MS. MARISSA SIMON LCSW
NPI 1881006708
Social Worker - Clinical in New Hyde Park, NY
About Ms. Marissa Simon Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MARISSA SIMON LCSW (NPI 1881006708) is an individual clinical provider in New Hyde Park, New York, licensed in New York (73 079580) and active in the NPI registry since May 2014. 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)
Ms. Marissa Simon Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marissa Simon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Manhasset, NY 11030
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: North Shore-Lij Medical Group PC
- 63 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 11042 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW HYDE PARK, NY 11042
NEW HYDE PARK, NY 11042
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 Marissa Simon's NPI number?
The NPI number for Marissa Simon is 1881006708. It was assigned to this individual provider in the NPPES registry on May 27, 2014.
Where is Marissa Simon located?
Marissa Simon practices at 1983 Marcus Ave Ste C102, New Hyde Park, NY 11042. The listed phone number is (516) 876-4100.
What is Marissa Simon's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Marissa Simon enrolled in Medicare?
Yes. Marissa Simon is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marissa Simon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Simon reassigns Medicare benefits to North Shore-Lij Medical Group P.C. (Manhasset, 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 Marissa Simon'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 Marissa Simon was last updated on May 27, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.