NPPES file of Aug 9, 2026

Mark Barnett Johnson, MD

Vascular & Interventional Radiology Physician · Las Vegas, NV

Mark Barnett Johnson, MD is a vascular & interventional radiology physician with a practice address in Las Vegas, Nevada, and NPI 1740623818, issued on Apr 9, 2013. Check the license (Nevada 18967, as entered in NPPES) on the Nevada State Board of Medical Examiners; 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
1740623818
Name
Mark Barnett Johnson
Credential
MD
Primary taxonomy
Vascular & Interventional Radiology Physician 2085R0204X
License number
18967 NV
Self-reported in NPPES; status is on the state search
Practice location
2020 Palomino LN Ste 100, Las Vegas, NV 89106
Phone
(702) 759-8600
Enumerated
Apr 9, 2013
Record last updated
Sep 25, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210122000518); accepts Medicare assignment
Medical or professional school
University Of Utah School Of Medicine, 2013
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 2020 Palomino LN Ste 100

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

  1. Kareem Ahmed, M.D.Diagnostic Radiology Physician1336593581
  2. Tamra Baldauf, M.D.Diagnostic Radiology Physician1326099268
  3. Nicholas Bell, B.S.Diagnostic Radiology Physician1992096614
  4. Kristin Cavaricci, PA-CPhysician Assistant1144793324
  5. Sean Christiansen, PA-CPhysician Assistant1245792381
  6. Kamel El Salek, M.D.Vascular & Interventional Radiology Physician1457884579

Verify Mark Barnett Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license 18967
    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 Nevada 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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67% fewer Medicare Part D claims than the average vascular & interventional radiology physician in 2024

25 Medicare Part D claims for 13 beneficiaries, against an average of 75 among the 1,444 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Mark Johnson25
  2. Specialty average75

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.

Industry payments in 2024: $945.80

10 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,457 providers of this specialty with any payment received $7,206.73 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Johnson$945.80
  2. Specialty average$7,206.73

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Kalispell Regional Medical Center IncKalispell, MT
  2. Northwest Imaging, PCKalispell, MT

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

Mark Barnett Johnson among 36 vascular & interventional radiology physician records in Nevada

Mark Barnett Johnson, MD is one of 36 vascular & interventional radiology physician records with a practice address in Nevada. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 61% of them.

  • NPI issued2013 · 61% of these records are older, 31% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2013 · median 2012 among the 29 with a school on file
  • Record last updated2020 · 22% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0204X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Vascular & Interventional Radiology Physician providers in Nevada

There are 36 vascular & interventional radiology physician records in Nevada.

The 8 vascular & interventional radiology physician records with the nearest ZIP codes

  1. Kamel El Salek, M.D.Las Vegas, NV 891061457884579
  2. Xi Xue, M.D.Las Vegas, NV 891061700261583
  3. Steven Davis, M.D.Las Vegas, NV 891091366420556
  4. Kelly Gardner, M.D.Las Vegas, NV 891091255319463
  5. Peter Weidenfeld, M.D.Las Vegas, NV 891091407834435
  6. Reginald Baker, M.D.Las Vegas, NV 891021942261631
  7. Brandon Chen, M.D.Las Vegas, NV 891021821433277
  8. Valerie Drnovsek, MDLas Vegas, NV 891021932129525

Common questions

What is Mark Barnett Johnson, MD's NPI number?

Mark Barnett Johnson, MD's National Provider Identifier (NPI) is 1740623818, issued on Apr 9, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Mark Barnett Johnson, MD located?

The NPPES record lists a practice address at 2020 Palomino LN Ste 100, Las Vegas, NV, 89106. Phone: (702) 759-8600. Providers update this record themselves, so call before visiting.

How can I verify Mark Barnett Johnson, MD's license?

NPPES lists Nevada license number 18967, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Barnett Johnson, MD prescribe under Medicare Part D?

In 2024, Mark Barnett Johnson, MD had 25 Medicare Part D claims for 13 beneficiaries; the average among vascular & interventional radiology physician prescribers was 75. 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.