DR. WILLIAM EUGENE HELLENBRAND M.D.
NPI 1417936022
Pediatrics - Pediatric Cardiology in New Haven, CT
About Dr. William Eugene Hellenbrand M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM EUGENE HELLENBRAND M.D. (NPI 1417936022) is an individual pediatric cardiology provider in New Haven, Connecticut, licensed in Connecticut (015288) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. William Eugene Hellenbrand M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Hellenbrand reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06519
- Reassigned Medicare billing, Connecticut enrollment
- 3,728 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.
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 William Hellenbrand's NPI number?
The NPI number for William Hellenbrand is 1417936022. It was assigned to this individual provider in the NPPES registry on January 12, 2006.
Where is William Hellenbrand located?
William Hellenbrand practices at 1 Park St., New Haven, CT 06520. The listed phone number is (203) 785-2022.
What is William Hellenbrand's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is William Hellenbrand enrolled in Medicare?
Yes. William Hellenbrand is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Hellenbrand's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Hellenbrand reassigns Medicare benefits to Yale University (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 William Hellenbrand'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 William Hellenbrand was last updated on November 17, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.