Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Advanced Therapy Services LLC

Q: What type of organization is Advanced Therapy Services LLC?

Advanced Therapy Services LLC is registered in NPPES as a Professional Counselor (its primary provider taxonomy).

Professional Counselor in Amston, CT · enumerated 2022 · authorized official Rosalie Simichak, Lpc.

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

National Provider Identifier

1144956442

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Registry record

Entity type Organization (Type 2)

Legal business name Advanced Therapy Services LLC

Practice address 70 Grayville Rd, Amston, CT, 06231

Phone (860) 707-6729

Enumeration date Jul 28, 2022

Last updated in NPPES Jul 28, 2022

Taxonomy & classification

101YP2500X Professional Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Rosalie Simichak

Title Lpc

Phone (860) 707-6729

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Advanced Therapy Services LLC?

Advanced Therapy Services LLC is registered in NPPES as a Professional Counselor (its primary provider taxonomy).

Providers at this address

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Rosalie Simichak Professional Counselor · Amston, CT NPI 1740864453

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-28.