CLAIRE GROSSMAN OTR/L
NPI 1174305353
Occupational Therapist in Brooklyn, NY
About Claire Grossman Otr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CLAIRE GROSSMAN OTR/L (NPI 1174305353) is an individual occupational therapist in Brooklyn, New York, licensed in New York (027395) and active in the NPI registry since October 2023.
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)
Claire Grossman Otr/l is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Claire Grossman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10022
- Reassigned Medicare billing, New York enrollment
- 706 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 6
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.
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.
BROOKLYN, NY 11201
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 Claire Grossman's NPI number?
The NPI number for Claire Grossman is 1174305353. It was assigned to this individual provider in the NPPES registry on October 20, 2023.
Where is Claire Grossman located?
Claire Grossman practices at 41 Clark St, Brooklyn, NY 11201. The listed phone number is (646) 518-5566.
What is Claire Grossman's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Claire Grossman enrolled in Medicare?
Yes. Claire Grossman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Claire Grossman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Claire Grossman reassigns Medicare benefits to Spear Physical And Occupational Therapy, LLC (New York, 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 Claire Grossman'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 Claire Grossman was last updated on October 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.