Ramkumar Viswanathan Venkateswaran, MD

Primary specialty

Clinical Cardiac Electrophysiology PhysicianTaxonomy code 207RC0001X

License

A169804 Issued in CA

Practice address

100 Moody CT Ste 110
Thousand Oaks, CA 91360-6076

Phone

(805) 418-3500

Fax

(805) 418-3505

NPI assigned

Jun 6, 2017

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

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

Cardiac ElectrophysiologyAlso: Cardiovascular Disease (Cardiology)

Education

Harvard Medical School, 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

• UCLA West Valley Medical Center Hospital, West Hills, CA, CCN 050481
• Los Angeles General Medical Center Hospital, Los Angeles, CA, CCN 050373
• Ronald Reagan UCLA Medical Center Hospital, Los Angeles, CA, CCN 050262
• Santa Monica - UCLA Med Ctr & Orthopaedic Hospital Hospital, Santa Monica, CA, CCN 050112
• Lac/Olive View-UCLA Medical Center Hospital, Sylmar, CA, CCN 050040

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rvenkateswaran1443044@direct.uclahealth.org

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

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

  • Ambulatory Surgical Clinic/Center
  • Valencia, CA
  • NPI 1689200305
  NPD
• 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.

• County of Los Angeles

  • General Acute Care Hospital
  • Sylmar, CA
  • NPI 1134143415
  Care Compare affiliation
• County of Los Angeles

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1598773715
  Care Compare affiliation
• Regents of the Univ of California

  • General Acute Care Hospital
  • Santa Monica, CA
  • NPI 1427055839
  Care Compare affiliation
• Regents Univ of Calif Los Angeles

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

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1902803315
  Care Compare affiliation

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

{
    "created_epoch": "1496707200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1477082220",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5767 W CENTURY BLVD STE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900455631",
            "telephone_number": "310-301-5200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 MOODY CT STE 110",
            "city": "THOUSAND OAKS",
            "state": "CA",
            "postal_code": "913606076",
            "telephone_number": "805-418-3500",
            "fax_number": "805-418-3505"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "VENKATESWARAN",
        "first_name": "RAMKUMAR",
        "middle_name": "VISWANATHAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-06",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A169804",
            "primary": false
        },
        {
            "code": "207RC0001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Clinical Cardiac Electrophysiology",
            "state": "CA",
            "license": "A169804",
            "primary": true
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "CA",
            "license": "A169804",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Carmen Vasquez
• Richard Velasco, PHARM.D.
• Eva Lourdes Velasquez
• Joshua Vellozzi, MD
• Kirstie Venegas, MD
• Ventura Center for Recovery
• Ventura Center for Recovery
• Ventura County Behavioral Health Alcohol and Drug Programs
• Ventura Orthopedics Medical Group, Inc.
• Ventura Pharm Inc

• Clinical Cardiac Electrophysiology Physician in Thousand Oaks, CA
• Providers in Thousand Oaks, CA by specialty
• Clinical Cardiac Electrophysiology Physician in California

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