William J. Castillo, M.D.
Pediatric Cardiology Physician · Las Vegas, NV
William J. Castillo, M.D. is a pediatric cardiology physician with a practice address in Las Vegas, Nevada, and NPI 1093895286, issued on Oct 16, 2006. Check the license (Nevada 12420, as entered in NPPES) on the Nevada State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William J. Castillo
- Credential
- M.D.
- Primary taxonomy
- Pediatric Cardiology Physician 2080P0202X
- License numbers
- 12420 NV
20947 WV
Self-reported in NPPES; status is on the state search - Practice location
- 3131 LA Canada St Ste 230, Las Vegas, NV 89169
- Phone
- (702) 732-1290
- Enumerated
- Oct 16, 2006
- Record last updated
- Mar 8, 2022
- Fax
- (702) 732-1385
- Medicaid IDs
- 1093895286 NV
2003496000 WV - Medicare enrollment
- Enrolled (PECOS I20071211000458); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest pediatric cardiology physician records → All 20 in Nevada → Look up another NPI →
Also registered at 3131 LA Canada St Ste 230
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruben Acherman, MDPediatric Cardiology Physician1033192372
- John Alexander, D.O.Pediatric Cardiology Physician1467688036
- William Evans, MDPediatric Cardiology Physician1659354454
- Alvaro Galindo, MDPediatric Cardiology Physician1639186802
- Melissa Jasinto, MDPediatric Cardiology Physician1134654932
- Tina Kwan, MDPediatric Cardiology Physician1790099810
Verify William J. Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNevada State Board of Medical Examiners
Search for license 12420Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- William Neal Evans MD LtdLas Vegas, NV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William J. Castillo among 20 pediatric cardiology physician records in Nevada
William J. Castillo, M.D. is one of 20 pediatric cardiology physician records with a practice address in Nevada. 80% 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 40% of them.
- NPI issued2006 · 40% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1987 · median 1987 among the 16 with a school on file
- Record last updated2022 · 15% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0202X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Cardiology Physician providers in Nevada
There are 20 pediatric cardiology physician records in Nevada.
All 20 in Nevada → Every provider in Las Vegas → Pediatric Cardiology Physician nationwide →
The 8 pediatric cardiology physician records with the nearest ZIP codes
- Ruben Acherman, MDLas Vegas, NV 891691033192372
- John Alexander, D.O.Las Vegas, NV 891691467688036
- William Evans, MDLas Vegas, NV 891691659354454
- Alvaro Galindo, MDLas Vegas, NV 891691639186802
- Melissa Jasinto, MDLas Vegas, NV 891691134654932
- Tina Kwan, MDLas Vegas, NV 891691790099810
- Carlos Luna, MDLas Vegas, NV 891691932182276
- Gary Mayman, MDLas Vegas, NV 891691700869120
Common questions
What is William J. Castillo, M.D.'s NPI number?
William J. Castillo, M.D.'s National Provider Identifier (NPI) is 1093895286, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William J. Castillo, M.D. located?
The NPPES record lists a practice address at 3131 LA Canada St Ste 230, Las Vegas, NV, 89169. Phone: (702) 732-1290. Providers update this record themselves, so call before visiting.
How can I verify William J. Castillo, M.D.'s license?
NPPES lists Nevada license number 12420, 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.