MR. JOHN JOSEPH SULLIVAN MSW
NPI 1194825331
Social Worker - Clinical in West Haven, CT
About Mr. John Joseph Sullivan Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. JOHN JOSEPH SULLIVAN MSW (NPI 1194825331) is an individual clinical provider in West Haven, Connecticut and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. John Joseph Sullivan Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Sullivan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Danbury, CT 06810
- Reassigned Medicare billing, Connecticut enrollment
- 818 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06516 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WEST HAVEN, CT 06516
WEST HAVEN, CT 06516
WEST HAVEN, CT 06516
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 John Sullivan's NPI number?
The NPI number for John Sullivan is 1194825331. It was assigned to this individual provider in the NPPES registry on September 25, 2006.
Where is John Sullivan located?
John Sullivan practices at 114 Boston Post Rd, West Haven, CT 06516. The listed phone number is (203) 931-4032.
What is John Sullivan's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is John Sullivan enrolled in Medicare?
Yes. John Sullivan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Sullivan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Sullivan reassigns Medicare benefits to Nuvance Health Medical Practice Ct, Inc. (Danbury, 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 John Sullivan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Sullivan accept?
Health plans from Anthem Blue Cross and Blue Shield list John Sullivan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Sullivan was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Mr. John Joseph Sullivan, MSW · NPI 1194825331
Clinical provider in West Haven, Connecticut. Individual provider, active in the CMS NPPES registry since September 25, 2006.
## Identity
- **NPI:** 1194825331 (Entity type: Individual)
- **Enumerated:** September 25, 2006
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 114 BOSTON POST RD, West Haven, CT 06516-2043
- **Phone:** (203) 931-4032 · **Fax:** (203) 931-4068
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Nuvance Health Medical Practice Ct, Inc. (NPI 1407898117, Danbury, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1194825331) · Data from the CMS NPPES public registry.