Michael J. Kosnett, MD, MPH

Primary specialty

Medical Toxicology (Emergency Medicine) PhysicianTaxonomy code 207PT0002X

License

34063 Issued in CO

Practice address

4495 Hale Pkwy Ste 301
Denver, CO 80220-6204

Phone

(303) 571-5778

Fax

(877) 554-1121

NPI assigned

Oct 13, 2006

Last updated

May 13, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1160697600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1326138009",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4495 HALE PKWY STE 301",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802206204",
            "telephone_number": "303-571-5778",
            "fax_number": "877-554-1121"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4495 HALE PKWY STE 301",
            "city": "DENVER",
            "state": "CO",
            "postal_code": "802206204",
            "telephone_number": "303-571-5778",
            "fax_number": "877-554-1121"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12605 E 16th Ave",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800452545",
            "country_code": "US",
            "telephone_number": "720-848-0000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOSNETT",
        "first_name": "MICHAEL",
        "middle_name": "J.",
        "credential": "MD, MPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-10-13",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "CO",
            "license": "34063",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "34063",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "CO",
            "license": "34063",
            "primary": false
        },
        {
            "code": "207PT0002X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Medical Toxicology",
            "state": "CO",
            "license": "34063",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Matthew Koslow, M.D.
• Alison Grace Kosmacki, MD
• Monica Kosmicki, LPN
• Patrick Kosmicki, M.D.
• Alexandra Kosmiski
• Kelly Kossoff
• Gary Rudolf Kostbade
• Bradley Koster
• Mari Claire Koster
• Adam G Koszowski, MD, PHD

• Emergency Medicine Physician in Denver, CO
• Providers in Denver, CO by specialty
• Emergency Medicine Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 13, 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.