JOHN FRANCIS CIANNELLA M.D.
NPI 1689972085
Pediatrics - Neonatal-Perinatal Medicine in Stamford, CT
About John Francis Ciannella M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN FRANCIS CIANNELLA M.D. (NPI 1689972085) is an individual neonatal-perinatal medicine provider in Stamford, Connecticut, licensed in Connecticut (49675) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
John Francis Ciannella M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show John Ciannella reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stamford, CT 06907
- Reassigned Medicare billing, Connecticut enrollment
- 496 clinicians in this Medicare group
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.
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.
STAMFORD, CT 06904
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 John Ciannella's NPI number?
The NPI number for John Ciannella is 1689972085. It was assigned to this individual provider in the NPPES registry on March 9, 2011.
Where is John Ciannella located?
John Ciannella practices at One Hospital Plaza, Stamford, CT 06904. The listed phone number is (203) 276-7083.
What is John Ciannella's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is John Ciannella enrolled in Medicare?
Yes. John Ciannella is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Ciannella's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Ciannella reassigns Medicare benefits to 2 organizations: Stamford Health Medical Group Inc (Stamford, CT) and Yale University (New Haven, 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 John Ciannella's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Ciannella accept?
Health plans from Anthem Blue Cross and Blue Shield list John Ciannella 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 John Ciannella was last updated on April 13, 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.