Joseph M Nussbaum, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

F46586 Issued in CA

Practice address

2325 Townsgate Rd
Suite 100
Westlake Village, CA 91361-5986

Phone

(213) 483-0901

Fax

(213) 483-6650

NPI assigned

Jul 12, 2006

Sex

Male

Sole proprietor

Yes

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

Infectious DiseaseAlso: Internal Medicine

Education

Other, 1981

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Healthcare Partners Affiliates Medical GroupGroup PAC ID 7315842002, 775 clinicians

Southern California Infectious Disease Medical GroupGroup PAC ID 5799714135, 3 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hollywood Presbyterian Medical Center Hospital, Los Angeles, CA, CCN 050063
• California Hospital Medical Center la Hospital, Los Angeles, CA, CCN 050149
• Pih Health Good Samaritan Hospital Hospital, Los Angeles, CA, CCN 050471
• Los Angeles General Medical Center Hospital, Los Angeles, CA, CCN 050373

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: jnussbaum214413@westdirect.optum.com
• Direct secure messaging: josephnussbaum@hcpca.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.

• Healthcare Partners Affiliates Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593
  Medicare reassignment Care Compare group NPD
• Southern California Infectious Disease Medical Group

  • Infectious Disease Physician
  • Westlake Village, CA
  • NPI 1639100662
  Medicare reassignment Care Compare group NPD
• David D Sohn MD Apc

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1205385408
  Medicare reassignment
• Healthcare Partners Affiliates Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  NPD (past)
• Cha Hollywood Medical Center, LP

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1922033547
  NPD (past)
• Dignity Community Care

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1114081056
  NPD (past)
• Pih Health Good Samaritan Hospital

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1508859323
  NPD (past)

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

• Cha Hollywood Medical Center, LP

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1922033547
  Care Compare affiliation
• County of Los Angeles

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1598773715
  Care Compare affiliation
• Dignity Community Care

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1114081056
  Care Compare affiliation
• Pih Health Good Samaritan Hospital

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1508859323
  Care Compare affiliation

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

{
    "created_epoch": "1152662400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764806400000",
    "number": "1922033463",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 2190",
            "city": "LA HABRA",
            "state": "CA",
            "postal_code": "906322190",
            "telephone_number": "213-483-0901",
            "fax_number": "213-483-6650"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2325 TOWNSGATE RD",
            "address_2": "SUITE 100",
            "city": "WESTLAKE VILLAGE",
            "state": "CA",
            "postal_code": "913615986",
            "telephone_number": "213-483-0901",
            "fax_number": "213-483-6650"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NUSSBAUM",
        "first_name": "JOSEPH",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-12",
        "last_updated": "2025-12-04",
        "certification_date": "2025-12-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CA",
            "license": "F46586",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jami Noxon, HA8942
• Denise Noyer, L.AC.
• NTR Resources, LLC
• Rebecca Sills Nudel, LMFT
• Robert Nudelman, MD
• Nuwave Wellness
• Jamaine O'Brien, PT
• Marcus O'Leary, MFTI
• Oak Forest Recovery Center, Inc
• Oaks Psychological Services Inc

• Infectious Disease Physician in Westlake Village, CA
• Providers in Westlake Village, CA by specialty
• Infectious Disease Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 4, 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.