Michael O'Shaughnessy

Primary specialty

School PsychologistTaxonomy code 103TS0200X

Practice address

10910 Clarksville Pike
Ellicott City, MD 21042-6106

Phone

(240) 893-2476

NPI assigned

Sep 30, 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": "1759190400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759190400000",
    "number": "1376417832",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "10910 CLARKSVILLE PIKE",
            "city": "ELLICOTT CITY",
            "state": "MD",
            "postal_code": "210426106",
            "telephone_number": "240-893-2476"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10910 CLARKSVILLE PIKE",
            "city": "ELLICOTT CITY",
            "state": "MD",
            "postal_code": "210426106",
            "telephone_number": "240-893-2476"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'SHAUGHNESSY",
        "first_name": "MICHAEL",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-09-30",
        "last_updated": "2025-09-30",
        "certification_date": "2025-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103TS0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, School",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Melanie Powers Nystrom, MA, NBC-HWC
• Michael J O'Connell, PH.D.
• Kristen M O'Hanlon, OT/LT
• Katherine O'Hare, M.S., CCC-SLP
• Marianne O'Leary, PH.D.
• Oasis RX Solutions, LLC
• Maria Celia Gorantes Obedicen, R.P.T.
• Rosemary Obiefune, MSN, CRNP, PMHNP-BC
• Yvonne Nonyelum Obike, CRNP
• Laurie Oconnell

• School Psychologist in Ellicott City, MD
• Providers in Ellicott City, MD by specialty
• School Psychologist in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 30, 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.