MRS. KAREN E. NIEMINSKI FNP
NPI 1396764114
Nurse Practitioner - Family in Montrose, NY
About Mrs. Karen E. Nieminski Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KAREN E. NIEMINSKI FNP (NPI 1396764114) is an individual family provider in Montrose, New York, licensed in New York (F331240-1) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1995).
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)
Mrs. Karen E. Nieminski Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karen Nieminski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
West Haverstraw, NY 10993
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: State Of New York Comptrollers Office
- 53 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 10548 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.
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 Karen Nieminski's NPI number?
The NPI number for Karen Nieminski is 1396764114. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Karen Nieminski located?
Karen Nieminski practices at 2166 Albany Post Rd, Montrose, NY 10548. The listed phone number is (914) 737-4400.
What is Karen Nieminski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Nieminski enrolled in Medicare?
Yes. Karen Nieminski is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karen Nieminski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Nieminski reassigns Medicare benefits to State Of New York (West Haverstraw, NY). 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 Karen Nieminski'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 Karen Nieminski was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Karen E. Nieminski, FNP · NPI 1396764114
Family physician in Montrose, New York. Individual provider, active in the CMS NPPES registry since July 19, 2006.
## Identity
- **NPI:** 1396764114 (Entity type: Individual)
- **Enumerated:** July 19, 2006
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** F331240-1 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2166 ALBANY POST RD, Montrose, NY 10548-1039
- **Phone:** (914) 737-4400
## 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:** State Of New York (NPI 1508987348, West Haverstraw, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1396764114) · Data from the CMS NPPES public registry.