MARGARET MULLIGAN PSYCHOLOGIST PLLC
NPI 1790592145
Clinic/Center - Mental Health (Including Community Mental Health Center) in Garden City, NY
About Margaret Mulligan Psychologist Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET MULLIGAN PSYCHOLOGIST PLLC (NPI 1790592145) is a healthcare organization registered as a mental health (including community mental health center) in Garden City, New York and active in the NPI registry since December 2024. The organization lists Margaret Mulligan, Psychologist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Margaret Mulligan Psychologist Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Margaret Mulligan Psychologist PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Mulligan Psychologist PLLC's NPI number?
The NPI number for Margaret Mulligan Psychologist PLLC is 1790592145. It was assigned to this organization in the NPPES registry on December 18, 2024.
Where is Margaret Mulligan Psychologist PLLC located?
Margaret Mulligan Psychologist PLLC is located at 67 Hilton Ave, Garden City, NY 11530. The listed phone number is (516) 384-9407.
What is Margaret Mulligan Psychologist PLLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Mental Health (Including Community Mental Health Center), with taxonomy code 261QM0801X.
Is Margaret Mulligan Psychologist PLLC enrolled in Medicare?
Yes. Margaret Mulligan Psychologist PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Margaret Mulligan Psychologist PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Margaret Mulligan Psychologist PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Margaret Mulligan Psychologist PLLC was last updated on December 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Margaret Mulligan Psychologist Pllc · NPI 1790592145
Mental Health (Including Community Mental Health Center) organization in Garden City, New York. Organization record, active in the CMS NPPES registry since December 18, 2024.
## Identity
- **NPI:** 1790592145 (Entity type: Organization)
- **Enumerated:** December 18, 2024
- **Primary specialty:** Clinic/Center - Mental Health (Including Community Mental Health Center) · taxonomy 261QM0801X
- **Organization subpart:** No
- **Authorized official:** Margaret Mulligan, PSYCHOLOGIST
## Practice location
- **Address:** 67 HILTON AVE, Garden City, NY 11530-2822
- **Phone:** (516) 384-9407
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Psychologist) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 18, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1790592145) · Data from the CMS NPPES public registry.