Shannon O'Brien, LCSW

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

89763 Issued in CA

Practice address

626 W Lancaster Blvd Unit 128
Lancaster, CA 93534-3108

Phone

(661) 434-5997

Fax

(877) 483-9786

NPI assigned

Mar 20, 2021

Sex

Female

Sole proprietor

Yes

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 CA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: shannonobrien@tdh.allscriptsdirect.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Sud Specialty Group - Ca

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  • NPI 1972138238

  Clinical

  Medicare reassignment NPD
• Teladoc Health Medical Group, P.a.

  • Family Medicine Physician
  • Lewisville, TX
  • NPI 1245403567

  Clinical

  NPD

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

{
    "created_epoch": "1616198400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777507200000",
    "number": "1962088062",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "626 W LANCASTER BLVD UNIT 128",
            "city": "LANCASTER",
            "state": "CA",
            "postal_code": "935343108",
            "telephone_number": "661-434-5997",
            "fax_number": "877-483-9786"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "626 W LANCASTER BLVD UNIT 128",
            "city": "LANCASTER",
            "state": "CA",
            "postal_code": "935343108",
            "telephone_number": "661-434-5997",
            "fax_number": "877-483-9786"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "SHANNON",
        "credential": "LCSW",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-03-20",
        "last_updated": "2026-04-30",
        "certification_date": "2026-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "VA",
            "license": "0904014443",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "CA",
            "license": "89763",
            "primary": true
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NY",
            "license": "102476",
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NJ",
            "license": "44SC06383300",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nurture Therapy Group, an Occupational Therapy Corporation
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• Uchechi Nwachuku, PHARM D
• Gloria Nwamaka Nwigwe, FNP
• Sandra Nygaard
• Angela O'Sullivan
• Oak Fence Senior Living
• Oak Fence Senior Living LLC
• Oak Fence Senior Living, LLC
• Eric Oak, PHARM.D.

• Clinical Social Worker in Lancaster, CA
• Providers in Lancaster, CA by specialty
• Clinical Social Worker in California

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