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Dr. Daniel D. Cornett, MD

Gastroenterology (Gastroenterology Physician)

1012 E 2nd St
Duluth, MN 55805

Who else practices at this address →

St. Louis County includes primary care (17% of residents) and dental (35% of residents) shortage areas. About shortage areas

Call (218) 249-7940

  • Medicare participating

At a glance

Years since graduation
23
In the NPI registry since
2006
Medicare patients seen, 2024
318

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

  • 2003Medical school: University of Kentucky College of Medicine
  • 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
    MN license 63017

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

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
318
Services billed
491
Patients’ average age
70
Most frequent Medicare services, 2023
ServiceTimesPatients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare9292
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope8079
Established patient office or other outpatient visit, 20-29 minutes5239
Biopsy of large bowel using a flexible endoscope3131
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes1919
Colorectal cancer screening; colonoscopy on individual at high risk1919
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk1818
New patient office or other outpatient visit, 45-59 minutes1717
Diagnostic exam of large bowel using a flexible endoscope1717
Review by radiologist of image from tube placement into bile duct using an endoscope1412

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.

Other Gastroenterology clinicians in Duluth

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 17, 2018), 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 1548228992. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.