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Vermont Gastroenterology

Caring comprehensive diagnosis, treatment, and prevention of digestive diseases.

  • For Patients
    • Patient Resources
    • All FAQs
    • Patient Forms and Downloads
  • Procedures
    • Procedures Overview
    • Procedure FAQs
    • Procedure Prep Instructions
    • Colonoscopy
    • Upper Endoscopy (EGD)
    • Sigmoidoscopy
    • Capsule Endoscopy & Other Procedures
  • Our Providers
    • All Physicians
    • Cory Halliburton
    • David Schwartz
    • Alan Landau
    • Jacek Mysior
    • Allison C. Mack
  • About
    • Our Practice
    • What is Gastroenterology?
    • Green Mountain Surgery Center
  • Contact/Directions
  • Patient Portal & Bill Payment

Allison C. Mack, MSN, FNP-BC

Allison Mack is a board-certified Family Nurse Practitioner with a breadth of experience across primary care, cardiology, perioperative care, and home health. She earned her Master of Science in Nursing from Simmons University and has provided care in both hospital and community settings, including the University of Vermont Medical Center, Northwestern Medical Center, and home-based visits throughout Vermont.

In addition to her clinical practice, Allison has a passion for education and currently serves as clinical adjunct faculty at Vermont State University, where she mentors nursing students in inpatient and psychiatric care. Known for her compassionate approach and strong patient relationships, Allison is committed to delivering personalized, high-quality care to every patient she serves at Vermont Gastroenterology.

In her spare time she enjoys spending time practicing yoga, traveling, and enjoying the beautiful Vermont outdoors with her two kids and golden retriever. 

« Our Providers
Allison Mack

Allison C. Mack, MSN, FNP-BC

white angles top
Green Mountains

Physician Bios

To learn about another physician at our practice, please click on a name below.

Cory Halliburton

Cory Halliburton

M.D.

Alan Landau

Alan Landau

M.D.

David Schwartz

David Schwartz

M.D., FACG, AGAF

Jacek Mysior

Jacek Mysior

M.D.

Allison Mack

Allison C. Mack

MSN, FNP-BC

Green Mountains

Want to Learn More?

If you have questions about scheduling, your upcoming appointment, payment, and other topics related to our practice, visit our “Frequently Asked Questions” page for answers to commonly asked questions.

Read Our FAQs
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Helpful Links

  • Patient Portal
  • Pay Your Bill
  • Procedure Prep Instructions
  • Procedure FAQs
  • About Your Procedure
  • Directions to our office and facilities
  • Privacy Policy
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Vermont Gastroenterology

875 Roosevelt Avenue

Suite 132
Colchester, Vermont 05446 


Phone: 802.864.7483

Fax: 802.660.4337
info@vtgastro.com

Contact Us

Copyright © 2026 Vermont Gastroenterology – 875 Roosevelt Avenue, Suite 132 – Colchester, Vermont 05446
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