MARTHA A KATZ LCSW
NPI 1861545741
Social Worker - Clinical in Brooklyn, NY
About Martha A Katz Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARTHA A KATZ LCSW (NPI 1861545741) is an individual clinical provider in Brooklyn, New York, licensed in New York (RO55381-1) and active in the NPI registry since January 2007. 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)
Martha A Katz Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Martha Katz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02108
- Reassigned Medicare billing, New York 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11236 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Martha Katz's NPI number?
The NPI number for Martha Katz is 1861545741. It was assigned to this individual provider in the NPPES registry on January 22, 2007.
Where is Martha Katz located?
Martha Katz practices at 615 E 104th St, Brooklyn, NY 11236. The listed phone number is (718) 947-3045.
What is Martha Katz's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Martha Katz enrolled in Medicare?
Yes. Martha Katz is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Martha Katz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martha Katz reassigns Medicare benefits to Topaz Medical Of New York PC (Boston, MA). 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 Martha Katz'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 Martha Katz was last updated on November 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 months 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.
# Martha A Katz, LCSW · NPI 1861545741
Clinical provider in Brooklyn, New York. Individual provider, active in the CMS NPPES registry since January 22, 2007.
## Identity
- **NPI:** 1861545741 (Entity type: Individual)
- **Enumerated:** January 22, 2007
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** RO55381-1 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 615 E 104TH ST, Brooklyn, NY 11236-2503
- **Phone:** (718) 947-3045
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Topaz Medical Of New York PC (NPI 1487480810, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 5, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1861545741) · Data from the CMS NPPES public registry.