MR. CIRO THOMAS GRELLO MD
NPI 1598836231
Pediatrics in West Islip, NY
About Mr. Ciro Thomas Grello Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. CIRO THOMAS GRELLO MD (NPI 1598836231) is an individual pediatrics provider in West Islip, New York, licensed in New York (187985) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS.
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 (PECOS)
Mr. Ciro Thomas Grello Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ciro Grello reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Farmingdale, NY 11735
- Reassigned Medicare billing, New York enrollment
- 944 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 11795 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 Ciro Grello's NPI number?
The NPI number for Ciro Grello is 1598836231. It was assigned to this individual provider in the NPPES registry on November 13, 2006.
Where is Ciro Grello located?
Ciro Grello practices at 390 Montauk Highway, West Islip, NY 11795. The listed phone number is (631) 422-0700.
What is Ciro Grello's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Ciro Grello enrolled in Medicare?
Yes. Ciro Grello is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ciro Grello's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ciro Grello reassigns Medicare benefits to Chs Physician Partners, PC (Farmingdale, NY). 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 Ciro Grello'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 Ciro Grello was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.