MRS. TAMMI JANE MAGAZZU WHNP
NPI 1821429945
Nurse Practitioner - Women's Health in Weston, MA
About Mrs. Tammi Jane Magazzu Whnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. TAMMI JANE MAGAZZU WHNP (NPI 1821429945) is an individual women's health provider in Weston, Massachusetts, licensed in Massachusetts (212761) and active in the NPI registry since November 2013. 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)
Mrs. Tammi Jane Magazzu Whnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Tammi Magazzu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Winchester, MA 01890
- Reassigned Medicare billing, Massachusetts enrollment
- 221 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 02493 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 Tammi Magazzu's NPI number?
The NPI number for Tammi Magazzu is 1821429945. It was assigned to this individual provider in the NPPES registry on November 30, 2013.
Where is Tammi Magazzu located?
Tammi Magazzu practices at 235 Wellesley St, Weston, MA 02493. The listed phone number is (617) 759-6588.
What is Tammi Magazzu's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Tammi Magazzu enrolled in Medicare?
Yes. Tammi Magazzu is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Tammi Magazzu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammi Magazzu reassigns Medicare benefits to Winchester Physician Associates, Inc (Winchester, 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 Tammi Magazzu'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 Tammi Magazzu was last updated on May 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mrs. Tammi Jane Magazzu, WHNP · NPI 1821429945
Women's Health physician in Weston, Massachusetts. Individual provider, active in the CMS NPPES registry since November 30, 2013.
## Identity
- **NPI:** 1821429945 (Entity type: Individual)
- **Enumerated:** November 30, 2013
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** 212761 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 235 WELLESLEY ST, Weston, MA 02493-1572
- **Phone:** (617) 759-6588
## 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:** Winchester Physician Associates, Inc (NPI 1184606865, Winchester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 20, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1821429945) · Data from the CMS NPPES public registry.