ACFAS Regions

Big West Region

Alberta, Arizona, Colorado, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, South Dakota, Utah and Wyoming

Map of the states in the ACFAS Big West Region: Alberta, Arizona, Colorado, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, North Dakota, South Dakota, Utah and WyomingBig West Region President

Austin Matthews, DPM, MHPE, FACFAS
Torrington, WY


Region Officers

Haywan Chiu, DPM, FACFAS
Vice President
Albuquerque, NM

Bryan Hall, DPM, FACFAS
Secretary/Treasurer
Tucson, AZ

Contact the Big West Region


State Liaisons

Vanousheh Ghandhari, DPM, FACFAS  
Arizona

Randal Wraalstad, DPM, FACFAS 
Idaho

David Laha, DPM, FACFAS  
Kansas

Ronald Ray, DPM, FACFAS  
Montana

Rachael Renschler, DPM, FACFAS 
North Dakota

Monica Schweinberger, DPM, FACFAS 
Wyoming

Residency Director Mentors

Michael D. Vaardahl, DPM, FACFAS
North Colorado Medical Center
Greeley, CO

Bryan J. Roth, DPM, FACFAS
Creighton University School of Medicine – Phoenix
Phoenix, AZ

Contact the Mentors





Big West Region Meeting Winner of an Apple Air Pods Pro
05/19/25

Congratulations to Richard Robinson, DPM, FACFAS who attended the Big West Region meeting held in Phoenix, Arizona during ACFAS 2025 and was the winner of an Apple Air Pods Pro. The winner was selected from Big West Region member attendees.

Austin Matthews, DPM, FACFAS, Big West Region President with Richard Robinson, DPM, FACFAS

Resident Members: Get Published in FASTRAC
06/25/25

Have a standout poster or case study from ACFAS 2025 in Phoenix? Submit it to FASTRAC, the College’s open-access journal—and let your ACFAS Region cover the publication fee!

For the second year, each of the nine ACFAS Regions will fully reimburse one resident member’s FASTRAC publication fee. To apply, submit the online form by June 13. All applicants will be notified by June 30 and research must be submitted by July 15.

Awards are granted on a first-come, first-served basis, so don’t wait!


ACFAS Regions Support NFAR
06/25/25

ACFAS proudly introduces the National Foot and Ankle Registry (NFAR) – a groundbreaking clinical data registry created to provide foot and ankle surgeons with powerful insights into surgical outcomes, support evidence-based decision-making, and drive quality improvement across the specialty.

The success of NFAR relies on widespread participation, and the ACFAS Region Presidents Council is stepping up to help make that happen. In 2025, each ACFAS Region will support the launch of at least one new NFAR site - nine sites in total. Each selected site will receive first-year funding support covering the full $2,000 annual NFAR participation fee and $500 setup fee. Funding is awarded on a first-come, first-served basis within each Region.

Complete the NFAR application today and help shape the future of foot and ankle surgery!

Region Goals for First Half of 2025 

  • Attend Region Presidents Council Meeting held during the Annual Scientific Conference in Phoenix, AZ
  • Host ACFAS Big West Region Meeting held during the Annual Scientific Conference in Phoenix, AZ
  • ACFAS Big West Region support of posters and manuscripts presented at the Annual Scientific Conference in Phoenix, AZ