Oscar Erkenswick, DC

Primary specialty

ChiropractorTaxonomy code 111N00000X

License

038.014021 Issued in IL

Practice address

1714 W Sunnyside Ave Apt 2R
Chicago, IL 60640-5358

Phone

(408) 218-6856

NPI assigned

Nov 24, 2019

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1574553600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1306482427",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1714 W SUNNYSIDE AVE APT 2R",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606405358",
            "telephone_number": "408-218-6856"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1714 W SUNNYSIDE AVE APT 2R",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606405358",
            "telephone_number": "408-218-6856"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ERKENSWICK",
        "first_name": "OSCAR",
        "name_prefix": "Dr.",
        "credential": "DC",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-11-24",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "IL",
            "license": "038.014021",
            "primary": true
        },
        {
            "code": "111N00000X",
            "taxonomy_group": "",
            "desc": "Chiropractor",
            "state": "CA",
            "license": "34510",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Chiropractor in Chicago, IL
• Providers in Chicago, IL by specialty
• Chiropractor in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 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.