Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Calm Grounding Psychological Services Pllc

Q: What is the NPI number for Calm Grounding Psychological Services Pllc?

The NPI for Calm Grounding Psychological Services Pllc is 1639015951, a Type 2 (organization) record in the CMS NPPES registry.

Clinical Psychologist in Arlington Heights, IL · enumerated 2026 · authorized official Rajkumar Periasamy, Founder/Owner.

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

National Provider Identifier

1639015951

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Registry record

Entity type Organization (Type 2)

Legal business name Calm Grounding Psychological Services Pllc

Practice address 416 E Mckone Ct, Arlington Heights, IL, 60005

Phone (614) 736-1415

Enumeration date Apr 28, 2026

Last updated in NPPES Apr 28, 2026

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Rajkumar Periasamy

Title Founder/Owner

Phone (614) 736-1415

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

Who is the authorized official for Calm Grounding Psychological Services Pllc?

NPPES lists Rajkumar Periasamy (Founder/Owner) as the authorized official for this organization.

What is the NPI number for Calm Grounding Psychological Services Pllc?

The NPI for Calm Grounding Psychological Services Pllc is 1639015951, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-28.