William Scott Ruiz, MD - Medicare Family Medicine in Hawthorne, CA

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William Scott Ruiz, MD is a medicare enrolled "Family Medicine" physician in Hawthorne, California. His current practice location is 5400 W Rosecrans Ave, Suite 100, Hawthorne, California. You can reach out to his office (for appointments etc.) via phone at (310) 727-1722.

William Scott Ruiz is licensed to practice in California (license number G47785) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1811912504.

Contact Information

William Scott Ruiz, MD
5400 W Rosecrans Ave, Suite 100,
Hawthorne, CA 90250-6609
(310) 727-1722
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Scott Ruiz
GenderMale
SpecialityFamily Medicine
Location5400 W Rosecrans Ave, Hawthorne, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1811912504
  • Provider Enumeration Date: 07/13/2006
  • Last Update Date: 11/05/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 4183669849
  • Enrollment ID: I20050622001358

Medical Identifiers

Medical identifiers for William Scott Ruiz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811912504NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine G47785 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. William Scott Ruiz allows following entities to bill medicare on his behalf.
Entity NameHealthcare Partners Affiliates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659312593
PECOS PAC ID: 7315842002
Enrollment ID: O20031204001258
Entity NamePalos Verdes Family & Immediate Medical Care Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134103930
PECOS PAC ID: 3870656473
Enrollment ID: O20090108000100

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. William Scott Ruiz 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
William Scott Ruiz, MD
5400 W Rosecrans Ave, Suite 100,
Hawthorne, CA 90250-6609

Ph: (310) 727-1722		William Scott Ruiz, MD
5400 W Rosecrans Ave, Suite 100,
Hawthorne, CA 90250-6609

Ph: (310) 727-1722

Reviews and Comments


Family Medicine Doctors in Hawthorne, CA

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Jennifer R. Chan, M.D.
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Janet Fahem Soliman, M.D.
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Phone: 310-675-1136    Fax: 310-970-1447
Terry Ishihara, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 5400 W Rosecrans Ave, Ste 100, Hawthorne, CA 90250
Phone: 310-643-8500    Fax: 310-297-7863

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.