Hiroshi Yamagata, MD - Medicare Internal Medicine in Cerritos, CA

Hiroshi Yamagata, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Cerritos, California. His current practice location is 18000 Studebaker Rd Ste 800, Cerritos, California. You can reach out to his office (for appointments etc.) via phone at (562) 735-3226.

Hiroshi Yamagata is licensed to practice in California (license number A185183) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1871948950.

Contact Information

Hiroshi Yamagata, MD
18000 Studebaker Rd Ste 800,
Cerritos, CA 90703-2671
(562) 735-3226
Not Available

Map and Direction




Physician's Profile

Full NameHiroshi Yamagata
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location18000 Studebaker Rd Ste 800, Cerritos, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1871948950
  • Provider Enumeration Date: 04/26/2016
  • Last Update Date: 08/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0446543557
  • Enrollment ID: I20230621003544

Medical Identifiers

Medical identifiers for Hiroshi Yamagata such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871948950NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology A185183 (California)Primary

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. Hiroshi Yamagata allows following entities to bill medicare on his behalf.
Entity NameThe Oncology Institute Ca, A Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275651515
PECOS PAC ID: 5698872398
Enrollment ID: O20070514000607

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. Hiroshi Yamagata 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
Hiroshi Yamagata, MD
18000 Studebaker Rd Ste 800,
Cerritos, CA 90703-2671

Ph: (562) 735-3226
Hiroshi Yamagata, MD
18000 Studebaker Rd Ste 800,
Cerritos, CA 90703-2671

Ph: (562) 735-3226

Reviews and Comments


Internal Medicine Doctors in Cerritos, CA

Dr. Ardavan Mehdizadeh, M.D.
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Dipti Doshi, MD
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Dr. Ali Baghian, M.D
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Medicare: Accepting Medicare Assignments
Practice Location: 18000 Studebaker Rd Ste 800, Cerritos, CA 90703
Phone: 562-735-3226    Fax: 562-869-1281
Dr. Arlene Ledesma Yu, MD, MBA
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 18000 Studebaker Rd Ste 800, Cerritos, CA 90703
Phone: 562-735-3226    
Senthilraj Nadarajah, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 12855 Moorshire Dr, Cerritos, CA 90703
Phone: 253-232-7810    

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.

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