Emergency Room in Lone Tree, CO



The ER at Sky Ridge Medical Center is committed to delivering Lone Tree and south metro Denver with fast, high-quality care, 24 hours a day. Our team of specialists will provide you with compassionate, expert care before, during and after your emergency.

Our location:
10101 RidgeGate Pkwy
Lone Tree, CO 80124

720-225-1900

Maps & Directions

If you are wondering whether you should visit the ER, see our list of signs and symptoms. To learn more about our hospital and what to expect, view our frequently asked questions.

We accept most insurance and welcome Kaiser Permanente members!

Level II Trauma Center in Lone Tree, CO

Our Level II Trauma Center is conveniently located at I-25 and Lincoln and is open 24/7. Our board certified emergency physicians, physician assistants, pediatricians and nurses are specially trained in advanced life support and emergency treatment. We work in partnership with paramedics and first responders to ensure seamless care is provided to every patient.

We have dedicated teams prepared to initiate immediate and advanced care for:

Learn more about how you can prevent traumatic injuries for you and your loved ones.

Our ER and Level II Trauma Center were designed to provide efficient, effective care that includes:

Reducing Opioid Overdoses

As opioid addiction ravages communities across the U.S., Sky Ridge, along with several other ERs in Colorado, is changing how we treat pain.

Read more about the program

Watch Dr. Adam Barkin, Sky Ridge's Emergency Department Medical Director, discuss our the safety program, and how it aims to reduce opioid overdoses:


About HealthONE's ER Wait Times

HealthONE is the first hospital system in Colorado to publicly post our average ER Wait Times – including separate Pediatric ER Wait Times for our youngest patients. This transparency is part of our commitment to better serve our communities’ healthcare needs and help patients find the quickest access to high-quality emergency medical care across the Metro area.

ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency, call 9-1-1.

The ER wait time represents the time it takes to see a qualified medical professional, defined as a Doctor of Medicine (MD), Doctor of Osteopathy (DO), Physician Assistant (PA) or Advanced Registered Nurse Practitioner (ARNP).

ER wait times represent a four-hour rolling average updated every 30 minutes, and is defined as the time of patient arrival until the time the patient is greeted by a qualified medical professional. Patients are triaged at arrival and are then seen by a qualified medical professional in priority order based on their presenting complaint and reason for visit.

About Our Pediatric Wait Times

Pediatric ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency, call 9-1-1.

ER wait times are approximate and provided for informational purposes only. If you are having a medical emergency, call 9-1-1.

The ER wait time represents the time it takes to see a qualified medical professional, defined as a Doctor of Medicine (MD), Doctor of Osteopathy (DO), Physician Assistant (PA) or Advanced Registered Nurse Practitioner (ARNP).

ER wait times represent a four-hour rolling average updated every 30 minutes, and is defined as the time of patient arrival until the time the patient is greeted by a qualified medical professional. Patients are triaged at arrival and are then seen by a qualified medical professional in priority order based on their presenting complaint and reason for visit.


Board-Certified Emergency Medicine Doctors at Sky Ridge Medical Center


Adam Barkin, MD

Adam Barkin, MD
Medical Director and Chair

Eric Bratz, DO

Eric Bratz, DO

Dan Dobler, MD

Dan Dobler, MD

Christy Donaldson, PA-C

Christy Donaldson, PA-C

Christine Fleming, MD

Christine Fleming, MD

Niki Gray, PA-C

Niki Gray, PA-C

Eric Lung, MD

Eric Lung, MD
Associate Medical Director

Mark Maertins, MD

Mark Maertins, MD

Christopher McCarthy, PA-C

Christopher McCarthy, PA-C

Amy Shoopman, PA-C

Amy Shoopman, PA-C

Aaron Van Hook, PA-C

Aaron Van Hook, PA-C