DR. AARON BRETT GROTAS M.D.
NPI 1518092048
Urology in Hewlett, NY
About Dr. Aaron Brett Grotas M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AARON BRETT GROTAS M.D. (NPI 1518092048) is an individual urology provider in Hewlett, New York, licensed in New York (235473) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS, is affiliated with Mount Sinai Beth Israel, and is a graduate of Other (2002).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Aaron Brett Grotas M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Aaron Grotas reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Manhasset, NY 11030
- Reassigned Medicare billing, New York enrollment
- 104 clinicians in this Medicare group
Brooklyn, NY 11236
- Reassigned Medicare billing, New York enrollment
- 27 clinicians in this Medicare group
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- 346 clinicians in this Medicare group
New York, NY 10029
- Reassigned Medicare billing, New York enrollment
- 74 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 31
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.
Mount Sinai Beth Israel
Acute Care Hospitals · New York, NYMount Sinai South Nassau
Acute Care Hospitals · Oceanside, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11557 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.
HEWLETT, NY 11557
HEWLETT, NY 11557
HEWLETT, NY 11557
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 Aaron Grotas's NPI number?
The NPI number for Aaron Grotas is 1518092048. It was assigned to this individual provider in the NPPES registry on February 23, 2007.
Where is Aaron Grotas located?
Aaron Grotas practices at 1800 Rockaway Ave Ste 212, Hewlett, NY 11557. The listed phone number is (516) 593-1838.
What is Aaron Grotas's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Aaron Grotas enrolled in Medicare?
Yes. Aaron Grotas is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Aaron Grotas's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Grotas reassigns Medicare benefits to 4 organizations: Prine Health Medical Group, PLLC (Manhasset, NY), First Medcare, Inc. (Brooklyn, NY), Icahn School Of Medicine At Mount Sinai (New York, NY) and Icahn School Of Medicine At Mount Sinai (New York, NY). 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 Aaron Grotas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aaron Grotas affiliated with any hospitals?
According to CMS data, Aaron Grotas is affiliated with Mount Sinai Beth Israel and Mount Sinai South Nassau.
When was this NPI record last updated?
The NPPES record for Aaron Grotas was last updated on October 1, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.