The Leon Institute

Primary specialty

Community/Behavioral Health AgencyTaxonomy code 251S00000X

Legal business name

THE LEON INSTITUTE

Practice address

2900 S Harbor Blvd Ste 100
Santa Ana, CA 92704-6418

Phone

(949) 919-0826

NPI assigned

Nov 7, 2025

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Paul Michael Leon, PHN

Title

Chief Executive Officer

Phone

(949) 919-0826

Specialties & licenses 1

Addresses

Tax ID family

The Leon Institute2 organizations share this tax ID, including this one

Other organizations with this tax ID 1

Organizations that report the same tax identification number in the National Provider Directory.

• The Leon Institute

  • Clinical Social Worker
  • Santa Ana, CA
  • NPI 1598689218
  NPD tax ID

Subparts reporting this organization as parent 1

Organizations that report themselves as subparts in NPPES and name this organization, in the same state, as their parent.

• The Leon Institute

  • Clinical Social Worker
  • Santa Ana, CA
  • NPI 1598689218
  NPPES parent name

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Clayton Long Chieu Chau, MD, PHD

  • Psychiatry Physician
  • Brea, CA
  • NPI 1104914449
  NPD
• Allison Helget Wolinsky

  • Clinical Social Worker
  • Santa Ana, CA
  • NPI 1134615008
  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1762473600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1762473600000",
    "number": "1629948393",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2900 S HARBOR BLVD STE 100",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927046418",
            "telephone_number": "949-919-0826"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2900 S HARBOR BLVD STE 100",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927046418",
            "telephone_number": "949-919-0826"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "THE LEON INSTITUTE",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-11-07",
        "last_updated": "2025-11-07",
        "certification_date": "2025-11-07",
        "status": "A",
        "authorized_official_last_name": "LEON",
        "authorized_official_first_name": "PAUL",
        "authorized_official_middle_name": "MICHAEL",
        "authorized_official_title_or_position": "CHIEF EXECUTIVE OFFICER",
        "authorized_official_telephone_number": "949-919-0826",
        "authorized_official_credential": "PHN"
    },
    "taxonomies": [
        {
            "code": "251S00000X",
            "taxonomy_group": "",
            "desc": "Community/Behavioral Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Community/Behavioral Health Agency in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Community/Behavioral Health Agency in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.