
EMERGENCY MEDICINE
ADVANCED PRACTICE PROVIDERS

Kimberly Schwab, PA-C
Associate Director,
Advanced Practice Providers
Emergency Department
Lowell General Hospital
Program Director, APP Fellowship
PA Program

Haley Bouchard, PA-C
2020-2021 APP Fellow

Lauren Correia, PA-C

Trisha Lawrence, NP

Kristen McWilliams, PA-C

Allan Parrelli, PA-C
2021 APP Fellow

Anya Diercksen, PA-C

Carlos Flores, NP

Bettina Johnson, NP

Rebecca Rideout, PA-C

Eric Spagnuolo, PA-C

Jessica Sprangers, PA-C

Paul Tierney, PA-C

Marc Roy, MD, FACEP, FAAEM
Medical School
University of Vermont
Residency
Tufts University/Baystate Medical Center
Board Certification
Emergency Medicine
Joined MVEA
2013

David Sciacca, MD, FACEP
Medical School
Tufts University
Internship
Georgetown University Hospital
Residency
John H. Stroger Jr. Hospital of Cook County
Board Certification
Emergency Medicine
Clinical Interests
Acute CHF, PE, emergency airway management
Joined MVEA
2009

Katja Von Tiesenhausen, MD
Medical School
University of Alabama
Residency
Boston University Medical Center
Internal Medicine
Boston University Medical Center
Emergency Medicine
Board Certification
Internal Medicine
Emergency Medicine
Joined MVEA
2013

Marc Roy, MD, FACEP, FAAEM
Medical School
University of Vermont
Residency
Tufts University/Baystate Medical Center
Board Certification
Emergency Medicine
Joined MVEA
2013

David Sciacca, MD, FACEP
Medical School
Tufts University
Internship
Georgetown University Hospital
Residency
John H. Stroger Jr. Hospital of Cook County
Board Certification
Emergency Medicine
Clinical Interests
Acute CHF, PE, emergency airway management
Joined MVEA
2009

Katja Von Tiesenhausen, MD
Medical School
University of Alabama
Residency
Boston University Medical Center
Internal Medicine
Boston University Medical Center
Emergency Medicine
Board Certification
Internal Medicine
Emergency Medicine
Joined MVEA
2013