MIRIAM HOROWITZ MSW
NPI 1508112939
Social Worker in New Square, NY
About Miriam Horowitz Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MIRIAM HOROWITZ MSW (NPI 1508112939) is an individual social worker in New Square, New York, licensed in New York (069334-1) and active in the NPI registry since August 2012. She is enrolled in Medicare PECOS.
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)
Miriam Horowitz Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Miriam Horowitz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Monroe, NY 10950
- Reassigned Medicare billing, New York enrollment
- 97 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.
SPRING VALLEY, NY 10977
SPRING VALLEY, NY 10977
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 Miriam Horowitz's NPI number?
The NPI number for Miriam Horowitz is 1508112939. It was assigned to this individual provider in the NPPES registry on August 3, 2012.
Where is Miriam Horowitz located?
Miriam Horowitz practices at 728 N Main St, New Square, NY 10977. The listed phone number is (845) 354-9300.
What is Miriam Horowitz's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Miriam Horowitz enrolled in Medicare?
Yes. Miriam Horowitz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Miriam Horowitz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Miriam Horowitz reassigns Medicare benefits to Aizer Health , Inc. (Monroe, 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 Miriam Horowitz'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 Miriam Horowitz was last updated on August 3, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Miriam Horowitz, MSW · NPI 1508112939
Social Worker provider in New Square, New York. Individual provider, active in the CMS NPPES registry since August 3, 2012.
## Identity
- **NPI:** 1508112939 (Entity type: Individual)
- **Enumerated:** August 3, 2012
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 069334-1 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 728 N MAIN ST, New Square, NY 10977-8916
- **Phone:** (845) 354-9300
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Aizer Health , Inc. (NPI 1063480218, Monroe, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 3, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1508112939) · Data from the CMS NPPES public registry.