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DR. CONSTANTINE IOANNOU M.D.
NPI 1124124003
Psychiatry & Neurology - Psychiatry in East Meadow, NY

Active since September 16, 2006PECOS EnrolledAccepts Medicare Assignment
79.83/100
CMS Quality Rating
2201 HEMPSTEAD TPKE, NASSAU UNIVERSITY MEDICAL CENTER, EAST MEADOW, NY 11554(516) 572-6511 Get Directions Write a Review

NPPES record last updated: May 28, 2014. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Constantine Ioannou M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CONSTANTINE IOANNOU M.D. (NPI 1124124003) is an individual psychiatry provider in East Meadow, New York, licensed in New York (180863) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Nassau University Medical Center, and is a graduate of Other (1985).

NPPES Registry Identity

NPI1124124003
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. CONSTANTINE IOANNOUCredential: M.D.
Location Address2201 HEMPSTEAD TPKE, NASSAU UNIVERSITY MEDICAL CENTEREast Meadow, NY 11554-1859
Mailing Address70 Glen St, Suite 260Glen Cove, NY 11542-2855 · (516) 656-4565
Phone(516) 572-6511
Sole ProprietorYes
Medical School CMSOtherGraduated 1985
Enumeration DateSeptember 16, 2006
Last NPPES UpdateMay 28, 2014
✔ NPI 1124124003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in NY · 180863
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
2201 HEMPSTEAD TPKE, East Meadow, NY 11554
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Other Identifiers 3

Medicare UPINGIG565NY
Medicare PIN71M941NY
Medicaid01845358NY

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Constantine Ioannou M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557252996
PECOS Enrollment IDI20040323001988
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Nassau University Medical Center

Acute Care Hospitals · East Meadow, NY
1/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number330027
Location2201 Hempstead TurnpikeEast Meadow, NY 11554 · Nassau County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11554 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$203.53 typical visit price
range $67.40 – $203.53
Typical copayment $50.88 (range $16.85 – $50.88)
Most-billed visit code 99205
Established Patient
$83.44 typical visit price
range $21.66 – $164.45
Typical copayment $20.86 (range $5.41 – $41.11)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

79.83/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality51.8
Promoting Interoperability86
Improvement Activities40
Cost64.21

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROSITA BERNADOTTE R.N.
Registered Nurse
2201 HEMPSTEAD TPKE, NASSAU UNIVERSITY MEDICAL CENTER
EAST MEADOW, NY 11554
Nassau County (516) 572-6131
KENICE E. DALTON JR. O.T.
Occupational Therapist
2201 HEMPSTEAD TPKE, NASSAU UNIVERSITY MEDICAL CENTER
EAST MEADOW, NY 11554
Nassau County (516) 572-6131
VIVIAN LYNN POLLOCK M.S.W.
Social Worker
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-6131
CICILY BROWN R.N.
Registered Nurse
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-6131
SHAMAILA IDREES M.D.
Psychiatry & Neurology (Psychiatry)
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-6171
DR. SARAH ROSE STEVENS DO
Student in an Organized Health Care Education/Training Program
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-0123
WEI LEONG DO
Student in an Organized Health Care Education/Training Program
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-6177
KONSTANTINOS IOANNIS FORTOUNAS MD
Student in an Organized Health Care Education/Training Program
2201 HEMPSTEAD TPKE
EAST MEADOW, NY 11554
Nassau County (516) 572-6637

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Constantine Ioannou's NPI number?

The NPI number for Constantine Ioannou is 1124124003. It was assigned to this individual provider in the NPPES registry on September 16, 2006.

Where is Constantine Ioannou located?

Constantine Ioannou practices at 2201 Hempstead Tpke Nassau University Medical Center, East Meadow, NY 11554. The listed phone number is (516) 572-6511.

What is Constantine Ioannou's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Constantine Ioannou enrolled in Medicare?

Yes. Constantine Ioannou is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Constantine Ioannou accept?

Health plans from Providence Health Plan list Constantine Ioannou as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Constantine Ioannou affiliated with any hospitals?

According to CMS data, Constantine Ioannou is affiliated with Nassau University Medical Center.

When was this NPI record last updated?

The NPPES record for Constantine Ioannou was last updated on May 28, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.