DR. KAREN REBECCA SIEGEL MD
NPI 1659868669
Psychiatry & Neurology - Child & Adolescent Psychiatry in New Haven, CT
About Dr. Karen Rebecca Siegel Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN REBECCA SIEGEL MD (NPI 1659868669) is an individual child & adolescent psychiatry provider in New Haven, Connecticut, licensed in Connecticut (67600) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Karen Rebecca Siegel Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Karen Siegel reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 clinicians in this Medicare group
New Canaan, CT 06840
- Reassigned Medicare billing, Connecticut enrollment
- 47 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.
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
NEW HAVEN, CT 06510
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 Karen Siegel's NPI number?
The NPI number for Karen Siegel is 1659868669. It was assigned to this individual provider in the NPPES registry on April 16, 2018.
Where is Karen Siegel located?
Karen Siegel practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.
What is Karen Siegel's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Karen Siegel enrolled in Medicare?
Yes. Karen Siegel is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Siegel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Siegel reassigns Medicare benefits to 2 organizations: Yale University (New Haven, CT) and Silver Hill Hospital, Inc (New Canaan, CT). Each 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 Karen Siegel'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 Karen Siegel was last updated on October 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.