
Division Chief
Welcome from the Division Chief
WMed plays an integral role in disaster medicine, healthcare preparedness, and emergency medical services in Southwest Michigan and statewide through our physician response vehicle program, administrative and leadership roles in multiple prehospital oversight agencies, regional and state level committee participation (our division chief is also the EMS Medical Director for the State of Michigan), national disaster life support foundation course coordination, EMS Fellowship Program offering post-residency specialized training, and much more. We believe that emergency physicians should have a solid foundation in prehospital and disaster medicine and be leaders within these important disciplines. Our residents receive outstanding training throughout their residency and those with a particular interest in these disciplines are afforded numerous opportunities for additional professional development.
Program Features
- Regional Healthcare Preparedness and Disaster Response
Our EMS faculty, fellow, and prehospital resident responded to numerous scenes created by a destructive tornado in 2024. The Kalamazoo County Medical Control Authority (KCMCA) is a pseudo-governmental agency tasked in state statute with oversight of the county’s EMS system. KCMCA is physically housed within WMed’s Department of Emergency Medicine, and has served as a lead agency for the coordination of healthcare preparedness and disaster response for the nine counties in Southwest Michigan (Michigan Region 5) for numerous years. Several examples include: responding to large senior citizen apartment complex fires and providing support at the reception centers, assisting with patient care at major highway pile ups during winter snow storms, setting up and staffing a call center during the early period of the covid-19 pandemic, and organizing/staffing a low acuity covid-19 isolation hotel operation for patient without sufficient means to isolate during their infectious window. Our faculty, residents, and fellows are also members of the Region 5 Technical Rescue Team and respond out to various scenes to provide medical support to the team and patients.
- MI-TESA
MI-TESA is staffed by healthcare professionals from throughout the region but relies heavily upon our residents, faculty, and staff. - 5th District Medical Response Coalition
Our residents and fellows learn about HazMat decontamination in a practical sense. They get to don PPE and take a manikin through the decon line, learning about the steps and challenges in this process. - National Disaster Life Support
As part of the PGY2 and EMS Fellowship curricula, residents and fellows take our Advanced Disaster Life Support Course. - Center for Domestic Preparedness
Interested residents and fellows are encouraged to attend the weeklong Healthcare Leadership Course at the Center for Domestic Preparedness in Anniston, Alabama. Operated by the FEMA, this advanced-level course provides an opportunity for healthcare professionals from various disciplines to train together. Attendees interact with other professionals from around the nation during highly challenging exercises. All course and travel costs are paid for by FEMA.
- MSU-1
During a lake effect snow event, a chain reaction crash occurred on one of our interstates and led to a 195-vehicle pileup. In addition to assisting with patient care, our faculty and prehospital resident had to navigate leaking chemicals and a truck carrying fireworks which had ignited. - Faculty and Staff
William Fales, MD, serves as EMS Medical Director for Kalamazoo County, a core faculty member (past program director) of the EMS Fellowship program, and as core faculty within the residency. Dr. Fales served as the past Regional Medical Director for Healthcare Preparedness, continues to serve as Medical Advisor to the Michigan State Police Emergency Support (Tactical) Team, Bomb Squad, and Emergency Management and Homeland Security Division, and is the State of Michigan EMS Medical Director, Bureau of EMS, Trauma and Preparedness. Active at both the state and national levels, he serves as faculty for the National EMS Medical Directors Course. Dr. Fales has extensive experience in healthcare preparedness, homeland security, and disaster response.. Residents with a high level of interest in EMS use Dr. Fales as a mentor during residency and as a resource after graduation. A former paramedic and firefighter, Dr. Fales frequently responds to EMS incidents throughout the county.
Joshua Mastenbrook, MD, serves as the EMS Medical Director for Allegan County and Associate EMS Medical Director for Kalamazoo County. He is the EMS Fellowship Program Director, Associate Program Director for the residency, EMS elective director, and EMIG faculty advisor. Dr. Mastenbrook has served on a number of regional and national committees, including the EMS Milestones 2.0 writing committee, the State of Michigan Trauma Advisory Committee, MI-TESA Operations Group, the Michigan SaveMiHeart Conference planning committee, Region 5 Medical Control Authority Network (chairperson), Region 5 Trauma Professional Standards and Review Organization (chairperson), and the Kalamazoo Community Research Symposium planning committee (co-chairperson). As a current paramedic and firefighter, he still actively serves his community responding to calls for service in addition to responding to calls within the county as an EMS physician.
John Hoyle Jr, MD, serves as the Associate EMS Medical Director for Pediatrics for Kalamazoo County, the current David Overton Endowed Chair of the Department of Emergency Medicine, and core faculty for both the residency and fellowship programs. Dr. Hoyle is quadrupled boarded – EM, PEM, Peds, EMS. He is an accomplished researcher with >1 million dollars in grant funding, with a focus on prehospital pediatric management. Dr. Hoyle continues to maintain his prehospital skills by responding to scenes within the county with our residents and fellows.
William Selde, MD, serves as the EMS Medical Director for Yellowstone National Park and is one of our core faculty for the fellowship program. He has earned his paramedic and firefighter certificates and was serving his community via a local fire department prior to being deployed overseas as a reserve in the US Navy. Dr. Selde has served as the chairperson of the air medical committee within the NAEMSP organization and occasionally writes articles for JEMS.
Stephanie Van Alsten, MD, serves as the EMS Medical Director for Calhoun County and Indiana Dunes National Park, Associate EMS Medical Director for Kalamazoo County, the Associate Program Director for the fellowship program, and core faculty for the residency program. She is a graduate of our EMS Fellowship program and still responds to prehospital scenes as an EMS physician to maintain her skillset.
Michael Bentley, MPA, serves as the Director of the Division of EMS and Disaster Medicine. He is one of our fellowship core non-physician faculty members. Michael is a former paramedic and hold an EMS Instructor-Coordinator license.
Judy Wheeler, MPM, serves as the Director for the NDLSF program within the state of Michigan, Coordinator for our American Heart Association courses, and Director of our M1 Medical First Responder course. She is one of our fellowship core non-physician faculty members. Judy is a former paramedic, QA manager, and holds an EMS Instructor-Coordinator license.
Emergency Medical Services
At WMed, our residents are exposed regularly to a variety of EMS activities, ranging from the resident-staffed medical support unit (MSU-1) to plenty of hands-on training in a wide range of EMS and rescue practices. Emergency physicians must have a solid understanding of EMS and this is best achieved through a longitudinal experience throughout residency, rather than via an isolated rotation. We also believe that EMS is best mastered by being an active participant and our diverse set of experiences challenge our residents and instill an appreciation for the many facets of EMS that will stay with them throughout their careers.
The Kalamazoo County EMS system is a high-performance, two-tier Advanced Life Support system with robust countywide Basic Life Support first responders. With a population of approximately 260,000, the county is served by two ALS ambulance services covering designated areas of the county and 16 first-responder agencies provided through fire and public safety agencies. The Kalamazoo County Medical Control Authority coordinates and oversees the EMS system and is physically housed within WMed’s Department of Emergency Medicine. This partnership allows for close interaction between residents, faculty, and the EMS system's staff. Through the hard work and dedication of our EMS personnel and an effective EMS system design, cardiac arrest survival in Kalamazoo County is among the highest in the nation.
Key Features of our EMS Program
- MSU-1
Pictured above are our two EMS Physician response vehicles along with the Region 5 Major Incident Support Unit. - Teaching Paramedics
Our EMS Fellow discusses cardiac arrest management with a group of paramedic students at our local community college. - EMS Research
Ample opportunities exist for residents/fellows to participate in EMS research projects. Some develop research projects on their own with assistance from faculty where others join in on existing research projects. MSU-1 provides a unique opportunity to conduct field research and has been involved in NIH-funded prehospital resuscitation research. Students, residents, and fellows frequently present their EMS research findings at a variety of regional, State and national conferences. WMed is pleased to provide supplemental funding, to residents/fellows presenting papers, that is in addition to their standard conference funding.
Resident/Fellow Response Vehicles
Overview
The medical support unit (MSU-1 & 2) Resident & Fellow Physician Response Program is a unique partnership between WMed Emergency Medicine, the Kalamazoo County Medical Control Authority, and our two hospital system, Beacon Kalamazoo and Bronson Methodist. The program places a senior (PGY-2 or PGY-3) EM resident physician and/or EMS Fellow in a dedicated response vehicle for a 24-hour shift. MSU-1 is staffed 24/7/365 whereas MSU-2 is staffed based on 48 hours of EMS Fellow home call per week. The physician response units are directly dispatched by the Kalamazoo County Consolidated Dispatch Authority (911 Center) for responses to multi-casualty incidents, cardiac arrests, significant traumas, tech rescues, and other major EMS incidents. In this way, residents/fellows learn first-hand how EMS operates. Residents/fellows develop the face-to-face relationships with our responders that allow them to more effectively interact during high stress incidents. Residents/fellows are considered field medical control physicians and are authorized by KCMCA to direct all aspects of prehospital care.

MSU-1 Equipment/Systems
- Communications and Navigation
- 800 MHz mobile radio on Michigan Public Safety Communications System
- VHF mobile radio
- 800 MHz portable radio
- VHF fire pager
- iPhone with FirstNet cellular data service
- iPad with FirstNet cellular data service
- Active911 app provides dispatch information, GPS routing, and real-time tracking of MSU-1 and county first responders
- Crewforce app is a two-communication app that interfaces with the 911 center, providing scene/dispatch details, live GPS tracking, and routing information
- Mass Casualty and Special Response
- MCI Trauma Pack
- Multi-port oxygen manifold
- Chemical Antidote Kits
- Radiation and volatile organics detectors
- Carboxyhemaglobin oximeter
- Personal Protective Equipment
- Nomex fire resistant turn out coats
- Helmets with eye protection
- Gloves
- ANSI high visibility vests
- Ballistics vest
- Medical Equipment
- Standard BLS and ALS equipment
- Advanced procedure bag:
- EZ-IO device
- RSI meds
- Igels (pediatric and adult sizes
- Cricothyrotomy kit
- Chest tube set
- ALS drug bag
- Lifepak 15
- Portable ultrasound
- GlideScope
A WMed EMS physician at the scene of a tech rescue with a patient inside the compacting area of a garbage truck.
Medical Support Unit-1 (MSU-1) FAQs
- I don't have an EMS background; will that be a problem when working on MSU-1?
No. Most of our residents don't have previous EMS experience. Residents receive extensive hands-on training before hitting the street in MSU-1.
- How do the paramedics feel about having residents responding in the field?
Our EMS community has been very receptive to MSU-1. Frequently paramedics request MSU-1 respond to scenes that they believe to be particularly educational. Many paramedics realize that this is a wonderful opportunity for them to directly influence how emergency physicians view EMS.
- Don’t ride-alongs in EMS units achieve the same thing as MSU-1?
Doing EMS ride-alongs is a good way to expose residents to EMS. However, in most ride-along programs, residents are passive observers, not active participants. Also, the unit the resident is assigned to may not be catching "the good" calls. MSU-1 is an integral part of our EMS system, serving as on-scene medical control. The unit is available, and expected, to respond to all of the major EMS incidents in the county.
- What if the MSU-1 resident has a complicated case where they need advice?
While MSU-1 residents are encouraged to make autonomous decisions, attending-level advice is never more than a radio click or phone-call away. There is an on-call EMS faculty member each day.
- Is there a chance to sleep during a 24-hour MSU-1 shift?
We realize how important sleep is to residents. Between 2300 and 0800 HRS, residents do not Kalamazoo County medical control radio consult calls, although they may still get an occasional National Park consult. Residents are still on call to respond to major EMS incidents, but overnight these occur relatively infrequently. Generally, if MSU-1 is asked to respond during the night, it is well worth losing a few hours of sleep. Thus, during evening hours, MSU-1 is essentially “home call.”
- Do residents need to live within Kalamazoo County?
Residents do need to live within Kalamazoo County in order to ensure a timely response time.
- What authority do MSU-1 residents have on scene?
Residents are considered to be medical control physicians and operate as representatives of the Kalamazoo County Medical Control Authority.
Annual EMS Day
Our annual EMS Day is held each fall and affords our residents/fellows a great opportunity to experience first-hand many of the challenges of EMS and rescue operations. Squads are created so that there is a mix of PGY level EM residents and rotating residents/students. Each squad rotates through all stations:
- Vehicle Rescue and Extrication Techniques
- Kendrick Traction and In-Car Airway Management
- Prehospital Traumatic Arrest Management
- Adult Cardiac Arrest Management
- MSU-1 Review
- First On-Scene Scenarios
- Ambulance Patient Compartment Orientation
- High-Rise Repelling and In-Air Intubation
The purpose of EMS Day is to expose residents/fellows to some of the many challenges our colleagues in EMS and fire/rescue face every day. As emergency physicians, we typically receive trauma patients after they have been extricated, packaged and, in some cases, decontaminated in the field. EMS Day allows us to better appreciate the processes that occur before patients arrive in the emergency department. Additionally, EMS Day helps to better prepare our residents/fellows to work effectively as part of the EMS Team while staffing our physician response vehicles. Finally, EMS Day is a fun team-building experience that is a welcome break from the normal clinical and educational routine.
- Vehicle Rescue and Extrication Techniques
For many, this is the most popular station. Residents don bunker gear, helmets, and gloves and, with the assistance of skilled firefighters serving as instructors, use standard highway rescue power tools to dissect a car. Cribbing is used to stabilize the vehicles. Windows are shattered and windshields removed. Powered hydraulic spreaders (AKA "Jaws of Life") are used to pry open doors. Hydraulic cutters and electric reciprocating saws are used to sever roof posts allowing for total roof removal. Pneumatic lifting bags are used to lift the entire vehicle in a matter of seconds. This is a rare chance for residents to experience first-hand, the physical and mental challenges of performing extrication techniques during simulated rescue operations. Safety is stressed and an injury-free day is always our primary goal.
- Kendrick Traction and In-Car Airway Management
Stabilizing a closed mid-shaft femur fracture is an important prehospital skill and part of a multi-modal analgesic plan. Managing a patient's airway when they are pinned inside the wreckage of a car offers its own challenges aside of the procedure itself. This station provides hands-on training in these two skills that are required of effective EMS personnel. Residents learn a number of tricks of the trade from our faculty, including the tomahawk intubation technique.
- Prehospital Traumatic Arrest Management
This station covers the prehospital management of blunt traumatic arrest patients including hemorrhage control, oxygenation/ventilation, needle/finger thoracostomy, and disposition decision making in accordance with the associated state EMS protocol for traumatic arrests.
- Adult Cardiac Arrest Management
In this station, squads get the opportunity to manage an out-of-hospital cardiac arrest with a high-fidelity simulator utilizing equipment that would typically be available from first responder and advanced life support units.
- Medical Support Unit-1 Review
At this station, residents and students discuss our prehospital physician response program that is part of our longitudinal EMS curriculum. Medical and protective equipment, communication and dispatch related technologies, and scene response logistics are reviewed.
- First On-Scene Scenarios
Given that our emergency medicine residents and EMS fellows respond to prehospital scenes as part of the longitudinal EMS curriculum, we use this teaching station to cover what to do in the first 5-10 minutes when the EMS physician is first on-scene. Scenarios include a respiratory distress tracheostomy case, an opioid overdose, and a scene safety situation.
- Ambulance Patient Compartment Orientation
Life EMS is the advanced life support ambulance agency that serves the majority of Kalamazoo County. For EMS Day they bring an ambulance to orient our residents and fellows to the patient compartment, giving squads the opportunity to load and unload a power stretcher, review the location of patient care equipment, and gain insight into the available working space. Our senior residents and EMS fellows typically accompany critical patients into the hospital from scenes to which they responded, hence the importance of being familiar with the patient compartment of the ambulance.
- High-Rise Repelling and In-Air Intubation
Who wants to be treated by a physician in the emergency department who has not repelled from the fifth story of a building and intubated a manikin 30 feet off of the ground? Our colleagues from Comstock Fire Department provide our residents, fellows, and students with the opportunity to safely repel down the side of the county fire training tower. We also position a stokes basket with a manikin in midair as a fun challenge to intubate via direct laryngoscopy.