MRS. AMY BETH SIENKO APRN
NPI 1275722696
Nurse Practitioner - Pediatrics in New Haven, CT
About Mrs. Amy Beth Sienko Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. AMY BETH SIENKO APRN (NPI 1275722696) is an individual pediatrics provider in New Haven, Connecticut, licensed in Connecticut (003617) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and maintains a secondary practice location in Hartford.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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)
Mrs. Amy Beth Sienko Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Amy Sienko reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Hartford, CT 06106
- Reassigned Medicare billing, Connecticut enrollment
- 601 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.
NEW HAVEN, CT 06511
NEW HAVEN, CT 06511
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 Amy Sienko's NPI number?
The NPI number for Amy Sienko is 1275722696. It was assigned to this individual provider in the NPPES registry on October 22, 2007.
Where is Amy Sienko located?
Amy Sienko practices at 1450 Chapel St, New Haven, CT 06511. The listed phone number is (203) 789-3661.
What is Amy Sienko's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.
Is Amy Sienko enrolled in Medicare?
Yes. Amy Sienko is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Amy Sienko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amy Sienko reassigns Medicare benefits to Connecticut Children's Specialty Group, Inc. (Hartford, 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 Amy Sienko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Amy Sienko accept?
Health plans from Anthem Blue Cross and Blue Shield list Amy Sienko 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 Amy Sienko was last updated on September 23, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mrs. Amy Beth Sienko, APRN · NPI 1275722696
Pediatrics physician in New Haven, Connecticut. Individual provider, active in the CMS NPPES registry since October 22, 2007.
## Identity
- **NPI:** 1275722696 (Entity type: Individual)
- **Enumerated:** October 22, 2007
- **Primary specialty:** Nurse Practitioner - Pediatrics · taxonomy 363LP0200X
- **State license:** 003617 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 1450 CHAPEL ST, New Haven, CT 06511-4405
- **Phone:** (203) 789-3661
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Connecticut Children's Specialty Group, Inc. (NPI 1669448882, Hartford, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 23, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1275722696) · Data from the CMS NPPES public registry.