EILEEN M MADSEN RNP
NPI 1407937824
Nurse Practitioner - Family in Stamford, CT
About Eileen M Madsen Rnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EILEEN M MADSEN RNP (NPI 1407937824) is an individual family provider in Stamford, Connecticut, licensed in Connecticut (001819) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1998).
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 and accepts Medicare assignment
Eileen M Madsen Rnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Eileen Madsen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- 268 clinicians in this Medicare group
Greenwich, CT 06830
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Northeast Medical Group Inc
- 1,824 clinicians in this Medicare group
Stamford, CT 06907
- Reassigned Medicare billing, Connecticut enrollment
- 496 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 06902 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STAMFORD, CT 06902
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 Eileen Madsen's NPI number?
The NPI number for Eileen Madsen is 1407937824. It was assigned to this individual provider in the NPPES registry on October 19, 2006.
Where is Eileen Madsen located?
Eileen Madsen practices at 2015 W Main St, Stamford, CT 06902. The listed phone number is (203) 863-3671.
What is Eileen Madsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Eileen Madsen enrolled in Medicare?
Yes. Eileen Madsen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Eileen Madsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Eileen Madsen reassigns Medicare benefits to 3 organizations: Greenwich Hospital (Greenwich, CT), Mill Hill Medical Consultants Inc (Greenwich, CT) and Stamford Health Medical Group Inc (Stamford, 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 Eileen Madsen'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 Eileen Madsen was last updated on August 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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.
# Eileen M Madsen, RNP · NPI 1407937824
Family physician in Stamford, Connecticut. Individual provider, active in the CMS NPPES registry since October 19, 2006.
## Identity
- **NPI:** 1407937824 (Entity type: Individual)
- **Enumerated:** October 19, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 001819 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 2015 W MAIN ST, Stamford, CT 06902-4536
- **Phone:** (203) 863-3671 · **Fax:** (203) 863-4758
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Greenwich Hospital (NPI 1609846088, Greenwich, CT); Mill Hill Medical Consultants Inc (NPI 1245249549, Greenwich, CT); Stamford Health Medical Group Inc (NPI 1154633980, Stamford, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** August 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1407937824) · Data from the CMS NPPES public registry.