STEPHANIE M ANTONELLIS MS
NPI 1346714482
Counselor - Mental Health in New Haven, CT

Active since January 11, 2019PECOS Enrolled
458 GRAND AVE, NEW HAVEN, CT 06513(203) 752-1212 Get Directions Write a Review

NPPES record last updated: January 11, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Stephanie M Antonellis Ms NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHANIE M ANTONELLIS MS (NPI 1346714482) is an individual mental health provider in New Haven, Connecticut and active in the NPI registry since January 2019. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1346714482
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameSTEPHANIE M ANTONELLISCredential: MS
Location Address458 GRAND AVENew Haven, CT 06513-3856
Mailing Address838 Quarter Mile RdOrange, CT 06477-1534
Sole ProprietorNo
Enumeration DateJanuary 11, 2019
✔ NPI 1346714482 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
458 GRAND AVE, New Haven, CT 06513

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)

Stephanie M Antonellis Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Stephanie Antonellis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Federally Qualified Health Center (FQHC)
400-428 COLUMBUS AVENUE
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 468 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.

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.

Case Manager/Care Coordinator
458 GRAND AVE
NEW HAVEN, CT 06513
Social Worker (Clinical)
458 GRAND AVE
NEW HAVEN, CT 06513
Social Worker
458 GRAND AVE
NEW HAVEN, CT 06513
Counselor (Professional)
458 GRAND AVE
NEW HAVEN, CT 06513
Case Manager/Care Coordinator
458 GRAND AVE
NEW HAVEN, CT 06513
Counselor (Mental Health)
458 GRAND AVE
NEW HAVEN, CT 06513
Case Manager/Care Coordinator
458 GRAND AVE
NEW HAVEN, CT 06513
Counselor
458 GRAND AVE
NEW HAVEN, CT 06513

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 Stephanie Antonellis's NPI number?

The NPI number for Stephanie Antonellis is 1346714482. It was assigned to this individual provider in the NPPES registry on January 11, 2019.

Where is Stephanie Antonellis located?

Stephanie Antonellis practices at 458 Grand Ave, New Haven, CT 06513. The listed phone number is (203) 752-1212.

What is Stephanie Antonellis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Stephanie Antonellis enrolled in Medicare?

Yes. Stephanie Antonellis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Antonellis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Antonellis reassigns Medicare benefits to Cornell Scott Hill Health Corporation (New Haven, 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 Stephanie Antonellis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephanie Antonellis accept?

Health plans from Anthem Blue Cross and Blue Shield list Stephanie Antonellis 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 Stephanie Antonellis was last updated on January 11, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.