David A. Litvak, MD

Primary specialty

Surgical Critical Care PhysicianTaxonomy code 2086S0102X

License

G81115 Issued in CA

Practice address

23451 Madison St Ste 340
Torrance, CA 90505-4762

Phone

(424) 315-1030

NPI assigned

Nov 29, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Electronic endpoints 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

Specialty

Surgical Oncology

Education

University of Chicago, Pritzker School of Medicine, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

City of Hope Medical FoundationGroup PAC ID 3779751656, 964 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Los Robles Hospital & Medical Center Hospital, Thousand Oaks, CA, CCN 050549

Merit-based Incentive Payment System (MIPS)

Final score

92.8 of 100Reported as group

Quality

78.51

Promoting interoperability

100

Improvement activities

40

Cost

70.37

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dlitvak69843@icare.elcaminohospital.org
• Direct secure messaging: dlitvak96107@cityofhope.direct-ci.com
• Direct secure messaging: direct@cityofhope.direct-ci.com

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.

• City of Hope Medical Foundation

  • Hematology & Oncology Physician
  • Duarte, CA
  • NPI 1871886366

  Surgery

  Medicare reassignment Care Compare group NPD
• Acute Care Surgery Medical Group, Inc.

  • Surgery Physician
  • Sacramento, CA
  • NPI 1700069549
  Medicare reassignment NPD
• Surgical Affiliates of California

  • Surgery Physician
  • Los Banos, CA
  • NPI 1932440781
  Medicare reassignment NPD
• El Camino Health Medical Group

  • Geriatric Medicine (Family Medicine) Physician
  • Los Gatos, CA
  • NPI 1578831764
  NPD (past)
• El Camino Hospital

  • General Acute Care Hospital
  • Mountain View, CA
  • NPI 1093712374
  NPD (past)
• El Camino Hospital

  • General Acute Care Hospital
  • Los Gatos, CA
  • NPI 1417199340
  NPD (past)
• Los Robles Regional Medical Center

  • General Acute Care Hospital
  • Thousand Oaks, CA
  • NPI 1033163019
  NPD (past)
• Oncology Institute Medical Group

  • Surgical Oncology Physician
  • Santa Monica, CA
  • NPI 1952444663
  NPD (past)
• Providence Health System - Southern California

  • General Acute Care Hospital
  • Mission Hills, CA
  • NPI 1477587632
  NPD (past)
• Simi Valley Hospital and Health Care Services

  • General Acute Care Hospital
  • Simi Valley, CA
  • NPI 1063495190
  NPD (past)
• West Hills Hospital

  • General Acute Care Hospital
  • West Hills, CA
  • NPI 1023065729
  NPD (past)
• City of Hope Medical Group of Arizona LLC

  • Medical Oncology Physician
  • Goodyear, AZ
  • NPI 1609026806

  Surgery

  NPD (past)

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

• Los Robles Regional Medical Center

  • General Acute Care Hospital
  • Thousand Oaks, CA
  • NPI 1306890389
  Care Compare affiliation

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

{
    "created_epoch": "1164758400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1750458758",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4140 W 190TH ST FL 2",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905045513",
            "telephone_number": "424-315-1030"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "23451 MADISON ST STE 340",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905054762",
            "telephone_number": "424-315-1030"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "425 Haaland Dr Ste 101",
            "address_purpose": "LOCATION",
            "city": "Thousand Oaks",
            "state": "CA",
            "postal_code": "913615230",
            "country_code": "US",
            "telephone_number": "805-496-2949",
            "fax_number": "805-204-4076",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LITVAK",
        "first_name": "DAVID",
        "middle_name": "A.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-11-29",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086X0206X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Oncology",
            "state": "CA",
            "license": "G81115",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "G81115",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CA",
            "license": "G81115",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@cityofhope.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1500 Duarte Rd",
            "city": "Duarte",
            "state": "CA",
            "country_code": "US",
            "postal_code": "910103012",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Little Company of Mary Hospital
• Little Company of Mary Hospital
• Little Company of Mary Subacute Care
• Amanda Michelle Littlejohn, MS OTR/L
• Jordan-Jeremiah Littlejohn
• Pavel Litvin, PHD, LMFT
• Shani Litwin, MD
• Marina Litwinski, AGACNP-BC
• Roman Andrew Litwinski, M.D.
• Alex Chunhsien Liu, M.D.

• Surgical Critical Care Physician in Torrance, CA
• Providers in Torrance, CA by specialty
• Surgical Critical Care Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.