Isaac Spencer Sylvester

Primary specialty

Behavior TechnicianTaxonomy code 106S00000X

Practice address

23041 Avenida de la Carlota Ste 175
Laguna Hills, CA 92653-1588

Phone

(949) 954-4422

Fax

(714) 242-1611

NPI assigned

Jun 23, 2025

Sex

Male

Sole proprietor

No

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

Practice roles

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Behavioral Concepts LLC

  • Behavior Analyst
  • Laguna Hills, CA
  • NPI 1669891644
  NPD (past)

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

{
    "created_epoch": "1750636800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750636800000",
    "number": "1487541264",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "23041 AVENIDA DE LA CARLOTA STE 175",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926531588",
            "telephone_number": "949-954-4422",
            "fax_number": "714-242-1611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23041 AVENIDA DE LA CARLOTA STE 175",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926531588",
            "telephone_number": "949-954-4422",
            "fax_number": "714-242-1611"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SYLVESTER",
        "first_name": "ISAAC",
        "middle_name": "SPENCER",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-06-23",
        "last_updated": "2025-06-23",
        "certification_date": "2025-06-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106S00000X",
            "taxonomy_group": "",
            "desc": "Behavior Technician",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Surinder Brar
• Robert C Sutter Jr., M.D.
• Ashley Swanson, NP
• Joan Yvette Sy, D.O.
• Theodore Sy, MD
• Gene Lloyd Syn, M.D.
• Jeremy Szymanowski, M.D.
• Ali Tabatabai, M.D.
• George M Tadros, M.D.
• Sonja Taghavi

• All providers in Laguna Hills, CA
• Behavior Technician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 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.