Sylvia Isabel Mignon, PHD
Social Worker · South Weymouth, MA
Sylvia Isabel Mignon, PHD is a social worker with a practice address in South Weymouth, Massachusetts, and NPI 1447733225, issued on Sep 7, 2018. Check the license (Massachusetts 101463, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sylvia Isabel Mignon
- Credential
- PHD
- Primary taxonomy
- Social Worker 104100000X
- License number
- 101463 MA
Self-reported in NPPES; status is on the state search - Practice location
- 28 Snowbird Ave, South Weymouth, MA 02190
- Phone
- (617) 459-1725
- Enumerated
- Sep 7, 2018
- Record last updated
- Sep 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20230811001750); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest social worker records → All 5,517 in Massachusetts → Look up another NPI →
Verify Sylvia Isabel Mignon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 101463Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sondermind Provider Network LLCBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sylvia Isabel Mignon among 5,517 social worker records in Massachusetts
Sylvia Isabel Mignon, PHD is one of 5,517 social worker records with a practice address in Massachusetts. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 49% of them.
- NPI issued2018 · 49% of these records are older, 41% newer
- In a Medicare fileYes · 5% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated1990 · median 2012 among the 435 with a school on file
- Record last updated2018 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 104100000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Social Worker providers in Massachusetts
There are 5,517 social worker records in Massachusetts.
All 5,517 in Massachusetts → Every provider in South Weymouth → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Amy Belanger, MSWWeymouth, MA 021901487973566
- Briana BizokasWeymouth, MA 021901740701077
- Maryanne ChowSouth Weymouth, MA 021901518394493
- Shanece EdwardsWeymouth, MA 021901457831091
- Julie Estey, MSWWeymouth, MA 021901164735213
- Amanda Freehoff, BSWWeymouth, MA 021901033511639
- Holly HughesWeymouth, MA 021901144741919
- Cordelia LovettS Weymouth, MA 021901699253567
Common questions
What is Sylvia Isabel Mignon, PHD's NPI number?
Sylvia Isabel Mignon, PHD's National Provider Identifier (NPI) is 1447733225, issued on Sep 7, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sylvia Isabel Mignon, PHD located?
The NPPES record lists a practice address at 28 Snowbird Ave, South Weymouth, MA, 02190. Phone: (617) 459-1725. Providers update this record themselves, so call before visiting.
How can I verify Sylvia Isabel Mignon, PHD's license?
NPPES lists Massachusetts license number 101463, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.