ARIEL ZWELLING
NPI 1336383520
Occupational Therapist in Newton, MA
About Ariel Zwelling NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ARIEL ZWELLING (NPI 1336383520) is an individual occupational therapist in Newton, Massachusetts, licensed in Massachusetts (9805) and active in the NPI registry since May 2009. She is a graduate of Other (2009).
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)
Ariel Zwelling is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ariel Zwelling reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Winchester, VA 22603
- Reassigned Medicare billing, District of Columbia and Virginia enrollments
- 696 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 3
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.
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 Ariel Zwelling's NPI number?
The NPI number for Ariel Zwelling is 1336383520. It was assigned to this individual provider in the NPPES registry on May 1, 2009.
Where is Ariel Zwelling located?
Ariel Zwelling practices at 305 Centre St, Newton, MA 02458. The listed phone number is (617) 244-8480.
What is Ariel Zwelling's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Ariel Zwelling enrolled in Medicare?
Yes. Ariel Zwelling is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ariel Zwelling's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ariel Zwelling reassigns Medicare benefits to Fox Rehabilitation Services LLC (Winchester, VA). 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 Ariel Zwelling'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 Ariel Zwelling was last updated on May 1, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.