Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Arlene Mancilla Cook, RMHCI

Mental Health Counselor in Melbourne, FL · enumerated 2023 · practices at Coastal Wellness and Life Coaching Center LLC.

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

National Provider Identifier

1538866439

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Registry record

Entity type Individual (Type 1)

Name Mrs. Arlene Mancilla Cook

Credential RMHCI

Sex Female

Practice address Melbourne, FL, 32940

Phone (321) 757-4015

Enumeration date Feb 10, 2023

Last updated in NPPES Feb 10, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License IMH23596 (FL) Primary

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

Is NPI 1538866439 active?

Yes, as of the latest NPPES snapshot, NPI 1538866439 is active (record last updated 2023-02-10).

How do I verify Arlene Cook's NPI record?

Cross-check NPI 1538866439 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-10.