Dr David James Koster, MD - Medicare Hematology/oncology in Fresno, CA

Dr David James Koster, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Fresno, California. He graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice Providence Medical Foundation and his current practice location is 7130 N Millbrook Ave, Suite 100, Fresno, California. You can reach out to his office (for appointments etc.) via phone at (559) 326-1238.

Dr David James Koster is licensed to practice in California (license number G64875) 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 1063406163.

Contact Information

Dr David James Koster, MD
7130 N Millbrook Ave, Suite 100,
Fresno, CA 93720-3347
(559) 326-1238
(559) 326-1230

Map and Direction




Physician's Profile

Full NameDr David James Koster
GenderMale
SpecialityHematology/oncology
Experience37 Years
Location7130 N Millbrook Ave, Fresno, 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:
  • Dr David James Koster graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1063406163
  • Provider Enumeration Date: 09/02/2005
  • Last Update Date: 11/05/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1951328988
  • Enrollment ID: I20080528000510

Medical Identifiers

Medical identifiers for Dr David James Koster such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063406163NPI-NPPES
ZZZ75882ZMedicaidCA
PO1345510OtherCARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology G64875 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalEureka, CAHospital
Redwood Memorial HospitalFortuna, CAHospital
Jerold Phelps Community HospitalGarberville, CAHospital
Mad River Community HospitalArcata, CAHospital
Sutter Coast HospitalCrescent city, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Medical Foundation89219932051293

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. Dr David James Koster allows following entities to bill medicare on his behalf.
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346

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. Dr David James Koster 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
Dr David James Koster, MD
7130 N Millbrook Ave, Suite 100,
Fresno, CA 93720-3347

Ph: (559) 447-4949
Dr David James Koster, MD
7130 N Millbrook Ave, Suite 100,
Fresno, CA 93720-3347

Ph: (559) 326-1238

Reviews and Comments


Internal Medicine Doctors in Fresno, CA

Maulik Shah, MD
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Practice Location: 7300 N Fresno St, Fresno, CA 93720
Phone: 559-448-4555    
Rami Alrezk, MD
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Practice Location: 155 N Fresno St, Fresno, CA 93701
Phone: 559-499-6479    
Dr. John R Nelson, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 7061 N Whitney, Suite 101, Fresno, CA 93720
Phone: 559-299-0224    Fax: 559-299-4201
Dexter T Estrada, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 7130 N Millbrook Ave Ste 100, Fresno, CA 93720
Phone: 559-326-1222    Fax: 559-326-1230
Dr. Sherry Lopez, D.O.
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 3209 W Shaw Ave, Suite 114, Fresno, CA 93711
Phone: 559-224-4977    Fax: 559-224-4980
Maria Flordeliz Arambulo, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 2823 Fresno St, Fresno, CA 93721
Phone: 559-499-6484    Fax: 559-499-6501
Shreela Mishra,
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 7085 N Chestnut Ave Ste 101, Fresno, CA 93720
Phone: 559-323-9236    Fax: 559-323-0294

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.