DR. ARUN KUMAR MD
NPI 1538125372
Internal Medicine - Hematology & Oncology in Knoxville, TN
About Dr. Arun Kumar Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARUN KUMAR MD (NPI 1538125372) is an individual hematology & oncology provider in Knoxville, Tennessee, licensed in Tennessee (67841) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Ohiohealth Mansfield Hospital, and maintains a secondary practice location in Columbus.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Arun Kumar Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Arun Kumar reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Knoxville, TN 37916
- Reassigned Medicare billing, Tennessee enrollment
- 139 clinicians in this Medicare group
Columbus, OH 43215
- Reassigned Medicare billing, Ohio enrollment
- 3,314 clinicians in this Medicare group
Marion, OH 43302
- Reassigned Medicare billing, Ohio enrollment
- 423 clinicians in this Medicare group
Avon, OH 44011
- Reassigned Medicare billing, Ohio enrollment
- 7,608 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ohiohealth Mansfield Hospital
Acute Care Hospitals · Mansfield, OHCleveland Clinic
Acute Care Hospitals · Cleveland, OHAvita Ontario
Acute Care Hospitals · Ontario, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37916 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KNOXVILLE, TN 37916
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Arun Kumar's NPI number?
The NPI number for Arun Kumar is 1538125372. It was assigned to this individual provider in the NPPES registry on April 21, 2006.
Where is Arun Kumar located?
Arun Kumar practices at 1915 White Ave, Knoxville, TN 37916. The listed phone number is (865) 331-2863.
What is Arun Kumar's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Arun Kumar enrolled in Medicare?
Yes. Arun Kumar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Arun Kumar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arun Kumar reassigns Medicare benefits to 4 organizations: Thompson Oncology Group (Knoxville, TN), Ohiohealth Corporation (Columbus, OH), Marion Area Physicians LLC (Marion, OH) and The Cleveland Clinic Foundation (Avon, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Arun Kumar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Arun Kumar accept?
Health plans from Anthem Blue Cross and Blue Shield and Oscar Insurance Corporation of Ohio list Arun Kumar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Arun Kumar affiliated with any hospitals?
According to CMS data, Arun Kumar is affiliated with Ohiohealth Mansfield Hospital, Cleveland Clinic and Avita Ontario.
When was this NPI record last updated?
The NPPES record for Arun Kumar was last updated on May 30, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.