NPIMap

Individual provider Active NPI

Arun Kumar Arumugam Raajasekar, MD

  • Hematology & Oncology Physician
  • Mountain View, CA
National Provider Identifier
1801143722
Registry record updated Feb 12, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
A176019 Issued in CA
Practice address
2505 Hospital Dr
Mountain View, CA 94040-4127
Phone
(650) 988-8338
Fax
(650) 962-4594
NPI assigned
Aug 9, 2012
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 12, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X A176019 CA Primary

Addresses

Primary practice location

2505 Hospital Dr
Mountain View, CA 94040-4127

Mailing address

2400 S Avenue a
Yuma, AZ 85364-7170
Phone (928) 344-2000

Other practice location 1

815 Pollard Rd
Los Gatos, CA 95032-1438
Phone (408) 866-3989

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20241204003691 CA Practitioner - Hematology/Oncology 5496040982 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
El Camino Health Medical Network LLCGroup PAC ID 6103115183, 202 clinicians

Practice addresses (Care Compare)

2505 Hospital Dr
Mountain View, CA 94040-4127
Phone (650) 988-8338

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
El Camino Health Medical Network, LLC CurrentSince Jan 25, 2025 Accepting new patients
El Camino Health Medical Group PastSince Sep 8, 2019 Accepting new patients

Locations

815 Pollard Rd
Los Gatos, CA 95032
Phone (408) 378-6131

973 University Ave
Los Gatos, CA 95032
Phone (408) 278-3003

555 Knowles Dr
Ste 200
Los Gatos, CA 95032
Phone (408) 370-0200

2505 Hospital Dr
Mountain View, CA 94040
Phone (650) 940-7015

Organizations & group practices 2

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.

Hospital & facility affiliations 11

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

NPI Registry JSON

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

{
    "created_epoch": "1344470400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770854400000",
    "number": "1801143722",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2400 S AVENUE A",
            "city": "YUMA",
            "state": "AZ",
            "postal_code": "853647170",
            "telephone_number": "928-344-2000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2505 HOSPITAL DR",
            "city": "MOUNTAIN VIEW",
            "state": "CA",
            "postal_code": "940404127",
            "telephone_number": "650-988-8338",
            "fax_number": "650-962-4594"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "815 Pollard Rd",
            "address_purpose": "LOCATION",
            "city": "Los Gatos",
            "state": "CA",
            "postal_code": "950321438",
            "country_code": "US",
            "telephone_number": "408-866-3989",
            "fax_number": "408-871-7433",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ARUMUGAM RAAJASEKAR",
        "first_name": "ARUN KUMAR",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-08-09",
        "last_updated": "2026-02-12",
        "certification_date": "2026-02-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "CA",
            "license": "A176019",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mountain View, CA

Sources for this page

Verify at the official NPI Registry.