Leslie Sloniger, M.S., CCC-SLP

Primary specialty

Speech-Language PathologistTaxonomy code 235Z00000X

License

28801 Issued in CA

Practice address

16250 Hickory St
Fountain Valley, CA 92708-1404

Phone

(714) 842-0626

NPI assigned

May 4, 2026

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Science

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

{
    "created_epoch": "1777852800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777852800000",
    "number": "1386571560",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "16250 HICKORY ST",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927081404"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16250 HICKORY ST",
            "city": "FOUNTAIN VALLEY",
            "state": "CA",
            "postal_code": "927081404",
            "telephone_number": "714-842-0626"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SLONIGER",
        "first_name": "LESLIE",
        "credential": "M.S., CCC-SLP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-05-04",
        "last_updated": "2026-05-04",
        "certification_date": "2026-05-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Speech-Language Pathologist",
            "state": "CA",
            "license": "28801",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Harpreet Singh, MD
• Samarjit Singh, MD
• Six Two Five, Inc.
• Breanna Nicole Skinner
• Sleep & Research Center of Fountain Valley
• Smilendodontics Inc
• Anesha Smith
• Carlee Drew Smith
• Quynh-Uyen Nguyen Smith, MD
• Anne M Smura

• Speech-Language Pathologist in Fountain Valley, CA
• Providers in Fountain Valley, CA by specialty
• Speech-Language Pathologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 4, 2026; 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.