MS. LESLIE ANN WARREN RN
NPI 1861977704
Counselor - Mental Health in Queensbury, NY
About Ms. Leslie Ann Warren Rn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. LESLIE ANN WARREN RN (NPI 1861977704) is an individual mental health provider in Queensbury, New York, licensed in New York (011245) and active in the NPI registry since September 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2001).
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 and accepts Medicare assignment
Ms. Leslie Ann Warren Rn 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 Reassignments
2Medicare enrollment records show Leslie Warren reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brooklyn, NY 11201
- Reassigned Medicare billing, New York enrollment
- 457 clinicians in this Medicare group
Brooklyn, NY 11235
- Reassigned Medicare billing, New York enrollment
- 436 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 Leslie Warren's NPI number?
The NPI number for Leslie Warren is 1861977704. It was assigned to this individual provider in the NPPES registry on September 26, 2018.
Where is Leslie Warren located?
Leslie Warren practices at 24 Cedarwood Drive, Queensbury, NY 12804. The listed phone number is (347) 277-5966.
What is Leslie Warren's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Leslie Warren enrolled in Medicare?
Yes. Leslie Warren 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 organizations bill Medicare for Leslie Warren's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leslie Warren reassigns Medicare benefits to 2 organizations: Che Senior Psychological Services, PC (Brooklyn, NY) and Knapp Street Psychiatry, PC (Brooklyn, 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 Leslie Warren'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 Leslie Warren was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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. Leslie Ann Warren, RN · NPI 1861977704
Mental Health provider in Queensbury, New York. Individual provider, active in the CMS NPPES registry since September 26, 2018.
## Identity
- **NPI:** 1861977704 (Entity type: Individual)
- **Enumerated:** September 26, 2018
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 011245 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 24 CEDARWOOD DRIVE, Queensbury, NY 12804
- **Phone:** (347) 277-5966
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Che Senior Psychological Services, PC (NPI 1023078219, Brooklyn, NY); Knapp Street Psychiatry, PC (NPI 1043248776, Brooklyn, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** July 31, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1861977704) · Data from the CMS NPPES public registry.