NPPES file of Aug 9, 2026

Brian J. Larson, M.D.

Hospitalist Physician · American Fork, UT

Brian J. Larson, M.D. is a hospitalist physician with a practice address in American Fork, Utah, and NPI 1174987374, issued on Apr 13, 2016. Check the license (Utah 10490240-1205, as entered in NPPES) on the Utah Medical Licensing Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1174987374
Name
Brian J. Larson
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
10490240-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
170 N 1100 E, American Fork, UT 84003
Phone
(801) 357-8310
Enumerated
Apr 13, 2016
Record last updated
Sep 5, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191106001117); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 170 N 1100 E

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Carl Ahroon, M.DInternal Medicine Physician1417185372
  2. Brandon Barney, M.D.Radiation Oncology Physician1194961789
  3. Amanda Beers, PTPhysical Therapist1992378996
  4. Brandy Bennett, P.T.Physical Therapist1396867438
  5. Preston Bird, CRNACertified Registered Nurse Anesthetist1184058570
  6. Michael Blaney, CRNACertified Registered Nurse Anesthetist1225302938

Verify Brian J. Larson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 10490240-1205
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Utah license search

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57% fewer Medicare Part D claims than the average hospitalist physician in 2024

223 Medicare Part D claims for 101 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Brian Larson223
  2. Specialty average521

Most prescribed

  1. Furosemide19 claims
  2. Eliquis17 claims
  3. Pantoprazole Sodium17 claims
  4. Clopidogrel14 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Ihc Health Services IncAmerican Fork, UT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Brian J. Larson among 285 hospitalist physician records in Utah

Brian J. Larson, M.D. is one of 285 hospitalist physician records with a practice address in Utah. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 63% of them.

  • NPI issued2016 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2016 · median 2012 among the 225 with a school on file
  • Record last updated2019 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Utah practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in Utah

There are 285 hospitalist physician records in Utah.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Marlan Hansen, MDAmerican Fork, UT 840031184634511
  2. J Kesler, DOAmerican Fork, UT 840031225189020
  3. Bryan Bartholomew, DOBountiful, UT 840101407956121
  4. Samuel Kozloff, M.D.Bountiful, UT 840101821521337
  5. Manpreet KaurDraper, UT 840201982023909
  6. Dominika Janowski, MDLayton, UT 840411922230770
  7. Mairi Leining, MDPark City, UT 840601629066469
  8. Aileen Arguelles Del Castillo, MDRiverton, UT 840651205068749

Common questions

What is Brian J. Larson, M.D.'s NPI number?

Brian J. Larson, M.D.'s National Provider Identifier (NPI) is 1174987374, issued on Apr 13, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Brian J. Larson, M.D. located?

The NPPES record lists a practice address at 170 N 1100 E, American Fork, UT, 84003. Phone: (801) 357-8310. Providers update this record themselves, so call before visiting.

How can I verify Brian J. Larson, M.D.'s license?

NPPES lists Utah license number 10490240-1205, as entered by the provider. Search the Utah Medical Licensing Board at https://secure.utah.gov/llv/search/index.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Brian J. Larson, M.D. prescribe under Medicare Part D?

In 2024, Brian J. Larson, M.D. had 223 Medicare Part D claims for 101 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.