DR. DOUGLAS L IDELSON M.D.
NPI 1629004452
Pediatrics in New Haven, CT
About Dr. Douglas L Idelson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DOUGLAS L IDELSON M.D. (NPI 1629004452) is an individual pediatrics provider in New Haven, Connecticut, licensed in Connecticut (039521) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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. Douglas L Idelson M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Douglas Idelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New Haven, CT 06511
- Reassigned Medicare billing, Connecticut enrollment
- Also billed through NPI 1205822236 (Connecticut)
- 149 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 06511 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Douglas Idelson's NPI number?
The NPI number for Douglas Idelson is 1629004452. It was assigned to this individual provider in the NPPES registry on June 23, 2006.
Where is Douglas Idelson located?
Douglas Idelson practices at 55 Lock St, New Haven, CT 06511. The listed phone number is (203) 432-0206.
What is Douglas Idelson's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Douglas Idelson enrolled in Medicare?
Yes. Douglas Idelson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Douglas Idelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Idelson 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 Douglas Idelson'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 Douglas Idelson was last updated on October 4, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.