ALYSON PISARCZYK MESSINA FNP
NPI 1194435230
Nurse Practitioner - Family in Norwell, MA
About Alyson Pisarczyk Messina Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSON PISARCZYK MESSINA FNP (NPI 1194435230) is an individual family provider in Norwell, Massachusetts, licensed in Massachusetts (RN2317607) and active in the NPI registry since November 2022. She is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and maintains a secondary practice location in Kingston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Alyson Pisarczyk Messina Fnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Alyson Messina reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Norwell, MA 02061
- Reassigned Medicare billing, Massachusetts enrollment
- 346 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Shore Hospital
Acute Care Hospitals · South Weymouth, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02061 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.
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 Alyson Messina's NPI number?
The NPI number for Alyson Messina is 1194435230. It was assigned to this individual provider in the NPPES registry on November 30, 2022.
Where is Alyson Messina located?
Alyson Messina practices at 143 Longwater Dr, Norwell, MA 02061. The listed phone number is (781) 878-5200.
What is Alyson Messina's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Alyson Messina enrolled in Medicare?
Yes. Alyson Messina is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Alyson Messina's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyson Messina reassigns Medicare benefits to South Shore Medical Center, Inc. (Norwell, 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 Alyson Messina's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alyson Messina accept?
Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Alyson Messina 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.
Is Alyson Messina affiliated with any hospitals?
According to CMS data, Alyson Messina is affiliated with South Shore Hospital.
When was this NPI record last updated?
The NPPES record for Alyson Messina was last updated on January 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Alyson Pisarczyk Messina, FNP · NPI 1194435230
Family physician in Norwell, Massachusetts. Individual provider, active in the CMS NPPES registry since November 30, 2022.
## Identity
- **NPI:** 1194435230 (Entity type: Individual)
- **Enumerated:** November 30, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** RN2317607 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 143 LONGWATER DR, Norwell, MA 02061-1683
- **Phone:** (781) 878-5200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** South Shore Medical Center, Inc. (NPI 1669411856, Norwell, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** January 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1194435230) · Data from the CMS NPPES public registry.