DR. GREGG DAVID BLUMBERG DO
NPI 1659994440
Radiology - Diagnostic Radiology in Mineola, NY
About Dr. Gregg David Blumberg Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGG DAVID BLUMBERG DO (NPI 1659994440) is an individual diagnostic radiology provider in Mineola, New York, licensed in New Jersey (1659994440) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS, is affiliated with Clara Maass Medical Center, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (2020).
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. Gregg David Blumberg Do 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 Gregg Blumberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Livingston, NJ 07039
- Reassigned Medicare billing, New Jersey enrollment
- 1,913 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Clara Maass Medical Center
Acute Care Hospitals · Belleville, NJJersey City Medical Center
Acute Care Hospitals · Jersey City, NJPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Gregg Blumberg's NPI number?
The NPI number for Gregg Blumberg is 1659994440. It was assigned to this individual provider in the NPPES registry on May 27, 2020.
Where is Gregg Blumberg located?
Gregg Blumberg practices at Nyu Lisom 222 Station Plaza North Suite 510, Mineola, NY 11501. The listed phone number is (516) 663-8794.
What is Gregg Blumberg's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Gregg Blumberg enrolled in Medicare?
Yes. Gregg Blumberg 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 Gregg Blumberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregg Blumberg reassigns Medicare benefits to Rwjbh Observation Associates LLC (Livingston, NJ). 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 Gregg Blumberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Gregg Blumberg affiliated with any hospitals?
According to CMS data, Gregg Blumberg is affiliated with Clara Maass Medical Center and Jersey City Medical Center.
When was this NPI record last updated?
The NPPES record for Gregg Blumberg was last updated on April 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.