Thomas Leiferman

Primary specialty

Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X

License

T-25-5572 Issued in OR

Practice address

530 NW 5TH St
Corvallis, OR 97330-6419

Phone

(541) 753-3333

NPI assigned

Sep 1, 2026

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

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": "1788220800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1679481238",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "530 NW 5TH ST",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973306419",
            "telephone_number": "541-753-3333"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "530 NW 5TH ST",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973306419",
            "telephone_number": "541-753-3333"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEIFERMAN",
        "first_name": "THOMAS",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-09-01",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "OR",
            "license": "T-25-5572",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christopher William Leesman, D.O.
• Sydney Marie Lefay, D.O.
• Christopher Lehman, PHARM.D.
• Kiyomi Lehman, PHARMD.
• Lisa Lehrer, LDM, CPM
• Murray Norman Lein, MA, ORTL
• Taylor Leischman, CRNA
• Kelly Lejeune
• Julie M Lemaster, LCSW
• Taura Lemmon, D.C.

• Addiction (Substance Use Disorder) Counselor in Corvallis, OR
• Providers in Corvallis, OR by specialty
• Addiction (Substance Use Disorder) Counselor in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.

Verify at the official NPI Registry.