Mariko Ishimori, MD - Medicare Rheumatology in Los Angeles, CA

Mariko Ishimori, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Los Angeles, California. She went to New York Medical College and graduated in 2000 and has 24 years of diverse experience with area of expertise as Rheumatology. She is a member of the group practice Cedars-sinai Medical Center Pharmacy 3, Venice Family Clinic and her current practice location is 8700 Beverly Blvd., Los Angeles, California. You can reach out to her office (for appointments etc.) via phone at (310) 423-2170.

Mariko Ishimori is licensed to practice in California (license number A79050) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1487606695.

Contact Information

Mariko Ishimori, MD
8700 Beverly Blvd.,
Los Angeles, CA 90048-1865
(310) 423-2170
(310) 423-6898

Map and Direction




Physician's Profile

Full NameMariko Ishimori
GenderFemale
SpecialityRheumatology
Experience24 Years
Location8700 Beverly Blvd., Los Angeles, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Mariko Ishimori attended and graduated from New York Medical College in 2000
  NPI Data:
  • NPI Number: 1487606695
  • Provider Enumeration Date: 05/16/2006
  • Last Update Date: 08/06/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 3577566868
  • Enrollment ID: I20060804000174

Medical Identifiers

Medical identifiers for Mariko Ishimori such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487606695NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology A79050 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cedars-sinai Medical CenterLos angeles, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cedars-sinai Medical Center Pharmacy 30446169114648
Venice Family Clinic226433912647

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. Mariko Ishimori allows following entities to bill medicare on her behalf.
Entity NameCedars-sinai Medical Center Pharmacy #3
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639172372
PECOS PAC ID: 0446169114
Enrollment ID: O20040204000886

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. Mariko Ishimori 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
Mariko Ishimori, MD
Po Box 512717,
Los Angeles, CA 90051-0717

Ph: (310) 423-2170
Mariko Ishimori, MD
8700 Beverly Blvd.,
Los Angeles, CA 90048-1865

Ph: (310) 423-2170

Reviews and Comments


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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).

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.