Marin Nishimura, - Medicare Cardiovascular Disease (cardiology) in El Cajon, CA

Marin Nishimura, is a medicare enrolled "Internal Medicine" physician in El Cajon, California. She went to University Of California, Davis School Of Medicine and graduated in 2015 and has 9 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). She is a member of the group practice San Diego Cardiac Center Medical Group Inc., Emergency And Acute Care Medical Corporation and her current practice location is 300 S Pierce St Ste 201, El Cajon, California. You can reach out to her office (for appointments etc.) via phone at (619) 668-4700.

Marin Nishimura is licensed to practice in California (license number 396824) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1003243262.

Contact Information

Marin Nishimura,
300 S Pierce St Ste 201,
El Cajon, CA 92020-4124
(619) 668-4700
Not Available

Map and Direction




Physician's Profile

Full NameMarin Nishimura
GenderFemale
SpecialityCardiovascular Disease (cardiology)
Experience9 Years
Location300 S Pierce St Ste 201, El Cajon, California
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marin Nishimura attended and graduated from University Of California, Davis School Of Medicine in 2015
  NPI Data:
  • NPI Number: 1003243262
  • Provider Enumeration Date: 10/02/2013
  • Last Update Date: 07/08/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0941619373
  • Enrollment ID: I20210514000577

Medical Identifiers

Medical identifiers for Marin Nishimura such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003243262NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 396824 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Grossmont HospitalLa mesa, CAHospital
Sharp Memorial HospitalSan diego, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
San Diego Cardiac Center Medical Group Inc.862804598620
Emergency And Acute Care Medical Corporation9537108279394

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. Marin Nishimura allows following entities to bill medicare on her behalf.
Entity NameZavaro Cardiovascular Institute, Amc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780716415
PECOS PAC ID: 3274519152
Enrollment ID: O20040629001721
Entity NameSan Diego Cardiac Center Medical Group Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801980446
PECOS PAC ID: 8628045986
Enrollment ID: O20040917000439
Entity NameEmergency And Acute Care Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437103942
PECOS PAC ID: 9537108279
Enrollment ID: O20050502000734

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. Marin Nishimura 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
Marin Nishimura,
300 S Pierce St Ste 201,
El Cajon, CA 92020-4124

Ph: (619) 668-4700
Marin Nishimura,
300 S Pierce St Ste 201,
El Cajon, CA 92020-4124

Ph: (619) 668-4700

Reviews and Comments


Internal Medicine Doctors in El Cajon, CA

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Phone: 619-440-4591    
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Genaro Fernandez, MD
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Phone: 619-867-0557    Fax: 619-867-0558
Dr. David Frederick Polster, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: Volunteers In Medicine San Diego, 1457 W Madison Ave, El Cajon, CA 92019
Phone: 619-440-4591    Fax: 619-440-4944
Prachi Avinash Karnik, M.D.
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Medicare: Accepting Medicare Assignments
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Phone: 858-499-2600    Fax: 619-441-6349
Dimitri Atanasov Sherev, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1380 El Cajon Blvd Ste 100, El Cajon, CA 92020
Phone: 619-867-0557    Fax: 619-867-0558

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.