Courtney Ann O'Brien, DO

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

20A18469 Issued in CA

Practice address

2655 1St St Ste 380
Simi Valley, CA 93065-1551

Phone

(805) 583-7640

Fax

(805) 583-7641

NPI assigned

Jun 21, 2017

Sex

Female

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: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal MedicineAlso: Rheumatology

Education

Nova Southeastern College of Osteo Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

The Regents of the University of CaliforniaGroup PAC ID 1355248584, 1,426 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ronald Reagan UCLA Medical Center Hospital, Los Angeles, CA, CCN 050262
• Adventist Health Simi Valley Hospital, Simi Valley, CA, CCN 050236
• UCLA West Valley Medical Center Hospital, West Hills, CA, CCN 050481

Merit-based Incentive Payment System (MIPS)

Final score

87.51 of 100Reported as group

Quality

79.37

Promoting interoperability

100

Improvement activities

40

Cost

73.65

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• The Regents of the University of California

  dba UCLA Dept of Medicine

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1235107566
  Medicare reassignment Care Compare group NPD
• The Regents of the University of California

  dba UCLA Dept of Medicine

  • Ambulatory Surgical Clinic/Center
  • Valencia, CA
  • NPI 1689200305
  NPD
• Regents Univ of Calif Los Angeles

  dba Resnick Neuropsychiatric Hospital at UCLA

  • Psychiatric Hospital
  • Los Angeles, CA
  • NPI 1952308363
  NPD (past)
• UCLA Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1043427248
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Regents Univ of Calif Los Angeles

  dba UCLA West Valley Medical Center

  • General Acute Care Hospital
  • West Hills, CA
  • NPI 1801653969
  Care Compare affiliation
• Regents Univ of Calif Los Angeles

  dba Ronald Reagan UCLA Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1902803315
  Care Compare affiliation
• Simi Valley Hospital and Health Care Services

  • General Acute Care Hospital
  • Simi Valley, CA
  • NPI 1063495190
  Care Compare affiliation

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

{
    "created_epoch": "1498003200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1659052800000",
    "number": "1609396514",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5767 W CENTURY BLVD SUITE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900955631",
            "telephone_number": "310-301-8707",
            "fax_number": "310-301-8751"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2655 1ST ST STE 380",
            "city": "SIMI VALLEY",
            "state": "CA",
            "postal_code": "930651551",
            "telephone_number": "805-583-7640",
            "fax_number": "805-583-7641"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "O'BRIEN",
        "first_name": "COURTNEY",
        "middle_name": "ANN",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-06-21",
        "last_updated": "2022-07-29",
        "certification_date": "2022-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "CA",
            "license": "20A18469",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Masoumeh Nourshahi
• Donna Tal Novak, PSY.D.
• Novella Pharmacy
• Now U Talking Inc
• Nutrition Partners in Health
• Katherine Michele O'Neill, DPT
• Janine Ochoa
• Mariann Oconnor, LVN
• Kelly Odell
• Alberto Jose Odio, M.D.

• Rheumatology Physician in Simi Valley, CA
• Providers in Simi Valley, CA by specialty
• Rheumatology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 2022; 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.