LETITIA MAZZAFERRO
NPI 1427406222
Nurse Anesthetist, Certified Registered in East Weymouth, MA
About Letitia Mazzaferro NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LETITIA MAZZAFERRO (NPI 1427406222) is an individual nurse anesthetist, certified registered in East Weymouth, Massachusetts, licensed in Massachusetts (RN2290780) and active in the NPI registry since June 2016. She is enrolled in Medicare PECOS, is affiliated with New England Baptist Hospital, and is a graduate of Other (2018).
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 and accepts Medicare assignment
Letitia Mazzaferro 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 Reassignments
4Medicare enrollment records show Letitia Mazzaferro reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Weymouth, MA 02189
- Reassigned Medicare billing, Massachusetts enrollment
- 115 clinicians in this Medicare group
South Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 93 clinicians in this Medicare group
Milton, MA 02186
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1861216038 (Massachusetts)
- 556 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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 4
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
New England Baptist Hospital
Acute Care Hospitals · Boston, MABeth Israel Deaconess Hospital - Milton
Acute Care Hospitals · Milton, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02189 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WEYMOUTH, MA 02189
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 Letitia Mazzaferro's NPI number?
The NPI number for Letitia Mazzaferro is 1427406222. It was assigned to this individual provider in the NPPES registry on June 2, 2016.
Where is Letitia Mazzaferro located?
Letitia Mazzaferro practices at 163 Libbey Pkwy Ste 301, East Weymouth, MA 02189. The listed phone number is (781) 337-4224.
What is Letitia Mazzaferro's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Letitia Mazzaferro enrolled in Medicare?
Yes. Letitia Mazzaferro 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 organizations bill Medicare for Letitia Mazzaferro's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Letitia Mazzaferro reassigns Medicare benefits to 4 organizations: Capa Anesthesia LLC (Weymouth, MA), South Suburban Gastroenterology, PC (South Weymouth, MA), Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (Milton, MA) and Brigham & Womens Physicians Organization Inc (Boston, MA). Each 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 Letitia Mazzaferro's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Letitia Mazzaferro affiliated with any hospitals?
According to CMS data, Letitia Mazzaferro is affiliated with New England Baptist Hospital, Beth Israel Deaconess Hospital - Milton and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Letitia Mazzaferro was last updated on August 14, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Letitia Mazzaferro · NPI 1427406222
Nurse Anesthetist, Certified Registered physician in East Weymouth, Massachusetts. Individual provider, active in the CMS NPPES registry since June 2, 2016.
## Identity
- **NPI:** 1427406222 (Entity type: Individual)
- **Enumerated:** June 2, 2016
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** RN2290780 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 163 LIBBEY PKWY STE 301, East Weymouth, MA 02189
- **Phone:** (781) 337-4224 · **Fax:** (781) 335-0429
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Capa Anesthesia LLC (NPI 1629723002, Weymouth, MA); South Suburban Gastroenterology, PC (NPI 1114948478, South Weymouth, MA); Associated Physicians Of Harvard Medical Faculty Physicians At Beth Is (NPI 1245773308, Milton, MA); Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 14, 2018
---
Source: [NPI Profile](https://npiprofile.com/npi/1427406222) · Data from the CMS NPPES public registry.