Emergency Medicine Doctors in Colorado
Data updated monthly · Last refresh October 2026
1,434 Emergency Medicine providers practice in Colorado, including 8 (1%) offering telehealth. The largest concentration is in Denver. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
1,434providers
8telehealth
Denvertop city
Emergency Medicine by city in Colorado
Choose a city to see providers there.
Emergency Medicine providers in Colorado
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Colleen Foster, M.D.Longmont, CO · No drug or device payments recorded (2025) ·
(720) 718-1200 Dr. Herbert OgdenLongmont, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. James Hogan, MDLongmont, CO · No drug or device payments recorded (2025) ·
(303) 776-1234 Dr. Julie Hall, MDLongmont, CO · No drug or device payments recorded (2025) ·
(970) 480-1981 Dr. Leslie ArmstrongLongmont, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. Linda KeyesLongmont, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. Lindsey Cesca, M.D.Longmont, CO · No drug or device payments recorded (2025) ·
(303) 651-5111 Dr. Michael ReghittoLongmont, CO · No drug or device payments recorded (2025) ·
(303) 651-5000 Dr. Nicholas Tomasi, DOLongmont, CO · No drug or device payments recorded (2025) ·
(303) 651-5111 Dr. Paul SullivanLongmont, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. Wyatt HallLongmont, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. Geoffrey Geer, M.D.Louisville, CO · No drug or device payments recorded (2025) ·
(303) 673-1111 Dr. Joe Turnbow, M.D.Louisville, CO · No drug or device payments recorded (2025) ·
(303) 664-1963 Dr. Maria Regina Oakes, MDLouisville, CO · No drug or device payments recorded (2025) ·
(303) 673-1003 Dr. Ming-jay Wu, M.D.Louisville, CO · No drug or device payments recorded (2025) ·
(303) 673-1111 Dr. Ronald Linton, M.D.Louisville, CO · No drug or device payments recorded (2025) ·
(303) 673-1111 Dr. Eric FuhrmannLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Eugene ReinersmanLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Garrett LeeLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Hadley Trotter, MDLoveland, CO · No drug or device payments recorded (2025) ·
(970) 350-6244 Dr. Jasjot JoharLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Jeannine Walters, DOLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Jeffrey BakerLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Mark DixonLoveland, CO · $24 in drug and device payments (2025) ·
(970) 635-4071 Dr. Michael HuntingtonLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Peter Maxwell, MDLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Regina SheddLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Scott SundheimLoveland, CO · No drug or device payments recorded (2025) ·
(303) 306-7783 Dr. Trina BogartLoveland, CO · No drug or device payments recorded (2025) ·
(970) 635-4071 Dr. Ronald Genova, M.D.Lyons, CO · No drug or device payments recorded (2025) ·
(303) 823-6619 Dr. Alexis Garza, MDMontrose, CO · No drug or device payments recorded (2025) ·
(970) 240-7249 Dr. Andrew Yeowell, MDMontrose, CO · No drug or device payments recorded (2025) ·
(970) 240-2211 Dr. Avery Mackenzie, M.D.Montrose, CO · No drug or device payments recorded (2025) ·
(970) 240-7180 Dr. Cynthia Lonneman, MDMontrose, CO · No drug or device payments recorded (2025) ·
(218) 525-1579 Dr. Daniel WindelsMontrose, CO · No drug or device payments recorded (2025) ·
(970) 249-2211 Dr. David Dreitlein, MDMontrose, CO · No drug or device payments recorded (2025) ·
(970) 252-8896 Dr. Douglas Borgo, MDMontrose, CO · No drug or device payments recorded (2025) ·
(970) 240-2211 Dr. Jacob Nacht, M.D.Montrose, CO · No drug or device payments recorded (2025) ·
(970) 249-2211 Dr. Kerstin May-michelich, MDMontrose, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 252-2691 Dr. Kevin Mcallister, M.D.Montrose, CO · No drug or device payments recorded (2025) ·
(970) 249-2211 Dr. Matthew Cotham, M.D.Montrose, CO · No drug or device payments recorded (2025) ·
(970) 240-7180 Dr. Neil Waldman, MDMontrose, CO · No drug or device payments recorded (2025) ·
(970) 240-2211 Dr. Sterling Walker, MDMontrose, CO · $24 in drug and device payments (2025) ·
(970) 240-2211 Dr. Kristin Mccoy, MDMonument, CO · $78,328 in drug and device payments (2025) ·
(303) 475-9839 Dr. Laurie Coryell, M.D.Monument, CO · No drug or device payments recorded (2025) ·
(719) 571-7070 Dr. Randolph Maul, MDMonument, CO · No drug or device payments recorded (2025) ·
(719) 659-1170 Dr. Richard Hartl, M.D.Monument, CO · No drug or device payments recorded (2025) ·
(719) 481-2335 Dr. Anne Winiarski, MDMorrison, CO · No drug or device payments recorded (2025) ·
(303) 717-4883 Dr. Anthony Velasquez, M.D.Pagosa Springs, CO · No drug or device payments recorded (2025) ·
(970) 731-3700 Dr. Daniel Renner, MDPagosa Springs, CO · $121 in drug and device payments (2025) ·
(970) 731-3700 Common questions
How many Emergency Medicine providers are in Colorado?There are 1,434 Emergency Medicine providers with active NPI records practicing in Colorado, according to federal NPPES data refreshed monthly.
Do Emergency Medicine providers in Colorado offer telehealth?Yes. 8 of the 1,434 Emergency Medicine providers in Colorado (about 1%) report offering telehealth services in CMS data.
Which cities in Colorado have the most Emergency Medicine providers?Denver (286), Aurora (245), Colorado Springs (147) have the highest concentration of Emergency Medicine providers in Colorado.
How many Emergency Medicine providers in Colorado received drug or device company payments?132 of 1,434 Emergency Medicine providers in Colorado (9%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Emergency Medicine Doctors in Colorado work in independent practices or large health systems?Among 652 Emergency Medicine Doctors in Colorado enrolled in Medicare, 5% bill through a solo or small practice with fewer than 10 clinicians, 32% through a mid-size group of 10 to 99, and 63% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Emergency Medicine Doctors in Colorado work at?According to CMS facility affiliation records, the Colorado hospitals where the most Emergency Medicine Doctors hold privileges are University of Colorado Hospital Authority in Aurora; Uch-Memorial Health System in Colorado Springs; Denver Health & Hospital Authority in Denver.
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