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Dr. David C. Duncan, MD

Family Medicine (Family Medicine Physician)

  • Medicare participating

At a glance

In the NPI registry since
2006
Medicare patients seen, 2024
40

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Family Medicine Physician primary
    OK license 12810

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Family Medicine per capita by county →

Medicare patients and services

Medicare patients, 2024
40
Services billed
120
Patients’ average age
84
Most frequent Medicare services, 2023
ServiceTimesPatients
Nursing facility discharge day management, 30 minutes or less554266
Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes202190
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes1514
Telephone medical discussion with physician, 11-20 minutes1212

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 1 companies reported 2 payments worth $48.04 in total to this clinician.

By company
Janssen Biotech, Inc.$48.04
By type
Food and Beverage$48.04

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Colorado →

Other Family Medicine clinicians in Golden

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 23, 2017), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1427065705. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.