James Michael Mason, MD - Medicare Radiation Oncology in Wildomar, CA

James Michael Mason, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Wildomar, California. He went to Wayne State University School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice City Of Hope Medical Foundation and his current practice location is 36450 Inland Valley Dr, Wildomar, California. You can reach out to his office (for appointments etc.) via phone at (951) 696-0679.

James Michael Mason is licensed to practice in California (license number G85713) 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 1902955818.

Contact Information

James Michael Mason, MD
36450 Inland Valley Dr,
Wildomar, CA 92595-9583
(951) 696-0679
(951) 696-9748

Map and Direction




Physician's Profile

Full NameJames Michael Mason
GenderMale
SpecialityRadiation Oncology
Experience36 Years
Location36450 Inland Valley Dr, Wildomar, 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:
  • James Michael Mason attended and graduated from Wayne State University School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1902955818
  • Provider Enumeration Date: 01/09/2007
  • Last Update Date: 11/13/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 8921009960
  • Enrollment ID: I20070810000801

Medical Identifiers

Medical identifiers for James Michael Mason such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902955818NPI-NPPES
0961188MedicaidOH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0001XRadiology - Radiation Oncology G85713 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
City Of Hope Medical Foundation3779751656686

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. James Michael Mason allows following entities to bill medicare on his behalf.
Entity NameWalter K Nahm Md Phd Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1720110968
PECOS PAC ID: 8527968452
Enrollment ID: O20040108001153
Entity NameCity Of Hope Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871886366
PECOS PAC ID: 3779751656
Enrollment ID: O20110720000244

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. James Michael Mason 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
James Michael Mason, MD
Po Box 512185,
Los Angeles, CA 90051-0185

Ph: () -
James Michael Mason, MD
36450 Inland Valley Dr,
Wildomar, CA 92595-9583

Ph: (951) 696-0679

Reviews and Comments


Radiology Doctors in Wildomar, CA

David Eric Scafidi, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36320 Inland Valley Dr, Ste 101, Wildomar, CA 92595
Phone: 951-600-3811    
David R. Lawson, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36320 Inland Valley Dr, Ste 101, Wildomar, CA 92595
Phone: 951-600-3811    Fax: 951-600-4493
Dr. Kenneth S Chon, M.D.
Radiology
Medicare: Not Enrolled in Medicare
Practice Location: 36320 Inland Valley Dr, Ste 101, Wildomar, CA 92595
Phone: 951-600-3811    Fax: 951-600-4493
James Christopher Stapakis, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36320 Inland Valley Dr, Ste 101, Wildomar, CA 92595
Phone: 951-600-3811    
Christopher C Toensing, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36485 Inland Valley Dr, Wildomar, CA 92595
Phone: 951-677-1111    
Dr. John C Kim, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36320 Inland Valley Dr, Ste 101, Wildomar, CA 92595
Phone: 951-600-3811    Fax: 951-600-4493
Jason Sun, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 36320 Inland Valley Dr Ste 105, Wildomar, CA 92595
Phone: 951-468-8588    Fax: 760-503-5914

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.