DR. ANDREAS GIANNAKOU MD
NPI 1326544651
Surgery - Surgical Oncology in New York, NY
About Dr. Andreas Giannakou Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREAS GIANNAKOU MD (NPI 1326544651) is an individual surgical oncology provider in New York, New York, licensed in New York (333009) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Andreas Giannakou Md 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.
Medicare Billing Reassignments
2Medicare enrollment records show Andreas Giannakou reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 452 clinicians in this Medicare group
Commack, NY 11725
- Reassigned Medicare billing, New York enrollment
- 265 clinicians in this Medicare group
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.
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.
NEW YORK, NY 10065
NEW YORK, NY 10065
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 Andreas Giannakou's NPI number?
The NPI number for Andreas Giannakou is 1326544651. It was assigned to this individual provider in the NPPES registry on April 4, 2018.
Where is Andreas Giannakou located?
Andreas Giannakou practices at 300 E 66th St, New York, NY 10065. The listed phone number is (646) 888-5246.
What is Andreas Giannakou's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Andreas Giannakou enrolled in Medicare?
Yes. Andreas Giannakou 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 Andreas Giannakou's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andreas Giannakou reassigns Medicare benefits to 2 organizations: Mskcc Surgery Group (New York, NY) and Mskcc Regional Network (Commack, 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 Andreas Giannakou'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 Andreas Giannakou was last updated on March 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Andreas Giannakou, MD · NPI 1326544651
Surgical Oncology physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 4, 2018.
## Identity
- **NPI:** 1326544651 (Entity type: Individual)
- **Enumerated:** April 4, 2018
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 333009 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 E 66TH ST, New York, NY 10065-6800
- **Phone:** (646) 888-5246
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Mskcc Surgery Group (NPI 1699766261, New York, NY); Mskcc Regional Network (NPI 1740251297, Commack, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** March 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1326544651) · Data from the CMS NPPES public registry.