NPIMap

Individual provider Active NPI

Kalaivani Sivakumar, M.D.,

  • Interventional Cardiology Physician
  • Omaha, NE
National Provider Identifier
1548674583
Registry record updated Jul 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Interventional Cardiology PhysicianTaxonomy code 207RI0011X
License
10524 Issued in NE
Practice address
982265 Nebraska Medical Ctr
Omaha, NE 68198-2265
Phone
(402) 559-8888
NPI assigned
Jun 18, 2014
Last updated
Jul 19, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 19, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Interventional Cardiology Physician 207RI0011X 10524 NE Primary

Addresses

Primary practice location

982265 Nebraska Medical Ctr
Omaha, NE 68198-2265

Mailing address

4301 W Markham St # 783
Little Rock, AR 72205-7101
Phone (501) 686-8000

Other names 1

  • Kalaivani Natarajan Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AR
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
I20211201001865 AR Practitioner - Cardiovascular Disease (Cardiology) 8426350356 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)
Education
Other, 2008
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of Arkansas for Medical SciencesGroup PAC ID 4082528955, shared by 29 NPIs, 1,159 clinicians

Practice addresses (Care Compare)

4301 W Markam St
Little Rock, AR 72205-7101

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
E-14749ARMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Arkansas for Medical Sciences CurrentSince Nov 1, 2021 Accepting new patients
University of Arkansas for Medical Sciences CurrentSince Nov 1, 2021 Accepting new patients
University of Arkansas for Medical Sciences Current Accepting new patients
University of Arkansas for Medical Sciences CurrentSince Nov 1, 2021 Accepting new patients
University of Arkansas for Medical Sciences Internal Medicine Current Accepting new patients

Locations

1 Childrens Way
#653
Little Rock, AR 72202
Phone (501) 614-2006

4301 W Markham St
Little Rock, AR 72205
Phone (501) 603-1278

4301 W Markham St
#528
Little Rock, AR 72205
Phone (501) 614-2006

4301 W Markham St
#532
Little Rock, AR 72205
Phone (501) 686-5311

4301 W Markham St
#783
Little Rock, AR 72205
Phone (501) 603-1278

4301 W Markham St
Ste 528
Little Rock, AR 72205

Organizations & group practices 5

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.

Hospital & facility affiliations 4

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": "1403049600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784419200000",
    "number": "1548674583",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4301 W MARKHAM ST # 783",
            "city": "LITTLE ROCK",
            "state": "AR",
            "postal_code": "722057101",
            "telephone_number": "501-686-8000",
            "fax_number": "501-526-5148"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "982265 NEBRASKA MEDICAL CTR",
            "city": "OMAHA",
            "state": "NE",
            "postal_code": "681982265",
            "telephone_number": "402-559-8888"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIVAKUMAR",
        "first_name": "KALAIVANI",
        "name_prefix": "Mrs.",
        "credential": "M.D.,",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-06-18",
        "last_updated": "2026-07-19",
        "certification_date": "2026-07-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0011X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Interventional Cardiology",
            "state": "NE",
            "license": "10524",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KALAIVANI",
            "last_name": "NATARAJAN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Omaha, NE

Sources for this page

Verify at the official NPI Registry.