Sean O'Dwyer

Primary specialty

Mental Health CounselorTaxonomy code 101YM0800X

Practice address

161 W Victoria St
Long Beach, CA 90805-2175

Phone

(323) 242-5000

NPI assigned

Apr 8, 2016

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

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, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sud Specialty Group - CaGroup PAC ID 9537534177, 519 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

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

  • Addiction Medicine (Psychiatry & Neurology) Physician
  • Santa Clara, CA
  • NPI 1972138238
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1460073600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752710400000",
    "number": "1386008043",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "161 W VICTORIA ST",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908052175",
            "telephone_number": "323-242-5000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "161 W VICTORIA ST",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908052175",
            "telephone_number": "323-242-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'DWYER",
        "first_name": "SEAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-08",
        "last_updated": "2025-07-17",
        "certification_date": "2025-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Jane O'Brien
• Haley Christina O'Bryan, LMFT
• Chelsea L O'Connor, PT, DPT
• Jessica O'Donnell
• Sanjaya-Cory O'Donnell
• Janine Claire O'Hara, R.N.
• Caitlin O'Keefe
• Sophia Ramona Eleanor O'Keefe
• Marie O'Leary, PT, DPT
• Charles Gerald O'Malley, PH.D.

• Mental Health Counselor in Long Beach, CA
• Providers in Long Beach, CA by specialty
• Mental Health Counselor in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 2025; 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.