DIANA COOK LCSW
NPI 1194471326
Social Worker - Clinical in Middletown, NY
About Diana Cook Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DIANA COOK LCSW (NPI 1194471326) is an individual clinical provider in Middletown, New York, licensed in New York (097125-01) and active in the NPI registry since February 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2014).
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
Diana Cook Lcsw 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 Diana Cook reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Middletown, NY 10940
- Reassigned Medicare billing, New York enrollment
- 281 clinicians in this Medicare group
Port Jervis, NY 12771
- Reassigned Medicare billing, New York enrollment
- 40 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10940 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MIDDLETOWN, NY 10940
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 Diana Cook's NPI number?
The NPI number for Diana Cook is 1194471326. It was assigned to this individual provider in the NPPES registry on February 25, 2022.
Where is Diana Cook located?
Diana Cook practices at 419 E Main St, Middletown, NY 10940. The listed phone number is (845) 342-4774.
What is Diana Cook's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Diana Cook enrolled in Medicare?
Yes. Diana Cook 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 Diana Cook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Diana Cook reassigns Medicare benefits to 2 organizations: Middletown Medical PC (Middletown, NY) and County Of Orange (Port Jervis, 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 Diana Cook'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 Diana Cook was last updated on January 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Diana Cook, LCSW · NPI 1194471326
Clinical provider in Middletown, New York. Individual provider, active in the CMS NPPES registry since February 25, 2022.
## Identity
- **NPI:** 1194471326 (Entity type: Individual)
- **Enumerated:** February 25, 2022
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** 097125-01 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 419 E MAIN ST, Middletown, NY 10940-2536
- **Phone:** (845) 342-4774
## 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): Middletown Medical PC (NPI 1902855828, Middletown, NY); County Of Orange (NPI 1740227214, Port Jervis, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** January 15, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1194471326) · Data from the CMS NPPES public registry.