MARGARET ROSENBERG
NPI 1326416991
Occupational Therapist in Hawthorne, CA
About Margaret Rosenberg NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET ROSENBERG (NPI 1326416991) is an individual occupational therapist in Hawthorne, California, licensed in California (16831) and active in the NPI registry since September 2015. She maintains a secondary practice location in Irvine and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
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
Margaret Rosenberg 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 Reassignment
Medicare enrollment records show Margaret Rosenberg reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hudson, WI 54016
- Reassigned Medicare billing, Wisconsin enrollment
- 13 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.
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.
HAWTHORNE, CA 90250
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 Margaret Rosenberg's NPI number?
The NPI number for Margaret Rosenberg is 1326416991. It was assigned to this individual provider in the NPPES registry on September 12, 2015.
Where is Margaret Rosenberg located?
Margaret Rosenberg practices at 11840 S La Cienega Blvd, Hawthorne, CA 90250. The listed phone number is (424) 269-3400.
What is Margaret Rosenberg's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Margaret Rosenberg enrolled in Medicare?
Yes. Margaret Rosenberg 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 organization bills Medicare for Margaret Rosenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Rosenberg reassigns Medicare benefits to Points Of Stillness LLC (Hudson, WI). 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 Margaret Rosenberg'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 Margaret Rosenberg was last updated on August 29, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.