NPPES file of Aug 9, 2026

Samuel John Kozloff, M.D.

Hospitalist Physician · Bountiful, UT

Samuel John Kozloff, M.D. is a hospitalist physician with a practice address in Bountiful, Utah, and NPI 1821521337, issued on Apr 11, 2017. Check the license (Utah 11942247-1205, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821521337
Name
Samuel John Kozloff
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
11942247-1205 UT
Self-reported in NPPES; status is on the state search
Practice location
630 Medical Dr, Bountiful, UT 84010
Phone
(775) 204-1400
Enumerated
Apr 11, 2017
Record last updated
Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 630 Medical Dr

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

  1. Blake Brown, MDAnesthesiology Physician1427060912
  2. Joe Culbertson, M.D.Psychiatry Physician1548286792
  3. Hu Ding, MDAnatomic Pathology & Clinical Pathology Physician1710923552
  4. Alex Drake, MDEmergency Medicine Physician1952720633
  5. Anthony Faber, MDAnesthesiology Physician1083626303
  6. Jonathan Fox, NPPsychiatric/Mental Health Nurse Practitioner1508583709

Verify Samuel John Kozloff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersUtah Medical Licensing Board
    Search for license 11942247-1205
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average hospitalist physician in 2024

113 Medicare Part D claims for 39 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Samuel Kozloff113
  2. Specialty average521

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 92.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Samuel John Kozloff among 285 hospitalist physician records in Utah

Samuel John Kozloff, 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 2017, is newer than 66% of them.

  • NPI issued2017 · 66% of these records are older, 31% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileNo · 79% of these records are
  • Record last updated2021 · 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. Bryan Bartholomew, DOBountiful, UT 840101407956121
  2. Marlan Hansen, MDAmerican Fork, UT 840031184634511
  3. J Kesler, DOAmerican Fork, UT 840031225189020
  4. Brian Larson, M.D.American Fork, UT 840031174987374
  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 Samuel John Kozloff, M.D.'s NPI number?

Samuel John Kozloff, M.D.'s National Provider Identifier (NPI) is 1821521337, issued on Apr 11, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Samuel John Kozloff, M.D. located?

The NPPES record lists a practice address at 630 Medical Dr, Bountiful, UT, 84010. Phone: (775) 204-1400. Providers update this record themselves, so call before visiting.

How can I verify Samuel John Kozloff, M.D.'s license?

NPPES lists Utah license number 11942247-1205, 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 Samuel John Kozloff, M.D. prescribe under Medicare Part D?

In 2024, Samuel John Kozloff, M.D. had 113 Medicare Part D claims for 39 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Samuel John Kozloff, M.D.'s MIPS final score?

The 2023 MIPS final score is 92.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.