Dr. Ivy-Joan E. Madu

Name: Dr. Ivy-Joan E. Madu

Specialty: Endocrinology, Diabetes & Metabolism | Subspecialties: Diabetes, Lipid Metabolism

Qualification/Board Certification: MD – University of Benin Faculty of Medicine | Residency – Internal Medicine, New York-Presbyterian Brooklyn Methodist Hospital | Residency – Internal Medicine, Albany Med Health System | Active CA State Medical License (through 2027)

Affiliation(s): Diabetes Associates Medical Group | Providence St. Joseph Hospital-Orange | Hoag Memorial Hospital Presbyterian

Location: Orange, California

Languages Spoken: English

Accepting New Patients: Yes

NPI Number: 1710988662

About the Doctor

Dr. Ivy-Joan E. Madu is a caring and experienced endocrinologist serving patients in Orange, California, with more than two decades of specialized clinical expertise in diabetes management, lipid metabolism, and hormonal health conditions. She earned her medical degree from the University of Benin Faculty of Medicine and completed dual residency training in Internal Medicine — first at New York-Presbyterian Brooklyn Methodist Hospital from 1990 to 1992, and then at Albany Med Health System from 1992 to 1993 — gaining a strong, multidimensional foundation in adult medicine that directly supports her endocrinology practice.

Dr. Madu practices at Diabetes Associates Medical Group in Orange, California — a specialized medical group focused on the comprehensive management of diabetes and metabolic conditions — where she brings focused subspecialty expertise in both Diabetes and Lipid Metabolism to her patient population. Her dual hospital affiliations are particularly noteworthy: she is affiliated with Providence St. Joseph Hospital-Orange, ranked #23 in California and recognized as High Performing in Diabetes, and Hoag Memorial Hospital Presbyterian in Newport Beach, ranked #9 in California and also High Performing in Diabetes. This dual affiliation with two California hospitals specifically recognized for diabetes excellence reflects the high standard of diabetic care accessible to her patients.

Recognized as a clinical expert in 5 conditions — including chronic diabetes, diabetic emergencies, hypertension, high cholesterol, and spinal stenosis — Dr. Madu brings both breadth and depth to her endocrinological practice. A published clinician with multiple professional awards and honors, she is known for her kind and caring approach to patient care. She holds a Very Positive overall rating of 4 out of 5 from 191 reviews and one patient award for clearly explaining health information. She holds an active California State Medical License through 2027 and accepts multiple major insurance plans. Telehealth services may be available — patients are encouraged to call the practice for details. Dr. Madu is currently accepting new patients.

• Over 20 years of endocrinology and metabolic medicine experience
• MD from University of Benin Faculty of Medicine
• Dual Internal Medicine residency at New York-Presbyterian Brooklyn Methodist and Albany Med
• Dual subspecialties in Diabetes and Lipid Metabolism
• Recognized expert in 5 endocrine and metabolic conditions
• Affiliated with two California hospitals both High Performing in Diabetes (#9 and #23 in CA)
• Published clinician with multiple professional awards and honors
• Very Positive 4/5 patient rating from 191 reviews
• Active CA State Medical License through 2027
• Currently accepting new patients

Education & Training

• Medical School: University of Benin Faculty of Medicine – MD
• Residency 1: Internal Medicine, New York-Presbyterian Brooklyn Methodist Hospital (1990–1992)
• Residency 2: Internal Medicine, Albany Med Health System (1992–1993)
• Fellowship/Additional Training: Dual subspecialty focus in Diabetes and Lipid Metabolism; published research and professional honors in endocrinology

Medical Conditions Treated

• Chronic diabetes (Type 1 and Type 2)
• Diabetic emergencies (hypoglycemia and hyperglycemia)
• Chronic hypertension and high blood pressure
• High cholesterol and hyperlipidemia
• Spinal stenosis and spondylosis (endocrine-related management)
• Thyroid disorders (hypothyroidism, hyperthyroidism, thyroid nodules)
• Lipid metabolism disorders and dyslipidemia
• Polycystic ovary syndrome (PCOS)
• Adrenal gland disorders
• Pituitary gland conditions and hormonal imbalances
• Metabolic syndrome and insulin resistance
• Osteoporosis and bone density disorders
• Obesity and weight-related metabolic conditions
• Diabetic complications (neuropathy, nephropathy, retinopathy)

Medical Procedures Performed

• Comprehensive endocrine evaluations and metabolic assessments
• Diabetes management and insulin therapy optimization
• Continuous glucose monitoring (CGM) device management
• Diabetic emergency evaluation and management protocols
• Thyroid evaluation and ultrasound coordination
• Lipid panel interpretation and dyslipidemia management
• Blood pressure monitoring in the context of metabolic disease
• Bone density (DEXA) scan ordering and interpretation
• Hormonal blood testing and laboratory interpretation
• Adrenal and pituitary function assessments
• Advanced pharmacological therapy management including GLP-1 agents
• Biologic and insulin pump therapy consultations
• Telehealth endocrinology consultations (availability subject to confirmation)

Services Offered

Dr. Madu provides a focused and compassionate range of endocrinology services at Diabetes Associates Medical Group, offering patients in the Orange County region specialized expertise in the management of diabetes, metabolic disorders, and hormonal conditions. Her practice is particularly well-positioned within the Southern California diabetes care landscape — affiliated with two hospitals independently recognized for high performance in diabetes — ensuring that her patients benefit from a coordinated, high-quality care ecosystem that extends from outpatient management through inpatient and specialist services when needed. Her dual subspecialty designations in Diabetes and Lipid Metabolism allow her to address the often interconnected challenges of blood sugar control, cardiovascular risk, and lipid dysregulation in a truly integrated way.

Her services include:

• Comprehensive Endocrinology Consultations – thorough evaluation and individualized diagnosis of all hormone-related and metabolic conditions
• Diabetes Management & Optimization – personalized Type 1 and Type 2 diabetes care including insulin therapy, CGM management, and technology-assisted glucose monitoring
• Diabetic Emergency Prevention & Management – proactive blood sugar control strategies and acute management protocols for dangerous glucose fluctuations
• Lipid Metabolism & Cardiovascular Risk Reduction – specialized dyslipidemia management and individualized lipid treatment planning to reduce cardiovascular risk
• Thyroid Disease Management – evaluation and treatment of hypothyroidism, hyperthyroidism, thyroid nodules, and related conditions
• Hypertension Management in Metabolic Disease – integrated management of high blood pressure in the context of diabetes and metabolic syndrome
• Metabolic Syndrome & Obesity Care – comprehensive evaluation and individualized treatment for insulin resistance and weight-related endocrine disorders
• Hormonal Imbalance Treatment – evaluation and management of adrenal, pituitary, and reproductive hormone disorders
• Osteoporosis Screening & Management – bone density assessment and pharmacological management for bone health
• PCOS Evaluation & Management – diagnosis and hormonal management of polycystic ovary syndrome
• Advanced Pharmacological Therapy – consultation and management of cutting-edge treatments including GLP-1 receptor agonists and insulin pump therapy
• Diabetic Complication Monitoring – ongoing surveillance and management of neuropathy, nephropathy, and retinopathy in diabetic patients
• Telehealth Endocrinology Consultations – remote follow-up and management services potentially available; patients are encouraged to call for details

Accepted Insurances

• Cigna (PPO)
• Elevance (EPO, HMO, Medicare, POS, PPO)
• Humana (Medicare, PPO)
• United Healthcare (HMO, Medicare, POS, PPO)

Please contact the practice directly at (714) 639-1815 to confirm your specific plan is currently accepted.

Practice Locations

Location 1 Address: 1310 W Stewart Dr, Suite 610, Orange, CA 92868 Phone: (714) 639-1815

Hospital Affiliations

• Providence St. Joseph Hospital-Orange – Orange, CA (Ranked #23 in California | High Performing in Diabetes)
• Hoag Memorial Hospital Presbyterian – Newport Beach, CA (Ranked #9 in California | High Performing in Diabetes)