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Dr Ovanessian Treatment Center LLC

Addiction Psychiatry Physician in Newtown, CT · enumerated 2010 · authorized official Simon Ovanessain, Physician/Surgeon.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1164749057

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Registry record

Entity type Organization (Type 2)
Legal business name Dr Ovanessian Treatment Center LLC
Practice address 20 Church Hill Rd, Newtown, CT, 06470
Phone (203) 304-9599
Enumeration date May 1, 2010
Last updated in NPPES Apr 4, 2013

Taxonomy & classification

2084P0802X Addiction Psychiatry Physician Allopathic & Osteopathic Physicians · License 042079 (CT) Primary
305R00000X Preferred Provider Organization Managed Care Organizations · License 042079 (CT) Secondary

Authorized official

Name Simon Ovanessain
Title Physician/Surgeon
Phone (845) 548-6073

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Dr Ovanessian Treatment Center LLC?
NPPES lists Simon Ovanessain (Physician/Surgeon) as the authorized official for this organization.
What is the NPI number for Dr Ovanessian Treatment Center LLC?
The NPI for Dr Ovanessian Treatment Center LLC is 1164749057, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-04.