ALYSSA GRIECO
NPI 1952283210
Nurse Practitioner - Psychiatric/Mental Health in Rockland, DE
About Alyssa Grieco NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA GRIECO (NPI 1952283210) is an individual psychiatric/mental health provider in Rockland, Delaware, licensed in Delaware (L8-0010878) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alyssa Grieco is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alyssa Grieco reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wilmington, DE 19803
- Reassigned Medicare billing, Delaware enrollment
- 526 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 19732 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alyssa Grieco's NPI number?
The NPI number for Alyssa Grieco is 1952283210. It was assigned to this individual provider in the NPPES registry on July 25, 2025.
Where is Alyssa Grieco located?
Alyssa Grieco practices at PO Box 191, Rockland, DE 19732. The listed phone number is (800) 416-4441.
What is Alyssa Grieco's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Alyssa Grieco enrolled in Medicare?
Yes. Alyssa Grieco is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alyssa Grieco's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Grieco reassigns Medicare benefits to The Nemours Foundation (Wilmington, DE). 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 Alyssa Grieco's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyssa Grieco accept?
Health plans from AmeriHealth Caritas Next list Alyssa Grieco as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Alyssa Grieco was last updated on September 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Alyssa Grieco · NPI 1952283210
Psychiatric/Mental Health physician in Rockland, Delaware. Individual provider, active in the CMS NPPES registry since July 25, 2025.
## Identity
- **NPI:** 1952283210 (Entity type: Individual)
- **Enumerated:** July 25, 2025
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** L8-0010878 (Delaware)
- **Sole proprietor:** No
## Practice location
- **Address:** PO BOX 191, Rockland, DE 19732-0191
- **Phone:** (800) 416-4441
## 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:** The Nemours Foundation (NPI 1366594699, Wilmington, DE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** September 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1952283210) · Data from the CMS NPPES public registry.