Calabasas Anesthesia Associates

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

Legal business name

CALABASAS ANESTHESIA ASSOCIATES

Practice address

24003A Ventura Blvd
Calabasas, CA 91302-1447

Phone

(818) 995-8590

Fax

(818) 285-5955

NPI assigned

Sep 23, 2025

Organization subpart

No

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

Authorized official

Name

Mr. Philip H Conwisar, MD

Title

Ceo

Phone

(818) 995-8590

Specialties & licenses 1

Addresses

Locations

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

{
    "created_epoch": "1758585600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1758672000000",
    "number": "1538031901",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24003A VENTURA BLVD",
            "city": "CALABASAS",
            "state": "CA",
            "postal_code": "913021447",
            "telephone_number": "818-995-8590",
            "fax_number": "818-285-5955"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24003A VENTURA BLVD",
            "city": "CALABASAS",
            "state": "CA",
            "postal_code": "913021447",
            "telephone_number": "818-995-8590",
            "fax_number": "818-285-5955"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CALABASAS ANESTHESIA ASSOCIATES",
        "organizational_subpart": "NO",
        "enumeration_date": "2025-09-23",
        "last_updated": "2025-09-24",
        "certification_date": "2025-09-24",
        "status": "A",
        "authorized_official_last_name": "CONWISAR",
        "authorized_official_first_name": "PHILIP",
        "authorized_official_middle_name": "H",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "818-995-8590",
        "authorized_official_name_prefix": "Mr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Anesthesiology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cassandra Butcher
• Randy Butler
• Kathryn Byam, MA
• Candace Caballero
• Steve Cagan, LMFT
• Calabasas ASC
• Calabasas Center for Oral Surgery
• Calabasas Medical Center Inc
• Calabasas Medical Spa
• Calabasas Pediatrics

• Anesthesiology Physician in Calabasas, CA
• Providers in Calabasas, CA by specialty
• Anesthesiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 24, 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.