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Dr. James S. Jacobs, MD

Radiation Oncology (Radiation Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
45
In the NPI registry since
2007
Medicare patients seen, 2024
36

Licensed in Colorado since 1983, according to the Colorado Department of Regulatory Agencies. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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

  • 2007Registered 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

  • Radiation Oncology Physician primary
    CO license 25084 (first issued 1983; active) · CO license DR0025084 (first issued 1983; active)

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

Map: Radiation Oncology per capita by county →

Where they work

Hospitals

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
36
Services billed
133
Patients’ average age
75
Most frequent Medicare services, 2023
ServiceTimesPatients
Calculation of radiation therapy dose5718
Design and construction of complex radiation treatment device5113
Complex radiation therapy planning2020
Radiation treatment management, 5 treatment sessions1911
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area1712
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved1414
New patient office or other outpatient visit, 60-74 minutes1414
3d radiation therapy planning1212

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.

Other Radiation Oncology clinicians in Denver

Sources

NPI registry (CMS NPPES, November 2026; record last updated June 11, 2021), 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 1861619173. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.