Ivy-Joan Erinma Madu, M.D.
Endocrinology, Diabetes & Metabolism Physician · Orange, CA
Ivy-Joan Erinma Madu, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Orange, California, and NPI 1710988662, issued on Aug 2, 2005. Check the license (California A50150, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ivy-Joan Erinma Madu
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A50150 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1310 W Stewart Dr Ste 610, Orange, CA 92868
- Phone
- (714) 639-1815
- Enumerated
- Aug 2, 2005
- Record last updated
- Apr 16, 2022
- Fax
- (714) 639-2374
- Medicaid ID
- 00A501500 CA
- Medicare enrollment
- Enrolled (PECOS I20110202000551); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Also registered at 1310 W Stewart Dr Ste 610
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aiping Dai, NPNurse Practitioner1417053026
Verify Ivy-Joan Erinma Madu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A50150Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average endocrinology, diabetes & metabolism physician in 2024
8,375 Medicare Part D claims for 755 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Levothyroxine Sodium900 claims
- Ozempic745 claims
- Nano 2nd Gen Pen Needle537 claims
- Lantus Solostar411 claims
- Metformin Hcl362 claims
- Jardiance286 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $247.34
18 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Ivy-Joan Erinma Madu among 1,131 endocrinology, diabetes & metabolism physician records in California
Ivy-Joan Erinma Madu, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 95% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1981 · median 2003 among the 779 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Orange → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Bogi Andersen, MDOrange, CA 928681164502233
- Yung-In Choi, MDOrange, CA 928681760562854
- Jenny Dai-Ju, M.D.Orange, CA 928681336497775
- Ismail Kasimoglu, MD, PHD, MBAOrange, CA 928681578095774
- Soon Kwon, MDOrange, CA 928681407964448
- Megan McConnell, MDOrange, CA 928681699272211
- Christopher Pham, MDOrange, CA 928681730769928
- Andrew Reikes, MDOrange, CA 928681023198272
Common questions
What is Ivy-Joan Erinma Madu, M.D.'s NPI number?
Ivy-Joan Erinma Madu, M.D.'s National Provider Identifier (NPI) is 1710988662, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ivy-Joan Erinma Madu, M.D. located?
The NPPES record lists a practice address at 1310 W Stewart Dr Ste 610, Orange, CA, 92868. Phone: (714) 639-1815. Providers update this record themselves, so call before visiting.
How can I verify Ivy-Joan Erinma Madu, M.D.'s license?
NPPES lists California license number A50150, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ivy-Joan Erinma Madu, M.D. prescribe under Medicare Part D?
In 2024, Ivy-Joan Erinma Madu, M.D. had 8,375 Medicare Part D claims for 755 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Ivy-Joan Erinma Madu, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.