CECILIA GRIFFIN CASSIDY APRN, CDE
NPI 1124410634
Nurse Practitioner - Adult Health in Greenlawn, NY
About Cecilia Griffin Cassidy Aprn, Cde NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CECILIA GRIFFIN CASSIDY APRN, CDE (NPI 1124410634) is an individual adult health provider in Greenlawn, New York, licensed in New York (292979) and active in the NPI registry since February 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in Greenlawn.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Cecilia Griffin Cassidy Aprn, Cde is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Cecilia Cassidy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greenlawn, NY 11740
- Reassigned Medicare billing, New York enrollment
- 572 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 11740 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
GREENLAWN, NY 11740
GREENLAWN, NY 11740
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 Cecilia Cassidy's NPI number?
The NPI number for Cecilia Cassidy is 1124410634. It was assigned to this individual provider in the NPPES registry on February 21, 2015. The provider is also known as Cecilia Mary Criffin Rn.
Where is Cecilia Cassidy located?
Cecilia Cassidy practices at 5 Cuba Hill Rd, Greenlawn, NY 11740. The listed phone number is (631) 628-5000.
What is Cecilia Cassidy's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Cecilia Cassidy enrolled in Medicare?
Yes. Cecilia Cassidy is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Cecilia Cassidy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cecilia Cassidy reassigns Medicare benefits to North Shore Medical Group Of The Mount Sinai School Of Medicine (Greenlawn, 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 Cecilia Cassidy'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 Cecilia Cassidy was last updated on August 28, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Cecilia Griffin Cassidy, APRN, CDE · NPI 1124410634
Adult Health physician in Greenlawn, New York. Individual provider, active in the CMS NPPES registry since February 21, 2015.
## Identity
- **NPI:** 1124410634 (Entity type: Individual)
- **Enumerated:** February 21, 2015
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 292979 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5 CUBA HILL RD, Greenlawn, NY 11740
- **Phone:** (631) 628-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** North Shore Medical Group Of The Mount Sinai School Of Medicine (NPI 1275640609, Greenlawn, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 28, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1124410634) · Data from the CMS NPPES public registry.