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Become a member and receive career-enhancing benefits

Our top priority is providing value to members. Your Member Services team is here to ensure you maximize your ACS member benefits, participate in College activities, and engage with your ACS colleagues. It's all here.

Become a Member
Become a member and receive career-enhancing benefits

Our top priority is providing value to members. Your Member Services team is here to ensure you maximize your ACS member benefits, participate in College activities, and engage with your ACS colleagues. It's all here.

Become a Member
ACS
ACS Fellow Since 2025

Alexandra Herrero Leon Guerrero, MD FACS

Contact Information

Board Certification

  • American Board of Surgery - General Surgery

Society Memberships

  • Soc of Am Gast End Surgs

Additional Information

Gender

Female

Type of Practice

Private practice (solo or small group)

General Surgery

Subspecialties and Areas of Clinical Concentration

Breast Disease/Cancer

  • axillary dissection
  • benign breast disease
  • breast cancer
  • Breast Disease/Cancer
  • duct excision/microdochotomy
  • lumpectomy
  • lymph node biopsy
  • mastectomy
  • radical mastectomy
  • sentinel node

Endocrine (Gland)

  • adrenal cancers/tumors
  • adrenal surgery
  • pancreatic endocrine tumors
  • pheochromocytoma

Abdomen and Digestion Disorder/Procedure

  • Abdomen and Digestion Disorder/Procedure
  • abdominal pain
  • adhesion removal
  • anti-reflux procedures
  • appendectomy
  • esophagus perforation
  • feeding tubes
  • fundoplication - laparoscopic
  • gastric cancer
  • gastroesophageal reflux disease
  • malrotation
  • peptic ulcer disease
  • peritonitis
  • splenectomy

Liver, Gallbladder, Pancreas Disor/Proc

  • bile duct surgery
  • gallstone disease
  • laparoscopic cholecystectomy
  • Liver, Gallbladder, Pancreas Disor/Proc

Hernia Procedures

  • abdominal hernia
  • component separation
  • epigastric hernia
  • femoral hernia
  • Hernia Procedures
  • inguinal hernia
  • laparoscopic hernia repair
  • paraesophageal hernia
  • umbilical hernia
  • ventral hernia

Minimally Invasive Procedures

  • laparoscopic surgery

Surgical Oncology (Cancer/Tumors)

  • adrenal tumors
  • anal cancer/tumors
  • colon cancer/polyps
  • esophagus cancer/tumors
  • gastrointestinal cancer/tumors

Hospital Appointments

Guam Memorial Hospital Association

Tamuning, GU

General Surgery

10/2019—Present

Hafa Adai Specialist Group

Tumon, GU

General Surgery

10/2019—Present

Guam Memorial Hospital

Tamuning, GU

Chairman

10/2021—10/2023

Guam Regional Medical City

Dededo, GU

General Surgery

11/2024—Present