NPPES file of Aug 9, 2026

Jon L. Siems, M.D.

Specialist · Las Vegas, NV

Jon L. Siems, M.D. is a specialist with a practice address in Las Vegas, Nevada, and NPI 1528068640, issued on Jul 29, 2005. Check the license (Nevada 9250, as entered in NPPES) with the Nevada board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1528068640
Name
Jon L. Siems
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
9250 NV
Self-reported in NPPES; status is on the state search
Practice location
3810 E Flamingo RD, Las Vegas, NV 89121
Phone
(702) 948-2010
Enumerated
Jul 29, 2005
Record last updated
May 14, 2024
Fax
(702) 920-8787
Medicaid ID
2018998 NV
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 3810 E Flamingo RD

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

  1. Luis Moreno, MDEmergency Medicine Physician1477519163

Verify Jon L. Siems in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Nevada board licenses this profession
    Search for license 9250
    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
Find the Nevada license search

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Jon L. Siems among 276 specialist records in Nevada

Jon L. Siems, M.D. is one of 276 specialist records with a practice address in Nevada. 26% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileNo · 26% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2024 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Nevada

There are 276 specialist records in Nevada. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 specialist records with the nearest ZIP codes

  1. Eugene Chen, MDLas Vegas, NV 891211811987845
  2. Misnelli Diaz-OsorioLas Vegas, NV 891211417431024
  3. Blayson FagbodunLas Vegas, NV 891211245938307
  4. Katerin Guardado MenjivarLas Vegas, NV 891211285490953
  5. Eric McCrary, LIFE COACHLas Vegas, NV 891211467302950
  6. Alyse EighmyLas Vegas, NV 891221427937283
  7. Nicole ForbesLas Vegas, NV 891221750222691
  8. Haliaka GlowczewskiLas Vegas, NV 891201578985867

Common questions

What is Jon L. Siems, M.D.'s NPI number?

Jon L. Siems, M.D.'s National Provider Identifier (NPI) is 1528068640, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Jon L. Siems, M.D. located?

The NPPES record lists a practice address at 3810 E Flamingo RD, Las Vegas, NV, 89121. Phone: (702) 948-2010. Providers update this record themselves, so call before visiting.

How can I verify Jon L. Siems, M.D.'s license?

NPPES lists Nevada license number 9250, as entered by the provider. Search the Nevada board that licenses this profession; the NPPES record confirms identity 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. 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.