MARY K MADSEN FNP
NPI 1346364742
Nurse Practitioner - Family in New York, NY
About Mary K Madsen Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY K MADSEN FNP (NPI 1346364742) is an individual family provider in New York, New York, licensed in New York (332106) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary K Madsen Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Mary Madsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10001
- Reassigned Medicare billing, New York enrollment
- 163 clinicians in this Medicare group
Rockville Centre, NY 11570
- Reassigned Medicare billing, New York enrollment
- 49 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10012 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 8
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 Mary Madsen's NPI number?
The NPI number for Mary Madsen is 1346364742. It was assigned to this individual provider in the NPPES registry on March 19, 2007.
Where is Mary Madsen located?
Mary Madsen practices at 298 Mulberry St, New York, NY 10012. The listed phone number is (664) 652-2537.
What is Mary Madsen's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Mary Madsen enrolled in Medicare?
Yes. Mary Madsen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mary Madsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Madsen reassigns Medicare benefits to 2 organizations: Premier Healthcare, Inc. (New York, NY) and Mission Medical Care PC (Rockville Centre, NY). 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 Mary 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 Mary Madsen was last updated on January 21, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mary K Madsen, FNP · NPI 1346364742
Family physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 19, 2007.
## Identity
- **NPI:** 1346364742 (Entity type: Individual)
- **Enumerated:** March 19, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 332106 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 298 MULBERRY ST, New York, NY 10012-3331
- **Phone:** (664) 652-2537
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Premier Healthcare, Inc. (NPI 1831330182, New York, NY); Mission Medical Care PC (NPI 1750898565, Rockville Centre, NY) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** January 21, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1346364742) · Data from the CMS NPPES public registry.