HORIZON TREATMENT CENTER PLLC
NPI 1225853831
Substance Abuse Rehabilitation Facility in Worcester, MA
About Horizon Treatment Center Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HORIZON TREATMENT CENTER PLLC (NPI 1225853831) is a healthcare organization registered as a substance abuse rehabilitation facility in Worcester, Massachusetts and active in the NPI registry since November 2024. The organization lists Kal Kalava, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 3
Other Names 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)
Horizon Treatment Center Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
4Medicare enrollment records show 4 clinicians reassign Medicare billing to Horizon Treatment Center PLLC, which bills Medicare for the services they deliver. They are listed nearest first.
Clinicians, nearest first (4)
Gardner, MA 01440
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 Horizon Treatment Center PLLC's NPI number?
The NPI number for Horizon Treatment Center PLLC is 1225853831. It was assigned to this organization in the NPPES registry on November 19, 2024.
Where is Horizon Treatment Center PLLC located?
Horizon Treatment Center PLLC is located at 116 Belmont St Rm 31, Worcester, MA 01605. The listed phone number is (508) 304-1298.
What is Horizon Treatment Center PLLC's specialty?
The primary specialty registered for this NPI is Substance Abuse Rehabilitation Facility with taxonomy code 324500000X.
Is Horizon Treatment Center PLLC enrolled in Medicare?
Yes. Horizon Treatment Center PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Horizon Treatment Center PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians reassign their Medicare billing to Horizon Treatment Center PLLC, in Anesthesiology, Nurse Practitioner and Pain Management. 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 Horizon Treatment Center PLLC was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Horizon Treatment Center Pllc · NPI 1225853831
Substance Abuse Rehabilitation Facility organization in Worcester, Massachusetts. Organization record, active in the CMS NPPES registry since November 19, 2024.
## Identity
- **NPI:** 1225853831 (Entity type: Organization)
- **Enumerated:** November 19, 2024
- **Primary specialty:** Substance Abuse Rehabilitation Facility · taxonomy 324500000X
- **Also known as:** Horizon Treatment Center PLLC (Doing Business As)
- **Organization subpart:** No
- **Authorized official:** Kal Kalava, OWNER
## Practice location
- **Address:** 116 BELMONT ST RM 31, Worcester, MA 01605-2964
- **Phone:** (508) 304-1298
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 4 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (2), Anesthesiology (1), Pain Management (1) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 30, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1225853831) · Data from the CMS NPPES public registry.