Karen G.M. Sokolov, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

A100091 Issued in CA

Practice address

181 S Buena Vista St
Burbank, CA 91505-4504

Phone

(818) 847-3444

Fax

(818) 847-3499

NPI assigned

Jan 12, 2010

Last updated

Dec 14, 2025By the provider in NPPES

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

Other names 1

• Dr. Karen Galia Muhtar Former name

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

Radiation Oncology

Education

University of California, San Francisco School of Medicine, 2005

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

• Providence Saint Joseph Medical Ctr Hospital, Burbank, CA, CCN 050235

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• City of Hope Medical Foundation

  dba City of Hope Duarte

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

  Radiation Oncology

  Medicare reassignment Care Compare group NPD
• County of Los Angeles

  dba County of Los Angeles Harbor UCLA Medical Center

  • General Acute Care Hospital
  • Torrance, CA
  • NPI 1851363188
  Medicare reassignment NPD
• City of Hope Medical Group, Inc.

  • Anesthesiology Physician
  • Duarte, CA
  • NPI 1033435292

  Radiation Oncology

  NPD
• County of Los Angeles

  • Clinic/Center
  • Los Angeles, CA
  • NPI 1295407401
  NPD
• County of Los Angeles Auditor Controller

  dba Los Angeles County Olive View-UCLA Medical Center

  • General Acute Care Hospital
  • Sylmar, CA
  • NPI 1134159320
  NPD
• Dignity Health

  dba Mercy Hospital

  • General Acute Care Hospital
  • Bakersfield, CA
  • NPI 1104981661
  NPD (past)
• Empire Oncology PC

  • Radiation Oncology Physician
  • Temecula, CA
  • NPI 1467764092
  NPD (past)
• Providence Health System - Southern California

  • Psychiatric Hospital Unit
  • San Pedro, CA
  • NPI 1154349371
  NPD (past)
• Providence Health System - Southern California

  dba Providence Saint Joseph Medical Center

  • General Acute Care Hospital
  • Burbank, CA
  • NPI 1336173269
  NPD (past)
• Providence Health System Southern California

  dba Providence Little Company of Mary Medical Center Torrance

  • General Acute Care Hospital
  • Torrance, CA
  • NPI 1902844988
  NPD (past)
• Valley Radiotherapy Associates Medical Group Inc

  • Radiation Oncology Physician
  • Fullerton, CA
  • NPI 1255594925
  NPD (past)

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

• Providence Health System - Southern California

  dba Providence Saint Joseph Medical Center

  • General Acute Care Hospital
  • Burbank, CA
  • NPI 1336173269
  Care Compare affiliation

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

{
    "created_epoch": "1263254400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765670400000",
    "number": "1932439080",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 512185",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900510185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "181 S BUENA VISTA ST",
            "city": "BURBANK",
            "state": "CA",
            "postal_code": "915054504",
            "telephone_number": "818-847-3444",
            "fax_number": "818-847-3499"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SOKOLOV",
        "first_name": "KAREN",
        "middle_name": "G.M.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2010-01-12",
        "last_updated": "2025-12-14",
        "certification_date": "2025-12-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "CA",
            "license": "A100091",
            "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": [
        {
            "first_name": "KAREN",
            "last_name": "MUHTAR",
            "middle_name": "GALIA",
            "prefix": "DR.",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Radiation Oncology Physician in Burbank, CA
• Providers in Burbank, CA by specialty
• Radiation Oncology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 14, 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.