Internal Medicine Doctors in Colorado
Data updated monthly · Last refresh October 2026
2,044 Internal Medicine providers practice in Colorado, including 390 (19%) 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.
2,044providers
390telehealth
Denvertop city
Internal Medicine by city in Colorado
Choose a city to see providers there.
Internal 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. David Abbey, MS MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 224-9508 Dr. Dilaawar Mistry, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(883) 992-2742 Dr. Elizabeth Michell, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 227-9765 Dr. Erin Koenig, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Fiona Thuy Chiu, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 818-5725 Dr. Helen Kilzer, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 224-9102 Dr. Jaime Dennehy, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Jay Dennehy, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Jennifer Hendrick, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 482-3712 Dr. Jennifer Rutberg, MDFort Collins, CO · $24 in drug and device payments (2025) ·
(970) 461-8031 Dr. Joann Mueller, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1640 Dr. Justin Roesch, M.DFort Collins, CO · $96 in drug and device payments (2025) ·
(970) 818-5725 Dr. Kelly KlotzFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 266-3650 Dr. Kirsten Storey, DOFort Collins, CO · $45 in drug and device payments (2025) ·
(970) 229-4600 Dr. Kristin Tempco, DOFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 224-1550 Dr. Kyle Higbee, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 818-5725 Dr. Lance Barker, D.O.Fort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 495-7410 Dr. Leah Selby, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Livia Tsien, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 482-3712 Dr. Lyle Petersen, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 221-6428 Dr. Lyndie Wilkins Parker, D.O.Fort Collins, CO · No drug or device payments recorded (2025) ·
(970) 556-1603 Dr. Masumi Arakane Mancero, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Nathan Brinn, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 266-3650 Dr. Nicola Demacopoulos, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 482-3712 Dr. Reid Sanders, DOFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 488-1666 Dr. Richard Johnson, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 484-9027 Dr. Robert Homburg, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 224-9508 Dr. Robert Juhala, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 482-3712 Dr. Samuel Mast, M.D.Fort Collins, CO · No drug or device payments recorded (2025) ·
(303) 338-4545 Dr. Susan Corcoran-kelly, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 204-0300 Dr. Thomas Klink, MDFort Collins, CO · No drug or device payments recorded (2025) · Telehealth ·
(970) 266-3650 Dr. William Holland, MDFort Collins, CO · No drug or device payments recorded (2025) ·
(970) 224-1550 Dr. Xavier Herrera, MDFort Collins, CO · $17 in drug and device payments (2025) · Telehealth ·
(970) 495-7410 Dr. Stephen Godar, MDFort Morgan, CO · No drug or device payments recorded (2025) ·
(970) 867-4911 Dr. Lauren Rosin, MDFrederick, CO · No drug or device payments recorded (2025) ·
(361) 524-8778 Dr. Durant Abernethy, M.D.Frisco, CO · $179 in drug and device payments (2025) · Telehealth ·
(970) 668-5584 Dr. Mark Norden, MDFrisco, CO · No drug or device payments recorded (2025) ·
(303) 885-4673 Dr. Asma Khan, M.D.Ft Carson, CO · No drug or device payments recorded (2025) ·
(719) 526-2273 Dr. Cornelia Willis, MD, MPHFt Carson, CO · No drug or device payments recorded (2025) ·
(719) 524-2273 Dr. Seth Cornell, M.D.Ft Carson, CO · No drug or device payments recorded (2025) ·
(719) 526-7000 Dr. Dennis Channel, MDGlendale, CO · No drug or device payments recorded (2025) ·
(303) 552-9522 Dr. Elle Ross, D.O. PH.D. M.S.Glendale, CO · No drug or device payments recorded (2025) · Telehealth ·
(888) 663-6331 Dr. Emily MarshGlendale, CO · $37 in drug and device payments (2025) ·
(303) 552-9522 Dr. Sheila Antony, MDGlendale, CO · No drug or device payments recorded (2025) ·
(303) 552-9522 Dr. Andrew Ormsby, MDGlenwood Springs, CO · No drug or device payments recorded (2025) ·
(970) 456-3293 Dr. Gail Mizner, MDGlenwood Springs, CO · No drug or device payments recorded (2025) ·
(970) 945-2840 Dr. Geoffroy Fauchet, M.D.Glenwood Springs, CO · No drug or device payments recorded (2025) ·
(970) 945-6535 Dr. Jennifer York, D.O.Glenwood Springs, CO · No drug or device payments recorded (2025) ·
(970) 618-5418 Dr. Stephen Ferraro, MDGlenwood Springs, CO · No drug or device payments recorded (2025) ·
(509) 710-6439 Conditions Internal Medicine providers in Colorado commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Colorado?There are 2,044 Internal Medicine providers with active NPI records practicing in Colorado, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in Colorado offer telehealth?Yes. 390 of the 2,044 Internal Medicine providers in Colorado (about 19%) report offering telehealth services in CMS data.
Which cities in Colorado have the most Internal Medicine providers?Denver (495), Aurora (242), Colorado Springs (168) have the highest concentration of Internal Medicine providers in Colorado.
How many Internal Medicine providers in Colorado received drug or device company payments?409 of 2,044 Internal Medicine providers in Colorado (20%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Colorado treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
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 Internal Medicine Doctors in Colorado work in independent practices or large health systems?Among 994 Internal Medicine Doctors in Colorado enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 18% through a mid-size group of 10 to 99, and 72% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in Colorado work at?According to CMS facility affiliation records, the Colorado hospitals where the most Internal Medicine Doctors hold privileges are University of Colorado Hospital Authority in Aurora; Uch-Memorial Health System in Colorado Springs; Uchealth Highlands Ranch Hospital in Highlands Ranch.
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