Dr Ivy-joan Erinma Madu, MD - Medicare Internal Medicine in Orange, CA

Dr Ivy-joan Erinma Madu, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Orange, California. She graduated from medical school in 1981 and has 43 years of diverse experience with area of expertise as Internal Medicine. Her current practice location is 1310 W Stewart Dr Ste 610, Orange, California. You can reach out to her office (for appointments etc.) via phone at (714) 639-1815.

Dr Ivy-joan Erinma Madu is licensed to practice in California (license number A50150) 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 1710988662.

Contact Information

Dr Ivy-joan Erinma Madu, MD
1310 W Stewart Dr Ste 610,
Orange, CA 92868-3857
(714) 639-1815
(714) 639-2374

Map and Direction




Physician's Profile

Full NameDr Ivy-joan Erinma Madu
GenderFemale
SpecialityInternal Medicine
Experience43 Years
Location1310 W Stewart Dr Ste 610, Orange, 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:
  • Dr Ivy-joan Erinma Madu graduated from medical school in 1981
  NPI Data:
  • NPI Number: 1710988662
  • Provider Enumeration Date: 08/02/2005
  • Last Update Date: 04/16/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 0547440992
  • Enrollment ID: I20110202000551

Medical Identifiers

Medical identifiers for Dr Ivy-joan Erinma Madu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710988662NPI-NPPES
00A501500MedicaidCA
00A501500OtherCACALOPTIMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism A50150 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Joseph HospitalOrange, CAHospital

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 Ivy-joan Erinma Madu allows following entities to bill medicare on her behalf.
Entity NameDiabetes Associates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407164460
PECOS PAC ID: 4486834835
Enrollment ID: O20110202000515

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 Ivy-joan Erinma Madu 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 Ivy-joan Erinma Madu, MD
Po Box 1693,
Orange, CA 92856-0693

Ph: (714) 639-1815
Dr Ivy-joan Erinma Madu, MD
1310 W Stewart Dr Ste 610,
Orange, CA 92868-3857

Ph: (714) 639-1815

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).

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