Allergists (Internal Medicine) in Colorado
Data updated monthly · Last refresh October 2026
12 Allergy & Immunology (Internal Medicine) providers practice in Colorado, including 2 (17%) offering telehealth. The largest concentration is in Aurora. 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.
12providers
2telehealth
Auroratop city
Allergy & Immunology (Internal Medicine) by city in Colorado
Choose a city to see providers there.
Allergy & Immunology (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. Allen Adinoff, MDAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Andrew Fontenot, MDAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Jenny StittAurora, CO · $5,275 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Richard Luzietti, M.D.Aurora, CO · No drug or device payments recorded (2025) ·
(720) 748-2900 Dr. Robert Nathan, MDColorado Springs, CO · No drug or device payments recorded (2025) ·
(719) 473-0872 Dr. W Donald Cooke, MDDurango, CO · $437 in drug and device payments (2025) · Telehealth ·
(970) 259-0780 Dr. Paul Schkade, MDLakewood, CO · No drug or device payments recorded (2025) ·
(303) 234-1067 Dr. Snehal Patel, D.OLakewood, CO · No drug or device payments recorded (2025) ·
(303) 234-1067 Dr. Jason Catanzaro, M.D.Lone Tree, CO · No drug or device payments recorded (2025) ·
(303) 338-4545 Dr. Robert Pace, MDLongmont, CO · $19 in drug and device payments (2025) ·
(303) 776-0868 Dr. Kevin O'brien, M.D.Thornton, CO · No drug or device payments recorded (2025) ·
(720) 929-8300 Common questions
How many Allergy & Immunology (Internal Medicine) providers are in Colorado?There are 12 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in Colorado, according to federal NPPES data refreshed monthly.
Do Allergy & Immunology (Internal Medicine) providers in Colorado offer telehealth?Yes. 2 of the 12 Allergy & Immunology (Internal Medicine) providers in Colorado (about 17%) report offering telehealth services in CMS data.
Which cities in Colorado have the most Allergy & Immunology (Internal Medicine) providers?Aurora (5), Lakewood (2), Durango (1) have the highest concentration of Allergy & Immunology (Internal Medicine) providers in Colorado.
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.
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