Margaret Lillian Lionsbeard Sullivan, LCSW
Social Worker · Waterbury, CT
Margaret Lillian Lionsbeard Sullivan, LCSW is a social worker with a practice address in Waterbury, Connecticut, and NPI 1306381660, issued on Dec 22, 2016. Check the license (Connecticut 10527, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Lillian Lionsbeard Sullivan
- Credential
- LCSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 10527 CT
Self-reported in NPPES; status is on the state search - Practice location
- 141 E Main St, Waterbury, CT 06702
- Phone
- (203) 574-9000
- Enumerated
- Dec 22, 2016
- Record last updated
- Jan 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200302002036); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest social worker records → All 2,124 in Connecticut → Look up another NPI →
Also registered at 141 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Vittoria Albanese, BACommunity Health Worker1740612654
- Bernice AldarondoCommunity Health Worker1194206037
Verify Margaret Lillian Lionsbeard Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 10527Check 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
- Bhcare, Inc.Ansonia, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Lillian Lionsbeard Sullivan among 2,124 social worker records in Connecticut
Margaret Lillian Lionsbeard Sullivan, LCSW is one of 2,124 social worker records with a practice address in Connecticut. 7% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 30% of them.
- NPI issued2016 · 30% of these records are older, 68% newer
- In a Medicare fileYes · 7% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated2016 · median 2017 among the 221 with a school on file
- Record last updated2020 · 43% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
195 social worker records list a practice address in Waterbury
They are 195 of the 3,148 NPPES records with a practice address in Waterbury, and 2,124 social worker records in Connecticut.
All 2,124 in Connecticut → Every provider in Waterbury → Social Worker nationwide →
The 8 social worker records with the nearest ZIP codes
- Marion Alamo, MSWWaterbury, CT 067021407092307
- Margarita AlvarezWaterbury, CT 067021104967397
- Evelina BulaWaterbury, CT 067021346490455
- Nerina CarrollWaterbury, CT 067021972698801
- Sonya Cloud, LMSW,MSW,BAWaterbury, CT 067021487960795
- Vania Estes, MSW,LMSWWaterbury, CT 067021619299484
- Paget HaylonWaterbury, CT 067021518115666
- Dahivsa MercadoWaterbury, CT 067021760523039
Common questions
What is Margaret Lillian Lionsbeard Sullivan, LCSW's NPI number?
Margaret Lillian Lionsbeard Sullivan, LCSW's National Provider Identifier (NPI) is 1306381660, issued on Dec 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Lillian Lionsbeard Sullivan, LCSW located?
The NPPES record lists a practice address at 141 E Main St, Waterbury, CT, 06702. Phone: (203) 574-9000. Providers update this record themselves, so call before visiting.
How can I verify Margaret Lillian Lionsbeard Sullivan, LCSW's license?
NPPES lists Connecticut license number 10527, as entered by the provider. Search the Connecticut 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.