Quick answers
- Where does Andreas Giannakou see patients?
- Medicare's clinician data lists 3 practice locations, including New York, NY and Commack, NY. Call before your visit to confirm the address.
- What is Andreas Giannakou's specialty?
- Medicare lists Surgical Oncology as the primary specialty, and also General Surgery.
- Does Andreas Giannakou accept Medicare assignment?
- Yes. Medicare's clinician data says Andreas Giannakou accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Andreas Giannakou?
- (646) 888-7100, as listed in official Medicare / NPI Registry data.
- What is Andreas Giannakou's NPI number?
- 1326544651. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Andreas Giannakou is enrolled with Medicare (CMS data updated 2026-10-02).
- 1133 York AveNew York, NY 10065 (646) 888‑7100
- 1275 York AveNew York, NY 10065 (212) 639‑2000
- 650 Commack RdCommack, NY 11725 (631) 623‑4000
Group practices
Medicare enrollment lists Andreas Giannakou as a member of these groups (CMS data updated 2026-10-02).
- MSKCC Surgery Group369 clinicians in the group
- MSKCC Regional Network136 clinicians in the group
Specialties
- Surgical Oncologyprimary
- General Surgeryalso
Other surgical oncologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326544651 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians