ALYSSA A ANDERSON APRN
NPI 1336421171
Nurse Practitioner - Family in Branford, CT
About Alyssa A Anderson Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALYSSA A ANDERSON APRN (NPI 1336421171) is an individual family provider in Branford, Connecticut, licensed in Connecticut (004810) and active in the NPI registry since September 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alyssa A Anderson Aprn is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alyssa Anderson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Milldale, CT 06467
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: John E Rivera Jr MD LLC
- 3 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 06405 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 5
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 Alyssa Anderson's NPI number?
The NPI number for Alyssa Anderson is 1336421171. It was assigned to this individual provider in the NPPES registry on September 19, 2011.
Where is Alyssa Anderson located?
Alyssa Anderson practices at 251 W Main St, Branford, CT 06405. The listed phone number is (203) 481-0077.
What is Alyssa Anderson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Alyssa Anderson enrolled in Medicare?
Yes. Alyssa Anderson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alyssa Anderson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alyssa Anderson reassigns Medicare benefits to John E. Rivera Jr., M.D., LLC (Milldale, 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 Alyssa Anderson'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 Alyssa Anderson was last updated on September 6, 2012. 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.
# Alyssa A Anderson, APRN · NPI 1336421171
Family physician in Branford, Connecticut. Individual provider, active in the CMS NPPES registry since September 19, 2011.
## Identity
- **NPI:** 1336421171 (Entity type: Individual)
- **Enumerated:** September 19, 2011
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 004810 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 251 W MAIN ST, Branford, CT 06405-4047
- **Phone:** (203) 481-0077
## 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:** John E. Rivera Jr., M.D., LLC (NPI 1902146996, Milldale, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 6, 2012
---
Source: [NPI Profile](https://npiprofile.com/npi/1336421171) · Data from the CMS NPPES public registry.