NPPES file of Aug 9, 2026

William L. Downey, M.D.

Pediatrics Physician · Las Vegas, NV

William L. Downey, M.D. is a pediatrics physician with a practice address in Las Vegas, Nevada, and NPI 1477533867, issued on Jan 20, 2006. Check the license (Nevada 5189, 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
1477533867
Name
William L. Downey
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
5189 NV
MD00042163 WA
Self-reported in NPPES; status is on the state search
Practice location
10105 Banburry Cross Dr, Las Vegas, NV 89144
Phone
(702) 260-4525
Enumerated
Jan 20, 2006
Record last updated
Sep 27, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(702) 869-0133
Medicaid ID
002002690 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 10105 Banburry Cross Dr

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

  1. Chely Arias, ATCAthletic Trainer1598294308
  2. David Blank, M.D.Pediatrics Physician1013996974
  3. Jacki Deguzman, M.D.Internal Medicine Physician1013206614
  4. Princess Emilily El, PA-CPhysician Assistant1790011922
  5. Lionel Handler, MDDermatology Physician1013988260
  6. Paul Heeren, MDCardiovascular Disease Physician1417904350

Verify William L. Downey 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 5189
    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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Industry payments in 2024: $211.90

10 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. William Downey$211.90
  2. Specialty average$842.05

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

William L. Downey among 380 pediatrics physician records in Nevada

William L. Downey, M.D. is one of 380 pediatrics physician records with a practice address in Nevada. 50% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 54% newer
  • In a Medicare fileYes · 50% of these records are
  • In the CMS Doctors and Clinicians fileNo · 6% of these records are
  • Record last updated2013 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Nevada

There are 380 pediatrics physician records in Nevada.

The 8 pediatrics physician records with the nearest ZIP codes

  1. David Blank, M.D.Las Vegas, NV 891441013996974
  2. Kathleen Burford, M.D.Las Vegas, NV 891441912963521
  3. Pamela Greenspon, M.D.Las Vegas, NV 891441245290774
  4. Robert Jerome, M.D.Las Vegas, NV 891441437291069
  5. John Lepore, D.O.Las Vegas, NV 891441417981986
  6. Terence McAllister, M.D.Las Vegas, NV 891441699765966
  7. Susan Miko, DOLas Vegas, NV 891441982667697
  8. Xiaokun Montez, M.D, PHDLas Vegas, NV 891441801867668

Common questions

What is William L. Downey, M.D.'s NPI number?

William L. Downey, M.D.'s National Provider Identifier (NPI) is 1477533867, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William L. Downey, M.D. located?

The NPPES record lists a practice address at 10105 Banburry Cross Dr, Las Vegas, NV, 89144. Phone: (702) 260-4525. Providers update this record themselves, so call before visiting.

How can I verify William L. Downey, M.D.'s license?

NPPES lists Nevada license number 5189, 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.

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.