Diagnostic Radiology in Boulder, Colorado
Data updated monthly · Last refresh September 2026
16 Diagnostic Radiology providers practice in Boulder. Listings are drawn from federal public records and are not endorsements.
Diagnostic Radiology providers in Boulder
Listed alphabetically. 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. Charles Bowles, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 440-2273 Dr. Christopher Nusser, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 465-0401 Dr. Dai Hoang, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(952) 595-1100 Dr. David Oppenheimer, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 440-2273 Dr. Francis Donahue, D.O.Boulder, CO · No drug or device payments recorded (2025) ·
(952) 595-1100 Dr. Gustavo Isuani, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 465-0401 Dr. Jie Mao, M.D.Boulder, CO · $283 in drug and device payments (2025) ·
(303) 440-2273 Dr. John Grantham, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 440-3000 Dr. Matthew Blomquist, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 415-7500 Dr. Natalia Gaulke, D.O.Boulder, CO · No drug or device payments recorded (2025) ·
(937) 723-3248 Dr. Nicholas Wickersham, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 532-3500 Dr. Paul King, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 415-7500 Dr. Richard Finer, M.D.Boulder, CO · $409 in drug and device payments (2025) ·
(303) 440-2273 Dr. Robert Helgans, M.D.Boulder, CO · $398 in drug and device payments (2025) ·
(303) 465-0401 Dr. Roger Nichols, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 415-7000 Dr. Stephen Miller, M.D.Boulder, CO · No drug or device payments recorded (2025) ·
(303) 440-2273 Common questions
How many Diagnostic Radiology providers are in Boulder, Colorado?There are 16 Diagnostic Radiology providers with active NPI records practicing in Boulder, according to federal NPPES data refreshed monthly.
Where does this data come from?Provider records 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.
All specialties in Boulder Diagnostic Radiology across Colorado