Aileen Castillo, NP
Family Nurse Practitioner · Los Angeles, CA
Aileen Castillo, NP is a family nurse practitioner with a practice address in Los Angeles, California, and NPI 1265659056, issued on Apr 20, 2007. Check the license (California NP11929, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Aileen Castillo
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP11929 CA
Self-reported in NPPES; status is on the state search - Practice location
- 221 Westwood Plz, Los Angeles, CA 90095
- Phone
- (310) 794-7899
- Enumerated
- Apr 20, 2007
- Entity
- Type 1 · individual
Also registered at 221 Westwood Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Fara Anzures, NPFamily Nurse Practitioner1659498640
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- Ronnie Bergen, MDNeurology Physician1750353488
- Miguel Bonoan, MSN, RN, PMHNP-BCCollege Health Registered Nurse1598510596
- Charlie ChampionClinical Psychologist1679128003
Verify Aileen Castillo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP11929Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
76% fewer Medicare Part D claims than the average family nurse practitioner in 2024
318 Medicare Part D claims for 124 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Triamcinolone Acetonide72 claims
- Ketoconazole28 claims
- Imiquimod20 claims
- Prednisone19 claims
- Otezla18 claims
- Doxycycline Monohydrate17 claims
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: $832.96
28 payments, mostly food and beverage; the largest payer was Dermavant Sciences, Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Howard L Sofen MD A Medical CorporationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
1,103 family nurse practitioner records list a practice address in Los Angeles
They are 1,103 of the 69,537 NPPES records with a practice address in Los Angeles, and 16,966 family nurse practitioner records in California.
All 1,103 in Los Angeles → All 16,966 in California → Every provider in Los Angeles →
Other family nurse practitioner records in California
- Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
- Joshua AaronMission Hills, CA1477291805
- Orly Aaron, NPSan Francisco, CA1376912451
- Paris Gilbert Russ AaronSacramento, CA1871079111
- Tiffanne Aaronsen, FNPIndio, CA1568191807
- Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
- Frances Abad, FNPLos Angeles, CA1053504514
- Nnenna AbaezeLong Beach, CA1457820763
- Raymond Abagat, FNPTorrance, CA1306685821
- Ashley AbalCastaic, CA1740140698
Common questions
What is Aileen Castillo, NP's NPI number?
Aileen Castillo, NP's National Provider Identifier (NPI) is 1265659056, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Aileen Castillo, NP located?
The NPPES record lists a practice address at 221 Westwood Plz, Los Angeles, CA, 90095. Phone: (310) 794-7899. Providers update this record themselves, so call before visiting.
How can I verify Aileen Castillo, NP's license?
NPPES lists California license number NP11929, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Aileen Castillo, NP prescribe under Medicare Part D?
In 2024, Aileen Castillo, NP had 318 Medicare Part D claims for 124 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.