NENAD GRLIC DO
NPI 1023048782
Emergency Medicine in Rockville Centre, NY
About Nenad Grlic Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NENAD GRLIC DO (NPI 1023048782) is an individual emergency medicine provider in Rockville Centre, New York, licensed in New York (206781) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai South Nassau, and is a graduate of New York College Of Osteo Medicine Of New York Institute Of Technology (1992).
NPPES Registry Identity
Specialties & Licenses 2
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
Nenad Grlic 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 Reassignments
8Medicare enrollment records show Nenad Grlic reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Rockville Centre, NY 11571
- Reassigned Medicare billing, New York enrollment
- 266 clinicians in this Medicare group
Rockville Centre, NY 11570
- Reassigned Medicare billing, New York enrollment
- 16 clinicians in this Medicare group
Garden City, NY 11530
- Reassigned Medicare billing, New York enrollment
- 9 clinicians in this Medicare group
Roslyn, NY 11576
- Reassigned Medicare billing, New York enrollment
- 187 clinicians in this Medicare group
Bethpage, NY 11714
- Reassigned Medicare billing, New York enrollment
- 211 clinicians in this Medicare group
Woodside, NY 11377
- Reassigned Medicare billing, New York enrollment
- 102 clinicians in this Medicare group
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- 395 clinicians in this Medicare group
West Islip, NY 11795
- Reassigned Medicare billing, New York enrollment
- 91 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 21
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mount Sinai South Nassau
Acute Care Hospitals · Oceanside, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11571 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 19
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ROCKVILLE CENTRE, NY 11571
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 Nenad Grlic's NPI number?
The NPI number for Nenad Grlic is 1023048782. It was assigned to this individual provider in the NPPES registry on July 5, 2006.
Where is Nenad Grlic located?
Nenad Grlic practices at 1000 N. Village Avenue, Rockville Centre, NY 11571. The listed phone number is (516) 705-1818.
What is Nenad Grlic's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nenad Grlic enrolled in Medicare?
Yes. Nenad Grlic 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 Nenad Grlic's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nenad Grlic reassigns Medicare benefits to 8 organizations: Mercy Medical Center (Rockville Centre, NY), Ally Medical PC (Rockville Centre, NY), New Health Medical PC (Garden City, NY), St Francis Hospital (Roslyn, NY), St. Joseph Hospital (Bethpage, NY) and 3 more organizations, listed in the Medicare section above. 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 Nenad Grlic's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nenad Grlic affiliated with any hospitals?
According to CMS data, Nenad Grlic is affiliated with Mount Sinai South Nassau.
When was this NPI record last updated?
The NPPES record for Nenad Grlic was last updated on February 11, 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.