MS. ALIX WALCZUK MS
NPI 1669994463
Counselor - Mental Health in Deer Park, NY
About Ms. Alix Walczuk Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ALIX WALCZUK MS (NPI 1669994463) is an individual mental health provider in Deer Park, New York, licensed in New York (012671) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Alix Walczuk Ms is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alix Walczuk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- 33 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.
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 Alix Walczuk's NPI number?
The NPI number for Alix Walczuk is 1669994463. It was assigned to this individual provider in the NPPES registry on July 13, 2017.
Where is Alix Walczuk located?
Alix Walczuk practices at 329 W 20th St, Deer Park, NY 11729. The listed phone number is (516) 398-4122.
What is Alix Walczuk's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Alix Walczuk enrolled in Medicare?
Yes. Alix Walczuk is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alix Walczuk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alix Walczuk reassigns Medicare benefits to Manhattan Mental Health Counseling, LLC (New York, 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 Alix Walczuk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alix Walczuk accept?
Health plans from Oscar Health list Alix Walczuk as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Alix Walczuk was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.
# Ms. Alix Walczuk, MS · NPI 1669994463
Mental Health provider in Deer Park, New York. Individual provider, active in the CMS NPPES registry since July 13, 2017.
## Identity
- **NPI:** 1669994463 (Entity type: Individual)
- **Enumerated:** July 13, 2017
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 012671 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 329 W 20TH ST, Deer Park, NY 11729-6317
- **Phone:** (516) 398-4122
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Manhattan Mental Health Counseling, LLC (NPI 1225429640, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** October 24, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1669994463) · Data from the CMS NPPES public registry.