Walter R O'Brien, M.D.

Primary specialty

Sports Medicine (Family Medicine) PhysicianTaxonomy code 207QS0010X

License

G063193 Issued in CA

Practice address

11600 Wilshire Blvd
Suite 522
Los Angeles, CA 90025-5781

Phone

(310) 477-7276

Fax

(310) 477-5148

NPI assigned

May 12, 2006

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in CA

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

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

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.

• Walter R Obrien MD Inc a Medical Corporation

  dba Walter Obrien MD Inc a Medical Corporation

  • Sports Medicine (Family Medicine) Physician
  • Los Angeles, CA
  • NPI 1851623029
  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1147392000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1678147200000",
    "number": "1346290814",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11710 WILSHIRE BLVD",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900251503",
            "telephone_number": "310-477-7276",
            "fax_number": "310-477-5148"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11600 WILSHIRE BLVD",
            "address_2": "SUITE 522",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900255781",
            "telephone_number": "310-477-7276",
            "fax_number": "310-477-5148"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "WALTER",
        "middle_name": "R",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-12",
        "last_updated": "2023-03-07",
        "certification_date": "2020-05-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QS0010X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Sports Medicine",
            "state": "CA",
            "license": "G063193",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G631931",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Mary P O'Brien, PHD
• Meghan O'Brien, CCC-SLP
• Patricia Edwina O'Brien, PH.D
• Robert J. O'Brien, LMFT
• Teresa Carol O'Brien, MA
• Jane O'Bryan, MD
• Kevin O'Bryan, LMFT
• Erin Theresa O'Callaghan, PH.D
• Rory Elizabeth O'Callaghan, PHARM.D.
• Chelsea O'Camb

• Sports Medicine (Family Medicine) Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Sports Medicine (Family Medicine) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 2023; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.