DR. HARSHA GADADHAR VARDHANA M.D.
NPI 1285823658
Internal Medicine - Medical Oncology in Chattanooga, TN
About Dr. Harsha Gadadhar Vardhana M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HARSHA GADADHAR VARDHANA M.D. (NPI 1285823658) is an individual medical oncology provider in Chattanooga, Tennessee, licensed in Tennessee (41152) and active in the NPI registry since October 2007. He is enrolled in Medicare PECOS, is affiliated with Memorial Healthcare System, Inc, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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. Harsha Gadadhar Vardhana M.d. 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 Reassignment
Medicare enrollment records show Harsha Vardhana reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chattanooga, TN 37403
- Reassigned Medicare billing, Tennessee and Georgia enrollments
- Also billed through NPI 1881212553 (Georgia)
- 464 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 69
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.
Memorial Healthcare System, Inc
Acute Care Hospitals · Chattanooga, TNErlanger Medical Center
Acute Care Hospitals · Chattanooga, TNParkridge Medical Center
Acute Care Hospitals · Chattanooga, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHATTANOOGA, TN 37403
CHATTANOOGA, TN 37403
CHATTANOOGA, TN 37403
CHATTANOOGA, TN 37403
CHATTANOOGA, TN 37403
CHATTANOOGA, TN 37403
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 Harsha Vardhana's NPI number?
The NPI number for Harsha Vardhana is 1285823658. It was assigned to this individual provider in the NPPES registry on October 22, 2007.
Where is Harsha Vardhana located?
Harsha Vardhana practices at 1032 Mccallie Ave Ste 200, Chattanooga, TN 37403. The listed phone number is (423) 752-5004.
What is Harsha Vardhana's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Harsha Vardhana enrolled in Medicare?
Yes. Harsha Vardhana 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 organization bills Medicare for Harsha Vardhana's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Harsha Vardhana reassigns Medicare benefits to Tennessee Oncology (Chattanooga, TN). The 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 Harsha Vardhana's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Harsha Vardhana accept?
Health plans from Alliant Health Plans, Inc., Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter of Alabama and Ambetter of North Carolina and 5 other insurers list Harsha Vardhana 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 Harsha Vardhana affiliated with any hospitals?
According to CMS data, Harsha Vardhana is affiliated with Memorial Healthcare System, Inc, Erlanger Medical Center and Parkridge Medical Center.
When was this NPI record last updated?
The NPPES record for Harsha Vardhana was last updated on October 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.