Kiron Viswambharan Nair, MD

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

MD-54987 Issued in IA

Practice address

1229 C Ave E
Oskaloosa, IA 52577-4298

Phone

(641) 672-3236

NPI assigned

Jul 30, 2017

Sex

Male

Sole proprietor

Yes

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 MO, IA2 enrollments

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 2

Specialty

Hematology/Oncology

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mahaska County HospitalGroup PAC ID 2769388677, shared by 6 NPIs, 128 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mahaska Health Partnership Hospital, Oskaloosa, IA, CCN 161379
• Golden Valley Memorial Hospital Hospital, Clinton, MO, CCN 260175
• NKC Health Hospital, North Kansas City, MO, CCN 260096
• Cass Regional Medical Center Hospital, Harrisonville, MO, CCN 261324

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: knair1207131@direct.unitypoint.org
• Direct secure messaging: kiron.nair.1@15058.direct.athenahealth.com
• Direct secure messaging: kiron.nair@hca2.eclinicaldirectplus.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.

• Mahaska County Hospital

  dba Mahaska Health

  • Critical Access Hospital
  • Oskaloosa, IA
  • NPI 1356320659
  Medicare reassignment NPD
• Mahaska County Hospital

  dba Mahaska Health

  • Family Medicine Physician
  • Oskaloosa, IA
  • NPI 1407869852
  Medicare reassignment NPD
• Golden Valley Memorial Hospital District

  dba Golden Valley Medical - Clinton

  • Rural Health Clinic/Center
  • Clinton, MO
  • NPI 1003873266
  Medicare reassignment NPD
• Meritas Health Corporation

  dba NKC Health

  • Family Medicine Physician
  • Kansas City, MO
  • NPI 1801875091
  Medicare reassignment NPD
• St Luke's Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• Golden Valley Memorial Hospital District

  dba GVMH Medical East

  • Clinic/Center
  • Clinton, MO
  • NPI 1396379830
  NPD
• Golden Valley Memorial Hospital District

  • General Acute Care Hospital
  • Clinton, MO
  • NPI 1710075361
  NPD
• Meritas Health Corporation

  dba NKC Health

  • Medical Oncology Physician
  • North Kansas City, MO
  • NPI 1225872286

  Hematology & Oncology

  NPD
• Meritas Health Corporation

  • Neurology Physician
  • Kansas City, MO
  • NPI 1669323291
  NPD
• American Oncology Partners, P.a.

  dba MidAmerica Cancer Care

  • Hematology & Oncology Physician
  • Kansas City, MO
  • NPI 1801606876
  NPD (past)
• Meritas Health Corporation

  dba NKC Health

  • Neurology Physician
  • North Kansas City, MO
  • NPI 1023439833
  NPD (past)

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

• Mahaska County Hospital

  dba Mahaska Health

  • Critical Access Hospital
  • Oskaloosa, IA
  • NPI 1356320659
  Care Compare affiliation
• Cass Regional Medical Center

  • Critical Access Hospital
  • Harrisonville, MO
  • NPI 1477535326
  Care Compare affiliation
• Golden Valley Memorial Hospital District

  • General Acute Care Hospital
  • Clinton, MO
  • NPI 1710075361
  Care Compare affiliation
• North Kansas City Hospital

  dba Skilled Nursing Unit

  • Skilled Nursing Facility
  • North Kansas City, MO
  • NPI 1437103215

  Hospital

  Care Compare affiliation
• North Kansas City Hospital

  dba NKC Health

  • General Acute Care Hospital
  • North Kansas City, MO
  • NPI 1629062799
  Care Compare affiliation

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

{
    "created_epoch": "1501372800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1790209914",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1229 C AVE E",
            "city": "OSKALOOSA",
            "state": "IA",
            "postal_code": "525774298",
            "telephone_number": "641-672-3236"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1229 C AVE E",
            "city": "OSKALOOSA",
            "state": "IA",
            "postal_code": "525774298",
            "telephone_number": "641-672-3236"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1600 N 2nd St",
            "address_purpose": "LOCATION",
            "city": "Clinton",
            "state": "MO",
            "postal_code": "647351192",
            "country_code": "US",
            "telephone_number": "660-885-5511",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2316 E Meyer Blvd",
            "address_2": "1 East",
            "address_purpose": "LOCATION",
            "city": "Kansas City",
            "state": "MO",
            "postal_code": "641321136",
            "country_code": "US",
            "telephone_number": "816-601-3990",
            "fax_number": "816-276-3810",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Brookdale Plz",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "112123139",
            "country_code": "US",
            "telephone_number": "718-240-5000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2750 Clay Edwards Dr Lowr Level",
            "address_purpose": "LOCATION",
            "city": "North Kansas City",
            "state": "MO",
            "postal_code": "641163237",
            "country_code": "US",
            "telephone_number": "816-691-5216",
            "fax_number": "816-346-7869",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "VISWAMBHARAN NAIR",
        "first_name": "KIRON",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-07-30",
        "last_updated": "2025-09-11",
        "certification_date": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "IA",
            "license": "MD-54987",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "MO",
            "license": "2021040912",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NY",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Michael Vander Veen, D.C.
• Whitney Vander Veen, PT, DPT, ATC
• Leah Ray Vanloon
• Kimberly Anne Veldhuizen, FNP
• Mary C Vigneri Boles, LISW
• Aimee E Wagner, OTD
• Timothy E Wahl, PHD
• Wal-Mart Stores, Inc. (Vision Center 30-1393)
• Molly J Walker, O.D.
• Mollie Waller, DO

• Hematology & Oncology Physician in Oskaloosa, IA
• Providers in Oskaloosa, IA by specialty
• Hematology & Oncology Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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.