DR. SYLVIA ISABEL MIGNON PHD
NPI 1447733225
Social Worker in South Weymouth, MA
About Dr. Sylvia Isabel Mignon Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SYLVIA ISABEL MIGNON PHD (NPI 1447733225) is an individual social worker in South Weymouth, Massachusetts, licensed in Massachusetts (101463) and active in the NPI registry since September 2018. She is enrolled in Medicare PECOS and is a graduate of Other (1990).
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
Dr. Sylvia Isabel Mignon Phd 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 Sylvia Mignon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80202
- Reassigned Medicare billing, Massachusetts enrollment
- 94 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.
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 Sylvia Mignon's NPI number?
The NPI number for Sylvia Mignon is 1447733225. It was assigned to this individual provider in the NPPES registry on September 7, 2018.
Where is Sylvia Mignon located?
Sylvia Mignon practices at 28 Snowbird Ave, South Weymouth, MA 02190. The listed phone number is (617) 459-1725.
What is Sylvia Mignon's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Sylvia Mignon enrolled in Medicare?
Yes. Sylvia Mignon 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 Sylvia Mignon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sylvia Mignon reassigns Medicare benefits to Sondermind Provider Network LLC (Denver, CO). 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 Sylvia Mignon'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 Sylvia Mignon was last updated on September 7, 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.
# Dr. Sylvia Isabel Mignon, PHD · NPI 1447733225
Social Worker provider in South Weymouth, Massachusetts. Individual provider, active in the CMS NPPES registry since September 7, 2018.
## Identity
- **NPI:** 1447733225 (Entity type: Individual)
- **Enumerated:** September 7, 2018
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 101463 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 28 SNOWBIRD AVE, South Weymouth, MA 02190-3929
- **Phone:** (617) 459-1725
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Sondermind Provider Network LLC (NPI 1760854442, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** September 7, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1447733225) · Data from the CMS NPPES public registry.