WILLIAM M DELANEY MD
NPI 1942387634
Internal Medicine in Danbury, CT
About William M Delaney Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM M DELANEY MD (NPI 1942387634) is an individual internal medicine provider in Danbury, Connecticut, licensed in Connecticut (26131) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (1982).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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)
William M Delaney Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Delaney 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
- 93 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 06810 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
DANBURY, CT 06810
DANBURY, CT 06810
DANBURY, CT 06810
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 Delaney's NPI number?
The NPI number for William Delaney is 1942387634. It was assigned to this individual provider in the NPPES registry on November 1, 2006.
Where is William Delaney located?
William Delaney practices at 70 Main St, Danbury, CT 06810. The listed phone number is (203) 791-5030.
What is William Delaney's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is William Delaney enrolled in Medicare?
Yes. William Delaney is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Delaney's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Delaney reassigns Medicare benefits to Connecticut Institute For Communities 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 William Delaney's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Delaney accept?
Health plans from Anthem Blue Cross and Blue Shield list William Delaney 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 William Delaney 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.