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Meet Our Residents


Brittany Blaise, MD

Hometown: Carbondale, Illinois

Undergraduate School: Washington University in St. Louis

Medical School: Southern Illinois University School of Medicine

Why SIU?:  Attending medical school at SIU, I had the opportunity to work with SIU Dermatology early on, and I feel extremely lucky to train with the faculty and residents who helped foster my interest in dermatology. The collegial environment at SIU is unparalleled, and I can’t imagine a better environment to train in! The faculty are welcoming, enthusiastic, and committed to both outstanding patient care and education. In addition, SIU has a very strong dermpath and surgical curriculum, as well as a long history of training excellent clinicians. I am honored and excited to be a part of the SIU Dermatology team! 

Areas of interest: Medical education, melanoma and nonmelanoma skin cancer, psoriasis

Outside interests: Hiking, playing soccer and basketball, crafts, board games, walking/running with my husband, playing with my cats

Bob Schnietz, MD               

Hometown: Edwardsville, Illinois

Undergraduate School: SIUE

Medical School: Southern Illinois University School of Medicine

Why SIU: The dermatology program at SIU offers great clinical training, dedicated faculty, and residents who love being a part of the program. As a rotating medical student, it was evident that the residents and faculty enjoyed working with each other and teaching medical students. A major strength of the program is the monthly dermatology clinics that preliminary medicine interns attend during clinic week. This allows residents to learn about the clinic workflow in addition to feeling like part of the program from day one of intern year.

Areas of interest: Dermatopathology and General Dermatology

Outside interest: Basketball, Tennis, and Traveling


Cassandra Johnson, MD                                       

Hometown:  Spirit Lake, IA

Undergraduate School:  Union College, Lincoln NE

Medical School:  Loma Linda University, Loma Linda, CA

Why SIU?: Everyone was so kind during interviews, and the attendings are genuinely interested in the residents' happiness and success.

Areas of interest:  Peds Derm, Med Derm

Outside interests: ​ Running, my two Persian cats Oliver and Sebastian, traveling, spending time with family and friends.

Emily Konopka, MD                                               

Hometown:  Chicago, IL

Undergraduate School:  Loyola University Chicago

Medical School:  Loyola University Chicago Stritch School of Medicine

Why SIU?:  The people. You'll get it when you meet them. The faculty, staff, and residents here are incredible and create the best possible learning environment. It is also a well-rounded program and there is continuous support for new endeavors and a total commitment to providing the best possible patient care.

Areas of interest:  medical education, dermatopathology

Outside interests: ​ Reading books with my son, cooking, going to farmer's markets, running, singing


Aaron Dwan, MD                                      

Hometown:  Goodyear, AZ

Undergraduate School:  Maryville University

Medical School:  University of Missouri School of Medicine

Why SIU?:  Wholesome family environment in Springfield. The faculty at SIU are warm, engaging, and collegial.

Areas of interest:  Pediatric Dermatology

Outside interests: ​ Homeschooling our children with my wife, doing escape rooms, and  board games with friends.

Jordan Parker, MD                                               

Hometown:  Topeka, KS

Undergraduate School:  Kansas State University

Medical School:  University of Missouri - Columbia

Why SIU?:  When I was in my 4th year of medical school, I had the opportunity to visit SIU Dermatology for a two week rotation and immediately knew this program was special. The faculty and residents were not only incredibly knowledgeable and  wonderful clinicians, they were kind and welcoming and the epitome of the kind of dermatologist I hope to become. Springfield is a "big city" for me, but the people are still the Midwesterners I know and love! SIU is a true gem, and I am excited to learn and grow in such an amazing program.

Areas of interest:  Atopic dermatitis, acne, rural health, medical education, melanoma and non-melanoma skin cancer

Outside interests: ​ Being outdoors, fly-fishing, bow hunting, "crawdadding", camping, kayaking, pet turtles and cat, cooking and experimenting with unusual foods, painting, and playing piano

Brittany Patterson, MD

Hometown:  Crofton, KY

Undergraduate School:  University of Louisville

Medical School:  University of Louisville

Why SIU?:  I loved the sense of community and family I sensed on interview day! SIU was the exact fit for the type of open and relaxed learning environment I was looking for. I was also very excited about the opportunity for true continuity with my patients.

Areas of interest:  General Dermatology, Dermatopathology, Medical Education

Outside interest:  Family time, time with friends, gardening, piano, hiking, kayaking, glamping, traveling


Allison Hamilton, MD

Hometown:  Bloomington, Illinois

Undergraduate School:  Texas Christian University

Medical School:  Southern Illinois University School of Medicine

Why SIU?:  SIU is my home - it is where I fell in love with both medicine and Dermatology. As a medical student at SIU, the faculty and residents welcomed me with open arms from day one. I knew immediately I had found a community full of love and support for one another that extends far beyond day to day work. I have witnessed residents in this program become lifelong friends, and I am so excited to finally be part of a program that I have admired from the beginning. 

Areas of interest:  General Dermatology, Pediatric Dermatology 

Outside interest:  Time spent with family and friends, traveling to new places, walking and running with my dog Sadie, audiobooks, time spent outdoors 

Aliza Hasan, MD

Hometown:  Springfield, Illinois

Undergraduate School:  Southern Illinois University Edwardsville

Medical School:  Southern Illinois University School of Medicine

Why SIU?:   

Areas of interest:  

Outside interest:  

Samantha Tran, MD

Hometown:  Irvine, California

Undergraduate School:  University of California, Irvine

Medical School:  Western Michigan University Homer Stryker MD School of Medicine

Why SIU?:   I love the caring and supportive community of residents, faculty, and staff members. The attendings exemplify outstanding patient care and are truly invested in our medical education.

Areas of interest:  Rheumatologic diseases, cosmetic dermatology, and melanoma and non-melanoma skin cancer.

Outside interest:  Cooking, trying new restaurants, watching international movies/tv shows​