Nicholaus S. Ryan, M.S. P.P.S.

Primary specialty

School PsychologistTaxonomy code 103TS0200X

Practice address

400 Grand Ave
Oroville, CA 95965-4007

Phone

(530) 538-8830

NPI assigned

Dec 15, 2025

Sex

Male

Sole proprietor

No

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

Medicare enrollment (NPD)

Not enrolled

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

{
    "created_epoch": "1765756800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765756800000",
    "number": "1114881935",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2828 LEVI LN",
            "city": "CHICO",
            "state": "CA",
            "postal_code": "959737281",
            "telephone_number": "530-538-8830"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 GRAND AVE",
            "city": "OROVILLE",
            "state": "CA",
            "postal_code": "959654007",
            "telephone_number": "530-538-8830"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "RYAN",
        "first_name": "NICHOLAUS",
        "middle_name": "S.",
        "credential": "M.S. P.P.S.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-12-15",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TS0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, School",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Jason Russell, M.D.
• Stephanie Jane Russell
• Peter Martin Russo, MD
• Stephanie Amaral Rust, LCSW
• Christopher Rutherford, PHARMD
• Francisco Saavedra, PA
• David Scott Sabo, PA
• Kae Luang Saechao
• Matthew Phillip Sael
• Gurpreet Singh Sahi

• School Psychologist in Oroville, CA
• Providers in Oroville, CA by specialty
• School Psychologist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 15, 2025; 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.