KAREN BERGSTEIN CNM, WHNP
NPI 1184614794
Advanced Practice Midwife in Harrison, NY
About Karen Bergstein Cnm, Whnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN BERGSTEIN CNM, WHNP (NPI 1184614794) is an individual advanced practice midwife in Harrison, New York, licensed in New York (F000553) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 14
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Karen Bergstein Cnm, Whnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Karen Bergstein reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nyack, NY 10960
- Reassigned Medicare billing, New York enrollment
- 119 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 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 10528 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 18
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 Karen Bergstein's NPI number?
The NPI number for Karen Bergstein is 1184614794. It was assigned to this individual provider in the NPPES registry on October 25, 2005.
Where is Karen Bergstein located?
Karen Bergstein practices at 450 Mamaroneck Ave, Harrison, NY 10528. The listed phone number is (914) 421-1500.
What is Karen Bergstein's specialty?
The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.
Is Karen Bergstein enrolled in Medicare?
Yes. Karen Bergstein is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Bergstein's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Bergstein reassigns Medicare benefits to 3 organizations: Montefiore Nyack Hospital (Nyack, NY), North Shore-Lij Medical PC (Great Neck, NY) and Trustees Of Columbia University In The City Of New York (New York, 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 Karen Bergstein'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 Bergstein was last updated on February 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.