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Dr. Mark D. Sims, MD

Hospitalist (Hospitalist Physician)

  • Medicare participating

At a glance

Years since graduation
14
In the NPI registry since
2012
Medicare patients seen, 2024
97

Licensed in California since 2014, according to the Medical Board of California. 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. What an NPI is

Education and training

  • 2012Medical school: University of Missouri, Columbia School of Medicine
  • 2012Registered with an NPI (national billing number; not a license date)

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

  • Hospitalist Physician primary
    UT license 12229890-1205
  • Hospice and Palliative Medicine (Internal Medicine) Physician
    UT license 12229890-1205
  • Internal Medicine Physician
    CA license A129202 (first issued 2014; delinquent)
  • Pediatrics Physician
    CA license A129202 (first issued 2014; delinquent)

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

Map: Hospitalist 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
97
Services billed
229
Patients’ average age
77
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes11050
Hospital discharge day management, more than 30 minutes3737
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes2221
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes1916
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes1313

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 Hospitalist clinicians in Salt Lake City

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 22, 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 1376806745. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.