Dr William King Iii, MD - Medicare Diagnostic Radiology in Oxnard, CA

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Dr William King Iii, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Oxnard, California. He went to University Of California, Geffen School Of Medicine and graduated in 1974 and has 50 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice I. Grossman M.d., Inc. and his current practice location is 2001 Solar Dr, Suite 135, Oxnard, California. You can reach out to his office (for appointments etc.) via phone at (805) 988-0616.

Dr William King Iii is licensed to practice in California (license number G30791) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1417182429.

Contact Information

Dr William King Iii, MD
2001 Solar Dr, Suite 135,
Oxnard, CA 93036-2645
(805) 988-0616
(805) 604-1722

Map and Direction




Physician's Profile

Full NameDr William King Iii
GenderMale
SpecialityDiagnostic Radiology
Experience50 Years
Location2001 Solar Dr, Oxnard, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William King Iii attended and graduated from University Of California, Geffen School Of Medicine in 1974
  NPI Data:
  • NPI Number: 1417182429
  • Provider Enumeration Date: 05/19/2009
  • Last Update Date: 05/21/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 4880588953
  • Enrollment ID: I20040210000616

Medical Identifiers

Medical identifiers for Dr William King Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417182429NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology G30791 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
I. Grossman M.d., Inc.711300188419

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. Dr William King Iii allows following entities to bill medicare on his behalf.
Entity NameI. Grossman M.d., Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366463572
PECOS PAC ID: 7113001884
Enrollment ID: O20080220000325

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. Dr William King Iii 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
Dr William King Iii, MD
Po Box 6305,
Oxnard, CA 93031-6305

Ph: (805) 988-0616		Dr William King Iii, MD
2001 Solar Dr, Suite 135,
Oxnard, CA 93036-2645

Ph: (805) 988-0616

Reviews and Comments


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Mark R Mitchell, M.D.
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Practice Location: 2001 N. Solar Dr., Suite 135, Oxnard, CA 93036
Phone: 805-988-0616    

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.