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Dr. Aaron J. Burrows, MD

Gastroenterology (Gastroenterology Physician)

  • Medicare participating

At a glance

Years since graduation
27
In the NPI registry since
2006
Medicare patients seen, 2024
89

Licensed in Colorado since 2005, 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

  • 1999Medical school: University of Massachusetts Medical School
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Gastroenterology Physician primary
    CO license 44081 (first issued 2005; transferred to compact physician) · TN license 247696

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

Map: Gastroenterology per capita by county →

Where they work

Hospitals

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
89
Services billed
109
Patients’ average age
71
Most frequent Medicare services, 2023
ServiceTimesPatients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope6767
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk4646
Biopsy of large bowel using a flexible endoscope3030
Removal of polyps or growths of large bowel using an endoscope with mechanical snare2121
Diagnostic exam of large bowel using a flexible endoscope2121
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope1918
Colorectal cancer screening; colonoscopy on individual at high risk1616

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

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Sod Sulf-Potass Sulf-Mag Sulf (sodium, potassium,mag sulfates)
Other prescribers in Denver, CO
63
Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Denver, CO
59
Peg-3350 And Electrolytes (peg3350/sod sulf,bicarb,cl/kcl)
Other prescribers in Denver, CO
59
Peg 3350-Electrolyte (sodium chloride/nahco3/kcl/peg)14

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

Other Gastroenterology clinicians in Denver

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 12, 2026), 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 1366491367. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.