MARGARET LILLIAN LIONSBEARD SULLIVAN LCSW
NPI 1306381660
Social Worker in Waterbury, CT
About Margaret Lillian Lionsbeard Sullivan Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET LILLIAN LIONSBEARD SULLIVAN LCSW (NPI 1306381660) is an individual social worker in Waterbury, Connecticut, licensed in Connecticut (10527) and active in the NPI registry since December 2016. She is enrolled in Medicare PECOS and is a graduate of Other (2016).
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
Margaret Lillian Lionsbeard Sullivan Lcsw 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 Margaret Lionsbeard Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ansonia, CT 06401
- Reassigned Medicare billing, Connecticut enrollment
- 83 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
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.
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.
WATERBURY, CT 06702
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 Margaret Lionsbeard Sullivan's NPI number?
The NPI number for Margaret Lionsbeard Sullivan is 1306381660. It was assigned to this individual provider in the NPPES registry on December 22, 2016.
Where is Margaret Lionsbeard Sullivan located?
Margaret Lionsbeard Sullivan practices at 141 E Main St, Waterbury, CT 06702. The listed phone number is (203) 574-9000.
What is Margaret Lionsbeard Sullivan's specialty?
The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.
Is Margaret Lionsbeard Sullivan enrolled in Medicare?
Yes. Margaret Lionsbeard Sullivan 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 Margaret Lionsbeard Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Lionsbeard Sullivan reassigns Medicare benefits to Bhcare, Inc. (Ansonia, CT). 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 Margaret Lionsbeard Sullivan'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 Margaret Lionsbeard Sullivan was last updated on January 21, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Margaret Lillian Lionsbeard Sullivan, LCSW · NPI 1306381660
Social Worker provider in Waterbury, Connecticut. Individual provider, active in the CMS NPPES registry since December 22, 2016.
## Identity
- **NPI:** 1306381660 (Entity type: Individual)
- **Enumerated:** December 22, 2016
- **Primary specialty:** Social Worker · taxonomy 104100000X
- **State license:** 10527 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 141 E MAIN ST, Waterbury, CT 06702-2310
- **Phone:** (203) 574-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Bhcare, Inc. (NPI 1306042700, Ansonia, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** January 21, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1306381660) · Data from the CMS NPPES public registry.