Oliver Lee Mason, MD - Medicare Internal Medicine in Cerritos, CA

Oliver Lee Mason, MD is a medicare enrolled "Internal Medicine" physician in Cerritos, California. He went to University Of California, San Francisco School Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 10802 College Pl, Cerritos, California. You can reach out to his office (for appointments etc.) via phone at (562) 982-0010.

Oliver Lee Mason is licensed to practice in California (license number G56462) 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 1871606434.

Contact Information

Oliver Lee Mason, MD
10802 College Pl,
Cerritos, CA 90703-1505
(562) 982-0010
(562) 982-0012

Map and Direction




Physician's Profile

Full NameOliver Lee Mason
GenderMale
SpecialityInternal Medicine
Experience40 Years
Location10802 College Pl, Cerritos, 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:
  • Oliver Lee Mason attended and graduated from University Of California, San Francisco School Of Medicine in 1984
  NPI Data:
  • NPI Number: 1871606434
  • Provider Enumeration Date: 08/17/2006
  • Last Update Date: 02/04/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 3476677048
  • Enrollment ID: I20100902001140

Medical Identifiers

Medical identifiers for Oliver Lee Mason such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871606434NPI-NPPES
OOG564620MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G56462 (California)Primary

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. Oliver Lee 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
Oliver Lee Mason, MD
10650 Reagan St, 610,
Los Alamitos, CA 90720-8800

Ph: (562) 982-0010
Oliver Lee Mason, MD
10802 College Pl,
Cerritos, CA 90703-1505

Ph: (562) 982-0010

Reviews and Comments


Internal Medicine Doctors in Cerritos, CA

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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).

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