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IOANNIS KALOGIROU VALTIS
NPI 1023508488
Internal Medicine - Hematology & Oncology in New York, NY

Active since May 11, 2018PECOS EnrolledAccepts Medicare Assignment
1275 YORK AVE, NEW YORK, NY 10065(347) 798-9213 Get Directions Write a Review

NPPES record last updated: February 27, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 27, 2025, Oct 11, 2020, May 11, 2018 (3 updates tracked since 2018).

About Ioannis Kalogirou Valtis NPPES

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

IOANNIS KALOGIROU VALTIS (NPI 1023508488) is an individual hematology & oncology provider in New York, New York, licensed in New York (323055) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS and is a graduate of Harvard Medical School (2018).

NPPES Registry Identity

NPI1023508488
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameIOANNIS KALOGIROU VALTIS
Location Address1275 YORK AVENew York, NY 10065-6007
Mailing Address1275 York AveNew York, NY 10065-6007 · (347) 798-9213
Phone(347) 798-9213
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2018
Enumeration DateMay 11, 2018
Last NPPES UpdateFebruary 27, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 27, 2025
✔ NPI 1023508488 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in NY · 323055
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
1275 YORK AVE, New York, NY 10065
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ioannis Kalogirou Valtis 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 ID3072861350
PECOS Enrollment IDI20250918000023
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.

Medicare Billing Reassignments

3

Medicare enrollment records show Ioannis Kalogirou Valtis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Memorial Hematology Lymphoma Group
Same address
Hematology & Oncology
1275 YORK AVE
New York, NY 10065
  • Reassigned Medicare billing, New York enrollment
  • 428 clinicians in this Medicare group
NPI 1891766366 (646) 227-3813
Mskcc Clinical Practice Plan
Same address
Urology
1275 YORK AVE
New York, NY 10065
  • Reassigned Medicare billing, New York enrollment
  • 248 clinicians in this Medicare group
NPI 1306096508 (212) 639-2000
Msk Harrison
22 mi
Medical Oncology
500 WESTCHESTER AVE
West Harrison, NY 10604
  • Reassigned Medicare billing, New York enrollment
  • 328 clinicians in this Medicare group
NPI 1174923593 (212) 639-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10065 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
$198.19 typical visit price
range $65.69 – $198.19
Typical copayment $49.54 (range $16.42 – $49.54)
Most-billed visit code 99205
Established Patient
$114.88 typical visit price
range $21.20 – $160.66
Typical copayment $28.72 (range $5.30 – $40.16)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MRS. ZANA CORREA NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (646) 422-4450
MS. NICOLE NOELLE REYNOLDS NP
Nurse Practitioner (Acute Care)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 682-7326
MRS. SHARLENE SEECHARRAN RN, NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2203
CHRISTINA MADINABEITIA DURNEY
Nurse Practitioner (Pediatrics)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-5164
ALISON GAIL MASSEY ANP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2000
MICHAEL SCORDO
Internal Medicine (Hematology & Oncology)
1275 YORK AVE
NEW YORK, NY 10065
New York County (212) 639-2000
AMPARO G CAMACHO NP
Nurse Practitioner (Adult Health)
1275 YORK AVE
NEW YORK, NY 10065
New York County (646) 422-4417
DR. INES NIKOLOVSKI MBBS
Special Hospital
1275 YORK AVE, MEMORIAL SLOAN KETTERING CANCER CENTRE
NEW YORK, NY 10065
New York County (212) 639-2000

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 Ioannis Kalogirou Valtis's NPI number?

The NPI number for Ioannis Kalogirou Valtis is 1023508488. It was assigned to this individual provider in the NPPES registry on May 11, 2018.

Where is Ioannis Kalogirou Valtis located?

Ioannis Kalogirou Valtis practices at 1275 York Ave, New York, NY 10065. The listed phone number is (347) 798-9213.

What is Ioannis Kalogirou Valtis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Ioannis Kalogirou Valtis enrolled in Medicare?

Yes. Ioannis Kalogirou Valtis 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.

Which organizations bill Medicare for Ioannis Kalogirou Valtis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ioannis Kalogirou Valtis reassigns Medicare benefits to 3 organizations: Memorial Hematology Lymphoma Group (New York, NY), Mskcc Clinical Practice Plan (New York, NY) and Msk Harrison (West Harrison, NY). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ioannis Kalogirou Valtis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Ioannis Kalogirou Valtis was last updated on February 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.