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Faculty

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Internal Medicine Residency Program

Meet the faculty members of the Internal Medicine program at Trinity Health Muskegon, Graduate Medical Education.

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Elizabeth Cleary, DO

Core Faculty
A silhouette of a person

Elizabeth Cleary, DO

Core Faculty

Residency

Internal Medicine

Current Practice Location

Trinity Health Muskegon

Why I chose to practice in Muskegon

Excellent team to work with, great variety in pathology with great practice model for hospitalist group.

Hobbies, Personal Interests, etc.

All things winter! I love to ski and ski patrol in the winter. I also love to hike and mountain bike in the summer.

Medical School

Michigan State University College of Osteopathic Medicine

Current Activities, Research, Subspecialty or Professional Interests

Acute care management, complex medical comorbidities, evidence based and cost-effective medicine.

Jennifer de Longpre, DO 

Jennifer de Longpre', DO

Program Director
Jennifer de Longpre, DO

Jennifer de Longpre', DO

Residency

Internal Medicine

Current Practice Location

Trinity Health Muskegon

Why I chose to practice in Muskegon

I chose to work in Muskegon because of the people. In our residency program, the environment is highly collaborative and team‑oriented. Faculty across disciplines work together to care for patients and to teach residents, and that collegial atmosphere makes Muskegon a wonderful place to learn and to practice. I’m also grateful for colleagues who invest time and compassion in one another’s development, making our residency truly amazing.

Hobbies, Personal Interests, etc.

Outside of work, I stay active and spend lots of time with my family—whether I’m on my Peloton, running, hiking, or skiing. When I’m not out and about, you’ll usually find me relaxing with my beloved Australian shepherd.

Medical School

Michigan State University College of Osteopathic Medicine

Teaching or other awards

Pharmacy Teacher of the Year, 2021

Current Activities, Research, Subspecialty or Professional Interests

Medical Education

Mark Foreman, MD 

Mark Foreman, MD

Core Faculty
Mark Foreman, MD

Mark Foreman, MD

Residency

Internal Medicine and Pediatrics at University of Cincinnati/Cincinnati Children's Hospital

Hobbies, Personal Interests, etc.

I have three boys and have the honor of wearing an additional hat of Pastor's husband. I continue to pursue my true love of soccer by playing year round as well as coach my sons. I also love to cycle, especially mountain bike and occasionally get out to downhill ski.

Medical School

Keck School of Medicine of the University of Souther California

Teaching or other awards

– Mercy Health Muskegon Medical Educator of the Year 2018-2019
– Specialists in Hospital Medicine Executive Team 2014-present
– Former member Hospital Medical Executive committee 2016-2017
– Medical Education Committee 2016-2017

Current Activities, Research, Subspecialty or Professional Interests

Critical Care, Resident Education, Use of Simulation in Medical Education, Clinical Reasoning

Ginsburg, DO 

Zach Ginsburg, DO

Core Faculty
Ginsburg, DO

Zach Ginsburg, DO

Core Faculty

Residency

Internal Medicine

Current Practice Location

Trinity Health Muskegon

Why I chose to practice in Muskegon

Level of illness, diverse population, great coworkers Teaching/Awards (if applicable)

Hobbies, Personal Interests, etc.

Ice hockey, cars/racing, rugby, boxing, chauffeuring around our child.

Medical School

A. T. Still University- Kirksville

Current Activities, Research, Subspecialty or Professional Interests

Critical care

J. Peter Heyboer, MD 

J. Peter Heyboer, MD

Residency Clinic Director
J. Peter Heyboer, MD

J. Peter Heyboer, MD

Residency Clinic Director

Residency

Internal Medicine

Current Practice Location

Trinity Health Grand Haven and Muskegon

Why I chose to practice in Muskegon

I chose to practice in Muskegon because of opportunities for work-life balance. During my practice time, I have appreciated a robust exposure to diverse patient population with wide variety of medical complexity. While in my time away from work, the lakeshore of West Michigan allows multiple options to get outdoors and explore with my family. Teaching/Awards (if applicable):

Hobbies, Personal Interests, etc.

Snow sports, long-distance running, and general adventuring with my family.

Medical School

Medical College of Wisconsin

Current Activities, Research, Subspecialty or Professional Interests

Clinic-based Internal Medicine, Primary Care, and Pediatrics

Stephanie Misciasci, MD 

Stephanie Misciasci, MD

Core Faculty
Stephanie Misciasci, MD

Stephanie Misciasci, MD

Residency

Internal Medicine and Pediatrics at University of Kentucky (2010-2014)

Hobbies, Personal Interests, etc.

I enjoy cooking, crocheting, camping backyard chickens and sustainable living.

Medical School

University of Illinois COM – Peoria, Class of 2010

Current Activities, Research, Subspecialty or Professional Interests

Chair, Pharmaceuticals and Therapeutics Cmte, Member of Scorecard Cmte, Leapfrog CHF Cmte

Marcella Novakosky, MD 

Marcella Novakosky, MD

Core Faculty; Clinic Faculty
Marcella Novakosky, MD

Marcella Novakosky, MD

Dr. Novakosky attended the University of Buenos Aires Medical School graduating with an Honors Diploma. She completed her Internal Medicine residency at St. Mary's Blodgett in Grand Rapids, Mich. and worked for Mercy Health in outpatient care for 18 years.

She is fluent in Spanish, English and French. Dr. Novakosky enjoys being with her family and being outdoors traveling.

MaryEllen Rosel, DO 

MaryEllen Rosel, DO

Core Faculty
MaryEllen Rosel, DO

MaryEllen Rosel, DO

Residency

Internal Medicine

Current Practice Location

Trinity Health Muskegon

Why I chose to practice in Muskegon

I grew up in the West Michigan area and wanted to move back here after medical school to practice near my family. I initially started in private practice in Muskegon and after 6 years joined the Hospitalist Group at Trinity Health Muskegon.

Hobbies, Personal Interests, etc.

I have 3 teenage daughters and am busy following them around with their athletics, musical and educational endeavors. I enjoy boating with my husband, reading, and taking long walks with my Bernadoodle, Stella.

Medical School

Michigan State University College of Osteopathic Medicine

Teaching or other awards

Medical Education Teacher Of The Year – 2014

Current Activities, Research, Subspecialty or Professional Interests

After 10 years of being program director for the IM residency, I took a 2 year break from medical education. I just recently became core faculty and am excited to be back in medical education. I have a strong interest in resident wellness and mental health.

A silhouette of a person 

Bartholomew Sak, MD

Core Faculty
A silhouette of a person

Bartholomew Sak, MD

Core Faculty

No information found.

Eric Sandy, DO 

Eric Sandy, DO

Core Faculty
Eric Sandy, DO

Eric Sandy, DO

Residency

Internal Medicine

Current Practice Location

Muskegon and Lakeshore hospitals

Current Activities, Research, Subspecialty or Professional Interests

Core faculty for ICU, Director of Interdepartmental Relations for Specialist in Hospital Medicine, Chief of Staff at Trinity Health Lakeshore, contractor reviews

Teaching or other awards

Fellow American College of Osteopathic Internist

Medical School

Michigan State College of Osteopathic Medicine

Hobbies, Personal Interests, etc.

In my free time, I enjoy hiking, downhill skiing, boating, fishing and wine tasting.

Why I chose to practice Grand Rapids/Muskegon...

It's a wonderful community to live and work. Good work life balance options right outside your door. Still affordable and very close to everything. The pathology you are exposed to and will manage will prepare you for any fellowship or practice in the country.