MARISSA JANE CASILLO FNP
NPI 1972251817
Nurse Practitioner - Family in Foxboro, MA
About Marissa Jane Casillo Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARISSA JANE CASILLO FNP (NPI 1972251817) is an individual family provider in Foxboro, Massachusetts, licensed in Massachusetts (RN2273512) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS.
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)
Marissa Jane Casillo Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Marissa Casillo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Foxboro, MA 02035
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Neurology Center Of New England PC
- 17 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 02035 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.
FOXBORO, MA 02035
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 Casillo's NPI number?
The NPI number for Marissa Casillo is 1972251817. It was assigned to this individual provider in the NPPES registry on March 10, 2022.
Where is Marissa Casillo located?
Marissa Casillo practices at 18 Washington St, Foxboro, MA 02035. The listed phone number is (781) 551-5812.
What is Marissa Casillo's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Marissa Casillo enrolled in Medicare?
Yes. Marissa Casillo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Marissa Casillo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marissa Casillo reassigns Medicare benefits to Neurology Center Of New England, P.C. (Foxboro, MA). 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 Casillo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marissa Casillo accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Marissa Casillo 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 Marissa Casillo was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Marissa Jane Casillo, FNP · NPI 1972251817
Family physician in Foxboro, Massachusetts. Individual provider, active in the CMS NPPES registry since March 10, 2022.
## Identity
- **NPI:** 1972251817 (Entity type: Individual)
- **Enumerated:** March 10, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN2273512 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 18 WASHINGTON ST, Foxboro, MA 02035-1072
- **Phone:** (781) 551-5812
## 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:** Neurology Center Of New England, P.C. (NPI 1679817027, Foxboro, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972251817) · Data from the CMS NPPES public registry.