
Certification: National Commission on Certification of Physician Assistants






Audra Braun, PA-C
Emory University, Atlanta, CA; Allgheny College, PA
Certification/Licensure: National Commision - American Heart Assocation,PA Medical Board, Colorado Medical Board, DEA Certificate and ACLS, PALS & BLS Certification - American Heart Association
Professional Memebership: American Academy of Physicians (AAPA)