ELIZABETH LASSUS
NPI 1164675724
Counselor - Mental Health in Valley Stream, NY
About Elizabeth Lassus NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ELIZABETH LASSUS (NPI 1164675724) is an individual mental health provider in Valley Stream, New York, licensed in New York (013612) and active in the NPI registry since October 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses 3
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
Elizabeth Lassus 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 Reassignment
Medicare enrollment records show Elizabeth Lassus reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Long Beach, NY 11561
- Reassigned Medicare billing, New York enrollment
- Medicare enrollment name: Invest In You Mental Health Counseling PC
- 5 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 Elizabeth Lassus's NPI number?
The NPI number for Elizabeth Lassus is 1164675724. It was assigned to this individual provider in the NPPES registry on October 28, 2008.
Where is Elizabeth Lassus located?
Elizabeth Lassus practices at 35 Teneyck Ave, Valley Stream, NY 11580. The listed phone number is (516) 641-8505.
What is Elizabeth Lassus's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Elizabeth Lassus enrolled in Medicare?
Yes. Elizabeth Lassus 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 organization bills Medicare for Elizabeth Lassus's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Lassus reassigns Medicare benefits to Invest In You Mental Health Counseling, P.C. (Long Beach, 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 Elizabeth Lassus'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 Elizabeth Lassus was last updated on March 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Elizabeth Lassus · NPI 1164675724
Mental Health provider in Valley Stream, New York. Individual provider, active in the CMS NPPES registry since October 28, 2008.
## Identity
- **NPI:** 1164675724 (Entity type: Individual)
- **Enumerated:** October 28, 2008
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 013612 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 35 TENEYCK AVE, Valley Stream, NY 11580-4015
- **Phone:** (516) 641-8505
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Invest In You Mental Health Counseling, P.C. (NPI 1407520885, Long Beach, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** March 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1164675724) · Data from the CMS NPPES public registry.