Penrose Hospital

Penrose Hospital - Pathology Residency

ACGME Accredited

Penrose Hospital offers an accredited four-year training program that combines anatomic and clinical pathology. The Pathology Residency Program is a unique community-based program located along the eastern edge of the southern Rocky Mountains and the base of Pikes Peak. 

Catherine Larson, Residency Coordinator
2222 N. Nevada Ave
Colorado Springs, CO, 80907
Phone: 719-776-5816
Fax: 719-776-2108

Join our program

This program brings in two new residents each year to work alongside the residents that are in their second, third, and fourth years. The small size of our program allows for a cohesive and friendly atmosphere that fosters learning and allows for individualized training and development. Residents train in a private practice setting with an emphasis on close contact with clinicians, timely sign-out of cases, and appreciation of the administrative and managerial aspects inherent in running a successful pathology practice. Residents are exposed to a plethora of both primary surgical pathology as well as rare and challenging cases. Upon graduation, residents feel confident in their knowledge and abilities and adapt well to a variety of work environments. 

Pathology Residency FAQs

Penrose Hospital offers an accredited four-year AP/CP residency in a unique community-based program. There are 11 staff pathologists and up to eight pathology residents. The small size of the program allows for a cohesive and friendly atmosphere that fosters learning and allows for individualized training and development. Residents begin their surgical pathology training by working on every case at the microscope alongside a staff pathologist. As a resident’s skills increase, they are given graduated responsibility, eventually relying on the staff only for case review and finalization. 

This community-based program also gives residents the opportunity to gain an appreciation for the administrative and managerial parts of running a pathology practice. Residents will see a multitude of cases, ranging from standard care to rare and challenging cases. All these experiences will prepare residents and help them adapt to various work environments. 

Two residents are assigned to the surgical pathology rotation each week, and both are assigned a staff pathologist — the residents alternate grossing and sign-out days. On grossing days, the resident is responsible for grossing the surgical specimens and performing intra-operative frozen sections. Our pathology assistant covers some of the grossing duties, leaving the more complicated and interesting cases for the resident. 

On sign-out days, the resident is responsible for reviewing and dictating the previous day's specimens with their assigned staff. Residents begin their surgical pathology training working closely with staff pathologists. As skills increase, they are given more responsibility, eventually relying on the staff only for case review and finalization. 

Call is split evenly between the residents and taken a week at a time (Friday-Thursday), amounting to eight or nine call weeks per year. Call is combined AP/CP, and all laboratory needs are directed to the resident. Most calls originate from the blood bank and can be handled over the phone. Occasionally, residents are called in to perform an after-hours frozen section or review a critical slide, among other duties. 

On the weekends, the resident on-call is responsible for grossing a small volume of specimens and reviewing any flagged peripheral blood smears. There are no weekend autopsy duties. Junior residents are responsible for covering one holiday call per year. Residents can trade call weeks to accommodate their schedules. 

Our schedules are flexible. Residents are given four months of elective time, which many residents use to rotate at outside institutions they are considering for fellowship. Flexibility is also shown in scheduling vacation time. Vacation can be taken a day at a time or in blocks per the resident's discretion as long as ample notification is given to the chief resident, who is responsible for making the schedule and ensuring services are covered. 

Yes. We encourage all applicants interested in attending our program to consider pursuing a one-month externship as part of their medical school rotations. Several of our current and past residents did externships at our program before joining us for residency. To discuss joining us for your externship, contact Catherine Larson at:

[email protected] 

Our residents have successfully obtained fellowships in the field of study and the location of their choice. Ample elective time allows residents to freely pursue away rotations at outside institutions. Recent residents have accepted fellowships in hematopathology, dermatopathology, gastrointestinal pathology, cytology, molecular genetics, microbiology, pediatric pathology, and forensics. 

To view a list of recent graduates and their post-graduate training, 

Click Here


Catherine Larson,
Residency Coordinator
Ryan Okal, MD
Program Director
James Atkinson, DO
Ryan Coates, MD
Jessica Corirossi, MS, PA
John Eckman, PA
Alexia Ghazi, DO
Jenny Hoffmann, MD
Barret Lawshe, MD
Erin Merboth, MD
David Newton, MD
Sammie Roberts, MD
Blake Rodman, DO
Tania Saliba, DO
Sigurd Torgerson, MD

Why choose our location?

Training occurs almost exclusively at the 364-bed anchor hospital, Penrose Hospital. The hospital provides specialized services like secondary and tertiary medical-surgical service, cancer care, cardiac care, emergency trauma care, and physical rehabilitation. 

Experience at the Cancer Center enables residents to partake in an increasing number of unusual cases seen in the pathology department, located on the second floor, and opportunities to use state-of-the-art equipment like flow cytometry, an in-house blood bank donor center, and cytogenetics laboratories. 

Colorado Springs Information

Colorado Springs Information

Colorado Springs is a young, active urban community situated at the base of Pikes Peak. An extensive park system and countless hiking, mountain biking, and running trails are found throughout the city and surrounding areas. Nearby points of interest include the Garden of the Gods, Seven Falls, Pikes Peak, Air Force Academy, Royal Gorge, Cheyenne Mountain Zoo, and the historic districts of Manitou Springs and Old Colorado City.  

With colleges and military bases nearby, the downtown Colorado Springs area hosts many urban activities and offers an active nightlife. Denver is located 65 miles north of Colorado Springs and offers plentiful cultural metropolitan activities and professional sporting events. Boasting more than 250 days of sunshine per year, Colorado Springs has a mild climate and a beautiful, energetic atmosphere at the base of the famous Pikes Peak.  


Year 4

About Calvin Streeter

Calvin is a veteran who served as an infantry officer in the Indiana Army National Guard. Outside of residency, he enjoys skiing, music, lifting weights, and traveling. 

Why he chose this program

Calvin completed an internship in general surgery here in Colorado before transitioning to pathology; he chose to complete his residency at Penrose so that he could continue living in Colorado. 

Special interest

Forensic pathology 

Year 3

About Caitlin Porter-Smith

Caitlin is originally from north Texas and attended Rice University for undergraduate school. When not at residency, Caitlin can be found hanging out with her husband, two amazing little kids, and giant sheep-a-doodle.

Why she chose this program

Caitlin chose the Penrose Pathology Residency program for the unmatched one-on-one teaching given by awesome attendings and varied case exposure. While everyone works hard, the program also values work-life balance and personal wellness.

Special interests

Hematopathology, gynecologic pathology, placental pathology 

Year 2

About Logan Ritter

Logan is from a small town in south Louisiana. He enjoys the outdoors and likes to go hiking, camping, and rock climbing. 

Why he chose this program

Logan chose the Penrose Pathology Residency program due to the pathology group’s small, tight-knit community-hospital feel. 

Special interests

Forensic pathology, dermatopathology, hematopathology 

Year 1