JI
18 Years of Experience
Accepting patients
Online booking
Who is Dr. Ioannou, Nephrologist in Rockville Centre, NY?
Dr. John Ioannou, MD is a Nephrologist, who primarily practices in Rockville Centre, NY with 2 additional practice locations. He has been practicing for over 18 years and is board certified. Dr. Ioannou graduated from Icahn School of Medicine at Mount Sinai and completed his residency at NSLIJHS/Hofstra North Shore-LIJ School of Medicine at North Shore University Hospital Program. Dr. Ioannou is fluent in English, Greek, Modern (1453-), and Spanish, and is currently seeing new patients. Dr. Ioannou’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ioannou’s office at (516) 764-7070.
Where did Dr. Ioannou go to medical school and complete their residency?
Residency: NSLIJHS/Hofstra North Shore-LIJ School of Medicine at North Shore University Hospital Program
Medical School: Icahn School of Medicine at Mount Sinai
Is Dr. Ioannou board certified as a Nephrologist?
Yes, Dr. John Ioannou, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Ioannou speak?
Dr. Ioannou and their clinical team can communicate with patients in the following languages:
English
Greek, Modern (1453-)
Spanish
What conditions does Dr. Ioannou treat?
As a Nephrologist, Dr. Ioannou diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Ioannou. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- End-Stage Kidney Disease
- Chronic Kidney Disease, Stage 3a
- Chronic Kidney Disease, Stage 4 (Severe)
- Chronic Kidney Disease, Stage 1
- Chronic Kidney Disease, Stage 2 (Mild)
- Chronic Kidney Disease Stage 3b
- Chronic Kidney Disease, Stage 3
- Chronic Kidney Disease Stage 5
- Chronic Kidney Disease
- Kidney Failure
- Chronic Kidney Disease (CKD)
- Helping Your Child Adapt to Life with Chronic Kidney Disease
- Mineral & Bone Disorder in Chronic Kidney Disease
- ESRD
- End-Stage Renal Failure
- CKD Stage 3a
- Moderate Chronic Kidney Disease
- CKD Stage 4
- Severe Chronic Kidney Disease
- CKD Stage 1
- Early Chronic Kidney Disease
- CKD Stage 2
- Mild Chronic Kidney Disease
- CKD Stage 3b
- CKD Stage 3
- CKD Stage 5
- End-Stage Renal Disease
- CKD
- Long-Term Kidney Disease
ICD-10 Codes:
- N186: End stage renal disease
- N1831: Chronic kidney disease, stage 3a
- N184: Chronic kidney disease, stage 4 (severe)
- N181: Chronic kidney disease, stage 1
- N182: Chronic kidney disease, stage 2 (mild)
- N1832: Chronic kidney disease, stage 3b
- N1830: Chronic kidney disease, stage 3 unspecified
- N185: Chronic kidney disease, stage 5
- N189: Chronic kidney disease, unspecified
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Acute Kidney Failure
- Kidney Failure
- Acute Renal Failure
- Sudden Kidney Failure
ICD-10 Codes:
- N179: Acute kidney failure, unspecified
Also known as:
- Low Sodium Levels
- High Potassium
- Fluid and Electrolyte Balance
- Sodium
- Potassium
- Hyponatremia
- Low Blood Sodium
- Sodium Deficiency
- Hyperkalemia
- Excess Potassium
ICD-10 Codes:
- E871: Hypo-osmolality and hyponatremia
- E875: Hyperkalemia
Also known as:
- High Cholesterol
- Cholesterol
- Triglycerides
- Hyperlipidemia
- High lipids
- Dyslipidemia
ICD-10 Codes:
- E785: Hyperlipidemia, unspecified
Also known as:
- Peripheral Artery Disease
- PVD
- PAD
- Poor Circulation in Legs
- Blocked Leg Arteries
ICD-10 Codes:
- I739: Peripheral vascular disease, unspecified
Also known as:
- Acute Kidney Failure with Tubule Damage
- Kidney Failure
- Acute Tubular Necrosis
- ATN
- Kidney Tubule Death
ICD-10 Codes:
- N170: Acute kidney failure with tubular necrosis
Also known as:
- Overactive Parathyroid Glands due to Kidney Disease
- Parathyroid Disorder
- Renal Hyperparathyroidism
- Secondary Hyperparathyroidism
ICD-10 Codes:
- N2581: Secondary hyperparathyroidism of renal origin
Also known as:
- Having a Kidney Transplant
- Kidney Transplantation
- Kidney Transplant
- Renal transplant
- Kidney replacement surgery
- Post-kidney transplant
ICD-10 Codes:
- Z940: Kidney transplant status
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Viral Infection Exposure
- Viral Infection
- Viral Disease Contact
- Suspected Viral Infection
- Exposure to Viruses
ICD-10 Codes:
- Z20828: Contact with and (suspected) exposure to other viral communicable diseases
Which procedures does Dr. Ioannou perform as a Nephrologist?
As a Nephrologist, procedures performed by Dr. John Ioannou may include:
- Dialysis
- Kidney and Urinary Perfusion Scan
- Kidney Biopsy
- Kidney Transplant
- Kidney Ultrasound
- Nephrology Consultation
- Nephrology Follow Up
- Peritoneal Dialysis
For detailed information, please contact Dr. Ioannou's office.
Does Dr. Ioannou accept my insurance?
Dr. Ioannou accepts most major insurance plans. Important: Please call our office at (516) 764-7070 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Ioannou accept in Rockville Centre, NY?
Dr. Ioannou in Rockville Centre, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
ArcBest Corporation
CVS Health (formerly Aetna)
EmblemHealth
Express Scripts
MagnaCare Rx
Medicare
National Benefit Fund
Service Employees International Union (SEIU)
State of Tennessee
View All Insurances
Where is Dr. Ioannou's office located?
Dr. John Ioannou's Primary Practice
242 Merrick Rd Ste 304
Rockville Centre, NY 11570
(516) 764-7070
Would you like to schedule an appointment with Dr. John Ioannou?
Dr. Ioannou has appointments available at his Rockville Centre, NY office, as well as 2 other locations. Please select a location, date, and time below.
What is Dr. Ioannou's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Ioannou's National Provider Identifier (NPI) number is 1851330328.
What common questions do patients ask about Dr. Ioannou?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Ioannou
What is Dr. John Ioannou's specialty?
Dr. Ioannou is a Nephrologist near Rockville Centre, NY. An internist who manages disorders related to the kidneys, including high blood pressure, fluid and mineral balance, and dialysis for waste removal when kidney function is impaired. This specialist also collaborates with surgeons regarding kidney transplantation. Contact Dr. Ioannou to book an appointment today.
Is this Dr. John Ioannou affiliated with a ranked Castle Connolly Top Hospital?
No, Ioannou is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Mount Sinai South Nassau. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Nephrologist?
Explore Nephrologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is John Ioannou accepting new patients in Rockville Centre, NY?
Yes, Dr. John Ioannou is accepting new patients at this time.
Does Dr. John Ioannou offer online booking?
Yes, you can use online booking to schedule an appointment with Dr. Ioannou, or call (516) 764-7070 for more information.
How can I make an appointment with John Ioannou?
Please contact Dr. Ioannou's office at (516) 764-7070 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. John Ioannou have?
Dr. John Ioannou is certified by the American Board of Internal Medicine.
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