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Dr. Mark W. Boyce

Geriatric Medicine (Geriatric Medicine (Family Medicine) Physician)

400 E 3rd 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) 786-8364

  • Medicare participating

At a glance

Years since graduation
45
In the NPI registry since
2006
Medicare patients seen, 2024
19

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

  • 1981Medical school: University of Minnesota 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

  • Geriatric Medicine (Family Medicine) Physician primary
    MN license 26920
  • Sports Medicine (Family Medicine) Physician
    MN license 26920

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

Map: Geriatric Medicine per capita by county →

Where they work

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
19
Services billed
26
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes6342
Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes5842
Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes3026
Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes1513

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 Geriatric Medicine clinicians in Duluth

Sources

NPI registry (CMS NPPES, November 2026; record last updated August 16, 2011), 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 1508881186. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.