Kiron Viswambharan Nair, MD
NPI 1790209914 · Hematology & Oncology Physician · Oskaloosa, IA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kiron Viswambharan Nair, MD is a Hematology & Oncology Physician provider in Oskaloosa, IA (NPI 1790209914).
Provider details
- NPI number
- 1790209914
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD-54987 (IA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
588 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 396 | $90 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 77 | $61 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 28 | $124 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $125 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 25 | $76 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 102 | 22 |
| Prednisone | 62 | 19 |
| Abiraterone Acetate | 52 | — |
| Hydroxyurea | 50 | — |
| Folic Acid | 37 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 18 | 12 |
| Dexamethasone | 17 | — |
| Apixaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,367 across 74 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 1600 N 2nd StClinton, MO 64735-1192Phone: (660) 885-5511
- 2316 E Meyer Blvd1 EastKansas City, MO 64132-1136Phone: (816) 601-3990Fax: (816) 276-3810
- 2750 Clay Edwards Dr Lowr LevelNorth Kansas City, MO 64116-3237Phone: (816) 691-5216Fax: (816) 346-7869
- 1 Brookdale PlzBrooklyn, NY 11212-3139Phone: (718) 240-5000
Registry dates
- Enumerated
- 2017-07-30
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Kiron Viswambharan Nair's NPI number?
- Kiron Viswambharan Nair's National Provider Identifier (NPI) is 1790209914, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kiron Viswambharan Nair's specialty?
- Kiron Viswambharan Nair is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Kiron Viswambharan Nair located?
- Kiron Viswambharan Nair's practice location on file with NPPES is 1229 C Ave E, Oskaloosa, IA 52577-4298.
- What is Kiron Viswambharan Nair's phone number?
- The practice phone number listed in the NPPES registry for Kiron Viswambharan Nair is (641) 672-3236.
- Does Kiron Viswambharan Nair accept Medicare?
- Kiron Viswambharan Nair is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kiron Viswambharan Nair's NPI active?
- Yes — Kiron Viswambharan Nair's NPI (1790209914) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.