Katelyn Rose McMahan, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

MD214923 Issued in OR

Practice address

3600 NW Samaritan Dr
Corvallis, OR 97330-3737

Phone

(541) 768-4906

NPI assigned

Apr 30, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Katelyn Rose Ruark Former name

Medicare fee-for-service enrollment

Enrolled in OR

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

Psychiatry

Education

University of North Dakota School of Medicine, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1619740800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782432000000",
    "number": "1942883541",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3600 NW SAMARITAN DR",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973303737"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3600 NW SAMARITAN DR",
            "city": "CORVALLIS",
            "state": "OR",
            "postal_code": "973303737",
            "telephone_number": "541-768-4906"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3333 Riverbend Dr",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "OR",
            "postal_code": "974778800",
            "country_code": "US",
            "telephone_number": "541-222-2185",
            "fax_number": "541-222-2194",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMAHAN",
        "first_name": "KATELYN",
        "middle_name": "ROSE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-30",
        "last_updated": "2026-06-26",
        "certification_date": "2026-06-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "OR",
            "license": "MD214923",
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "OR",
            "license": "PG205135",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATELYN",
            "last_name": "RUARK",
            "middle_name": "ROSE",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Robin McKelvey, MD
• Stephen McKenzie, LCSW
• Tristan McKibben
• Cody Lee McKinnis
• Elizabeth Larie McMahan
• Joy L McMahon, LCSW
• Susan Marie McMahon
• Ashley Hennessey McMann, M.D.
• Candace J McMaster I
• Peter Troy McMillan, DPT

• Psychiatry Physician in Corvallis, OR
• Providers in Corvallis, OR by specialty
• Psychiatry Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 26, 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.