MS. MARGARET FITZGERALD-COWLISHAW LCSW
NPI 1972529253
Social Worker - Clinical in East Islip, NY
About Ms. Margaret Fitzgerald-cowlishaw Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MARGARET FITZGERALD-COWLISHAW LCSW (NPI 1972529253) is an individual clinical provider in East Islip, New York, licensed in New York (R045443) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1992).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Margaret Fitzgerald-cowlishaw Lcsw 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11730 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EAST ISLIP, NY 11730
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 Fitzgerald-cowlishaw's NPI number?
The NPI number for Margaret Fitzgerald-cowlishaw is 1972529253. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is Margaret Fitzgerald-cowlishaw located?
Margaret Fitzgerald-cowlishaw practices at 107 W Main St, East Islip, NY 11730. The listed phone number is (631) 666-1615.
What is Margaret Fitzgerald-cowlishaw's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Margaret Fitzgerald-cowlishaw enrolled in Medicare?
Yes. Margaret Fitzgerald-cowlishaw 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.
When was this NPI record last updated?
The NPPES record for Margaret Fitzgerald-cowlishaw was last updated on March 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ms. Margaret Fitzgerald-Cowlishaw, LCSW · NPI 1972529253
Clinical provider in East Islip, New York. Individual provider, active in the CMS NPPES registry since July 13, 2006.
## Identity
- **NPI:** 1972529253 (Entity type: Individual)
- **Enumerated:** July 13, 2006
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** R045443 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 107 W MAIN ST, East Islip, NY 11730-2337
- **Phone:** (631) 666-1615 · **Fax:** (631) 666-1709
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Medical school:** Other, class of 1992
## Record status
- **NPPES last updated:** March 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972529253) · Data from the CMS NPPES public registry.