- AdventHealth
We are proud to celebrate 29 outstanding AdventHealth Medical Group Rocky Mountain Region physicians who have been recognized with 5280 Magazine’s 2025 Top Doctor award!
This honor reflects not only their clinical excellence but also the trust and respect they’ve earned within the Denver community. What makes this recognition even more meaningful is that each physician was nominated and voted by fellow doctors — a true sign of the respect they’ve earned from their peers.
We are grateful for the dedication, expertise, and whole-person care our doctors provide every day. Their recognition reaffirms what we already know, excellence and empathy go hand in hand in our approach to care.
Learn more about our award-winning colleagues who exemplify the compassionate, high-quality care that defines AdventHealth.
Congratulations to:
Hoang V Dang, MD - Family Medicine
Yousuf A. Gaffar, MD - Medical Oncology
Samuel F. DeStefano, MD, MSE – Neurology
Scott E. Hallgren, DO, FACP, FASGE – Gastroenterology
Karin G. Spears, MD - Obstetrics and Gynecology
Dawn Owens Robinson, MD, OBGYN - Obstetrics and Gynecology
Douglas Dennis, MD - Orthopedic Surgery
Douglas G. Adler, MD – Gastroenterology
Nadine G. Mikhaeel-Kamel, MD- Medical Oncology
Kevin K. Nagamani, MD - Orthopedic Surgery
Daniel Hamman, MD - Orthopedic Surgery
Jillian J. Tyler, MD - Obstetrics and Gynecology
Derek R. Johnson, MD - Orthopedic Surgery
Thomas E. Collins, MD, FACS, MHCDS – Surgery
Mark S. Fitzgerald, MD - Orthopedic Surgery
In Sok Yi, MD - Surgery of the Hand
Angela Bohnen, MD - Neurological Surgery
Erasmus G. Morfe, DO - Physical Medicine and Rehabilitation
Jason Peragine, MD - Pain Medicine
J. Adair Prall, MD - Neurological Surgery
Wissam Asfahani, MD - Neurological Surgery
David VanSickle, MD - Neurological Surgery
John Hudson, MD - Neurological Surgery
Cinthia T. Bateman, MD - Cardiovascular Disease
Joseph Burchenal, MD - Interventional Cardiology
Ira M. Dauber, MD - Cardiovascular Disease
Dimitri Kaufman, MD - Interventional Cardiology
Karyl M. VanBenthuysen, MD - Cardiovascular Disease
Joshua Beckman, MD – Neurological Surgery
Recent News
AdventHealth, Intermountain Health plan partnership to enhance healthcare for Denver metro communities
AdventHealth and Intermountain Health plan to unite their Denver-area services to bring more accessible, connected care to the area’s growing communities.
Comprehensive cancer care arrives at AdventHealth Winter Garden
The AdventHealth Cancer Institute at Winter Garden expands access to specialized care, advanced treatments and whole-person support.
New AdventHealth Comprehensive Women's Center brings coordinated care closer to home for Seminole County families
AdventHealth opened a new Comprehensive Women’s Center at Lake Mary Health Park, bringing specialized women’s health services together under one roof.
AdventHealth to open Fruitland Park's first-ever ER
AdventHealth Fruitland Park ER will open by July 28, bringing 24/7 emergency care to the community.
Drop-in center gets life-saving AED through The Pepin Institute at AdventHealth Tampa
Thanks to The Pepin Heart Institute at AdventHealth Tampa, supported by the Pepin Family Foundation, there is now an AED available at The Drop in Tampa.
Highlands County patients gain new hope in controlling high blood pressure
A minimally invasive procedure at AdventHealth Sebring is helping patients gain control of hypertension.
Pediatric patients treated to special screening of ‘Toy Story 5’ at AdventHealth for Children
With help from Walt Disney World Resort, kids in the hospital got the chance to watch ‘Toy Story 5,’ complete with visits from Woody and Jessie.
AdventHealth brings 24/7 emergency care closer to home in St. Johns County
AdventHealth opened its first freestanding emergency room in St. Johns County, adding around-the-clock emergency care to St. Augustine.
AdventHealth Lenexa City Center adds new Progressive Care Unit to meet needs of growing community
AdventHealth Lenexa City Center is expanding care close to home with the opening of a new progressive care unit (PCU).
Expanded heart care, faster MRI exams now available at AdventHealth DeLand
Patients across West Volusia now have access to expanded heart care and faster, more comfortable MRI exams at AdventHealth DeLand.
Helping fans feel whole: UChicago Medicine AdventHealth to provide care and wellness support at the 2026 Presidents Cup
Fans at the 2026 Presidents Cup will have access to care and wellness resources designed to help them feel safe, supported and whole.
A lifelong home for Down syndrome care that improves lives and advances medical care
The SMILE with Stella Tremonti Down Syndrome Clinic is the only lifespan clinic in the Southeast caring for both children and adults with Down syndrome.