DR. GREG SACKS MD, MPH, PHD
NPI 1093004814
Surgery - Surgical Oncology in New York, NY
About Dr. Greg Sacks Md, Mph, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREG SACKS MD, MPH, PHD (NPI 1093004814) is an individual surgical oncology provider in New York, New York, licensed in New York (296825-1) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Bellevue Hospital Center, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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. Greg Sacks Md, Mph, Phd 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 Reassignment
Medicare enrollment records show Greg Sacks reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boynton Beach, FL 33426
- Reassigned Medicare billing, New York enrollment
- 7,712 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bellevue Hospital Center
Acute Care Hospitals · New York, NYNyu Langone Hospitals
Acute Care Hospitals · New York, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 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 10016
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 Greg Sacks's NPI number?
The NPI number for Greg Sacks is 1093004814. It was assigned to this individual provider in the NPPES registry on April 1, 2011.
Where is Greg Sacks located?
Greg Sacks practices at 530 1st Ave, New York, NY 10016. The listed phone number is (212) 263-7302.
What is Greg Sacks's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Greg Sacks enrolled in Medicare?
Yes. Greg Sacks 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 organization bills Medicare for Greg Sacks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Greg Sacks reassigns Medicare benefits to New York University (Boynton Beach, FL). The 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 Greg Sacks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Greg Sacks affiliated with any hospitals?
According to CMS data, Greg Sacks is affiliated with Bellevue Hospital Center and Nyu Langone Hospitals.
When was this NPI record last updated?
The NPPES record for Greg Sacks was last updated on January 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Greg Sacks, MD, MPH, PHD · NPI 1093004814
Surgical Oncology physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 1, 2011.
## Identity
- **NPI:** 1093004814 (Entity type: Individual)
- **Enumerated:** April 1, 2011
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 296825-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 530 1ST AVE, New York, NY 10016-6402
- **Phone:** (212) 263-7302
## 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:** New York University (NPI 1285826438, Boynton Beach, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2011
## Record status
- **NPPES last updated:** January 10, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1093004814) · Data from the CMS NPPES public registry.