Haley F Castiglione, NP - Medicare Internal Medicine in Los Angeles, CA

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Haley F Castiglione, NP is a medicare enrolled "Internal Medicine - Hematology & Oncology" in Los Angeles, California. Her current practice location is 757 Westwood Plz, Los Angeles, California. You can reach out to her office (for appointments etc.) via phone at (310) 825-6301.

Haley F Castiglione is licensed to practice in California (license number 18656) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1528148921.

Contact Information

Haley F Castiglione, NP
757 Westwood Plz,
Los Angeles, CA 90095-8358
(310) 825-6301
(310) 825-7473

Map and Direction




Provider's Profile

Full NameHaley F Castiglione
GenderFemale
SpecialityInternal Medicine - Hematology & Oncology
Location757 Westwood Plz, Los Angeles, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1528148921
  • Provider Enumeration Date: 10/17/2006
  • Last Update Date: 10/01/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 4789786732
  • Enrollment ID: I20170202002568

Medical Identifiers

Medical identifiers for Haley F Castiglione such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528148921NPI-NPPES
1528148921MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LA2100XNurse Practitioner - Acute Care 18656 (California)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 18656 (California)Primary
363L00000XNurse Practitioner 18656 (California)Secondary

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Haley F Castiglione is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Haley F Castiglione, NP
5767 W Century Blvd Ste 400,
Los Angeles, CA 90045-5631

Ph: () -		Haley F Castiglione, NP
757 Westwood Plz,
Los Angeles, CA 90095-8358

Ph: (310) 825-6301

Reviews and Comments



Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.