John Serzan, LSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LSW.0009927658 Issued in CO

Practice address

8250 S Fillmore Cir
Centennial, CO 80122-3433

Phone

(720) 288-0358

NPI assigned

Sep 21, 2026

Last updated

Sep 21, 2026By the provider in NPPES

Sex

Unspecified or another gender identity

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Allie Serzan Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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

{
    "created_epoch": "1789948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789948800000",
    "number": "1699687913",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8250 S FILLMORE CIR",
            "city": "CENTENNIAL",
            "state": "CO",
            "postal_code": "801223433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8250 S FILLMORE CIR",
            "city": "CENTENNIAL",
            "state": "CO",
            "postal_code": "801223433",
            "telephone_number": "720-288-0358"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SERZAN",
        "first_name": "JOHN",
        "credential": "LSW",
        "sole_proprietor": "YES",
        "sex": "X",
        "enumeration_date": "2026-09-21",
        "last_updated": "2026-09-21",
        "certification_date": "2026-09-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CO",
            "license": "LSW.0009927658",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "ALLIE",
            "last_name": "SERZAN",
            "credential": "LSW",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

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• Clinical Social Worker in Centennial, CO
• Providers in Centennial, CO by specialty
• Clinical Social Worker in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.