LEAH P GRUSS MD
NPI 1184669004
Radiology - Diagnostic Radiology in New York, NY
About Leah P Gruss Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEAH P GRUSS MD (NPI 1184669004) is an individual diagnostic radiology provider in New York, New York, licensed in New York (173074-1) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leah P Gruss Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Leah Gruss reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 87 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 clinicians in this Medicare group
New York, NY 10019
- Reassigned Medicare billing, New York enrollment
- 232 clinicians in this Medicare group
Bronxville, NY 10708
- Reassigned Medicare billing, New York enrollment
- 531 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 19
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10032 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.
Reported Quality Measures
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.
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 Leah Gruss's NPI number?
The NPI number for Leah Gruss is 1184669004. It was assigned to this individual provider in the NPPES registry on June 17, 2006.
Where is Leah Gruss located?
Leah Gruss practices at 630 W 168th St # Mc28, New York, NY 10032. The listed phone number is (212) 305-1948.
What is Leah Gruss's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Leah Gruss enrolled in Medicare?
Yes. Leah Gruss is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Leah Gruss's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leah Gruss reassigns Medicare benefits to 4 organizations: Trustees Of Columbia University In The City Of New York (New York, NY), Trustees Of Columbia University In The City Of New York (New York, NY), Columbiadoctors/Newyork-Presbyterianimaging (New York, NY) and Lawrence Medical Associates, PC (Bronxville, 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 Leah Gruss'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 Leah Gruss was last updated on November 27, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.