Lucas D Sittner, D.O.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

DR.0077631 Issued in CO

Practice address

2121 E Harmony Rd Unit 300
Fort Collins, CO 80528-3403

Phone

(970) 224-9102

Fax

(970) 224-9112

NPI assigned

Oct 19, 2007

Last updated

Aug 14, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Enrolled in OK

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

Sleep MedicineAlso: Anesthesiology

Education

Rocky Vista University College of Osteopathic Med, 2014

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

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

{
    "created_epoch": "1192752000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786665600000",
    "number": "1518156140",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2121 E HARMONY RD UNIT 300",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805283403",
            "telephone_number": "970-224-9102",
            "fax_number": "970-224-9112"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2121 E HARMONY RD UNIT 300",
            "city": "FORT COLLINS",
            "state": "CO",
            "postal_code": "805283403",
            "telephone_number": "970-224-9102",
            "fax_number": "970-224-9112"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "800 Stanton L Young Blvd",
            "address_purpose": "LOCATION",
            "city": "Oklahoma City",
            "state": "OK",
            "postal_code": "731045018",
            "country_code": "US",
            "telephone_number": "405-271-6137",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1010 N Kansas St",
            "address_purpose": "LOCATION",
            "city": "Wichita",
            "state": "KS",
            "postal_code": "672143124",
            "country_code": "US",
            "telephone_number": "316-293-2699",
            "fax_number": "316-293-2699",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SITTNER",
        "first_name": "LUCAS",
        "middle_name": "D",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-10-19",
        "last_updated": "2026-08-14",
        "certification_date": "2026-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "KS",
            "license": "9408365",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CO",
            "license": "2523",
            "primary": false
        },
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "OK",
            "license": "8895",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CO",
            "license": "DR.0077631",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Victor Siqueiros
• Jesica Mali Siriwardane, O.D.
• Katherine E Siros, PT, DPT
• Danielle Irene Sisneros, M.A., LPC
• Charles Bradley Sisson, MD
• Nicole Marie Sitzer, PSY.D.
• Lynda Gail Sizemore, RM
• Aaron Emil Skalicky, PH.D.
• Madison Marie Skalko
• SKB Therapy

• Anesthesiology Physician in Fort Collins, CO
• Providers in Fort Collins, CO by specialty
• Anesthesiology Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 14, 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.