William Kenneth Halliday, MD - Medicare Internal Medicine in Montebello, CA

William Kenneth Halliday, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Montebello, California. His current practice location is 2444 W Beverly Blvd, Montebello, California. You can reach out to his office (for appointments etc.) via phone at (323) 201-4130.

William Kenneth Halliday is licensed to practice in California (license number A23526) 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 1013021708.

Contact Information

William Kenneth Halliday, MD
2444 W Beverly Blvd,
Montebello, CA 90640-2306
(323) 201-4130
(323) 201-4134

Map and Direction




Physician's Profile

Full NameWilliam Kenneth Halliday
GenderMale
SpecialityInternal Medicine - Cardiovascular Disease
Location2444 W Beverly Blvd, Montebello, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013021708
  • Provider Enumeration Date: 08/18/2006
  • Last Update Date: 08/29/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 4587675368
  • Enrollment ID: I20060508000705

Medical Identifiers

Medical identifiers for William Kenneth Halliday such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013021708NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease A23526 (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 Kenneth Halliday allows following entities to bill medicare on his behalf.
Entity NameCaremore Health Plan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386048429
PECOS PAC ID: 6406170067
Enrollment ID: O20190221000529
Entity NameCaremore Health Medical Partners West, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073110607
PECOS PAC ID: 8921419813
Enrollment ID: O20201125000882

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 Kenneth Halliday 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 Kenneth Halliday, MD
12900 Park Plaza Dr Ste 150,
Cerritos, CA 90703-9329

Ph: (562) 977-4674
William Kenneth Halliday, MD
2444 W Beverly Blvd,
Montebello, CA 90640-2306

Ph: (323) 201-4130

Reviews and Comments


Internal Medicine Doctors in Montebello, CA

Pradip C.p. Chowdhury, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3114 W Beverly Blvd, Montebello, CA 90640
Phone: 323-726-1317    Fax: 323-726-3870
Dr. Rahul Dhawan, D.O.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3420 W Beverly Blvd, Montebello, CA 90640
Phone: 213-359-6393    
Dr. Oana Maria Penciu, MD PHD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 101 E Beverly Blvd Ste 405, Montebello, CA 90640
Phone: 323-594-8667    Fax: 310-933-1409
Maybel Min Tan, M.D
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3114 W Beverly Blvd, Montebello, CA 90640
Phone: 323-726-3868    
John Manuel Hernandez, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 526 N Montebello Blvd, Montebello, CA 90640
Phone: 323-726-1109    Fax: 323-278-1162
Akbar Attary, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 2011 W Whittier Blvd, Montebello, CA 90640
Phone: 323-767-5141    Fax: 323-767-5142

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.