COOK BEHAVIORAL HEALTH LLC
NPI 1902746340
Social Worker - Clinical in Hamden, CT
About Cook Behavioral Health Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
COOK BEHAVIORAL HEALTH LLC (NPI 1902746340) is a healthcare organization registered as a clinical in Hamden, Connecticut and active in the NPI registry since March 2026. The organization lists Sommer Cook, Providing Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Cook Behavioral Health Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Cook Behavioral Health LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Cook Behavioral Health LLC's NPI number?
The NPI number for Cook Behavioral Health LLC is 1902746340. It was assigned to this organization in the NPPES registry on March 28, 2026.
Where is Cook Behavioral Health LLC located?
Cook Behavioral Health LLC is located at 2661 Whitney Ave, Hamden, CT 06518. The listed phone number is (203) 903-1855.
What is Cook Behavioral Health LLC's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Cook Behavioral Health LLC enrolled in Medicare?
Yes. Cook Behavioral Health LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Cook Behavioral Health LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Cook Behavioral Health LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Cook Behavioral Health LLC was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Cook Behavioral Health Llc · NPI 1902746340
Clinical organization in Hamden, Connecticut. Organization record, active in the CMS NPPES registry since March 28, 2026.
## Identity
- **NPI:** 1902746340 (Entity type: Organization)
- **Enumerated:** March 28, 2026
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **Organization subpart:** No
- **Authorized official:** Sommer Cook, PROVIDING OWNER
## Practice location
- **Address:** 2661 WHITNEY AVE, Hamden, CT 06518-2900
- **Phone:** (203) 903-1855
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Social Worker) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902746340) · Data from the CMS NPPES public registry.