MARGARET MARY SLAYBACK LCSW-R, CASAC
NPI 1801062252
Social Worker - Clinical in Massapequa, NY
About Margaret Mary Slayback Lcsw-r, Casac NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET MARY SLAYBACK LCSW-R, CASAC (NPI 1801062252) is an individual clinical provider in Massapequa, New York, licensed in New York (R-031242) and active in the NPI registry since May 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1982).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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 Mary Slayback Lcsw-r, Casac 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 Reassignments
4Medicare enrollment records show Margaret Slayback reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
South Ozone Park, NY 11420
- Reassigned Medicare billing, New York enrollment
- 187 clinicians in this Medicare group
Richmond Hill, NY 11418
- Reassigned Medicare billing, New York enrollment
- 15 clinicians in this Medicare group
Mastic Beach, NY 11951
- Reassigned Medicare billing, New York enrollment
- 6 clinicians in this Medicare group
Center Moriches, NY 11934
- Reassigned Medicare billing, New York enrollment
- 31 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11758 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MASSAPEQUA, NY 11758
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 Slayback's NPI number?
The NPI number for Margaret Slayback is 1801062252. It was assigned to this individual provider in the NPPES registry on May 6, 2008.
Where is Margaret Slayback located?
Margaret Slayback practices at 707 Broadway, Massapequa, NY 11758. The listed phone number is (516) 885-6255.
What is Margaret Slayback's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Margaret Slayback enrolled in Medicare?
Yes. Margaret Slayback 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 organizations bill Medicare for Margaret Slayback's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Slayback reassigns Medicare benefits to 4 organizations: New Horizon Counseling Center Inc (South Ozone Park, NY), Outreach Development Corporation (Richmond Hill, NY), Counseling Connections Community Center Inc (Mastic Beach, NY) and Community Counseling & Lcsw Services PC (Center Moriches, NY). Each 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 Slayback'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 Slayback was last updated on May 6, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Margaret Mary Slayback, LCSW-R, CASAC · NPI 1801062252
Clinical provider in Massapequa, New York. Individual provider, active in the CMS NPPES registry since May 6, 2008.
## Identity
- **NPI:** 1801062252 (Entity type: Individual)
- **Enumerated:** May 6, 2008
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** R-031242 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 707 BROADWAY, Massapequa, NY 11758-2327
- **Phone:** (516) 885-6255
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): New Horizon Counseling Center Inc (NPI 1366430563, South Ozone Park, NY); Outreach Development Corporation (NPI 1083717326, Richmond Hill, NY); Counseling Connections Community Center Inc (NPI 1851116321, Mastic Beach, NY); Community Counseling & Lcsw Services PC (NPI 1770819690, Center Moriches, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** May 6, 2008
- **Other identifiers:** Medicare OSCAR/certification N52581 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1801062252) · Data from the CMS NPPES public registry.