Austin Steven Dejong, DO

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

1992407886 Issued in CA

Practice address

3800 W Chapman Ave Ste 3200
Orange, CA 92868-1638

Phone

(714) 456-5239

NPI assigned

Mar 22, 2023

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Emergency Medicine

Education

College of Osteo Med of the Pacific at Pomona, 2023

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• Regents of the University of

  • Emergency Medicine Physician
  • Orange, CA
  • NPI 1154379394
  NPD (past)

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

{
    "created_epoch": "1679443200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1992407886",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3800 W CHAPMAN AVE STE 3200",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928681638",
            "telephone_number": "714-456-5239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3800 W CHAPMAN AVE STE 3200",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928681638",
            "telephone_number": "714-456-5239"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEJONG",
        "first_name": "AUSTIN",
        "middle_name": "STEVEN",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-03-22",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "CA",
            "license": "1992407886",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Catherine F Hao Deguzman, NP FAC
• Conrad Deguzman, BCBA
• Mya Rodriguez Deguzman
• Roxanne Deguzman
• Sidney Dejoie
• Meghan Dekitani, MD
• Jenina Mesina Del Campo
• Isabel Natalia Del Canto, MD
• F. Immanuel Obaldo Del Castillo
• Krystal Lynn Del Castillo, MD

• Emergency Medicine Physician in Orange, CA
• Providers in Orange, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.