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Diagnostic Radiology

Harigovinda Challa, MD

Works at hospitals in Waterloo, IA · Indianapolis, IN · Chattanooga, TN … · Iowa, Indiana, Tennessee

Summary

Dr. Harigovinda Challa, MD is a radiologist at 1814 Firelight Way, Ooltewah, TN 37363. Phone: (712) 279-3285. May accept Medicare assignment. In 2024, Harigovinda Challa had 2,856 Original Medicare patients and 4,722 services. NPI 1508942319. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Harigovinda Challa, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Harigovinda Challa accept Medicare assignment?
Medicare's clinician data says Harigovinda Challa may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Harigovinda Challa see?
In 2024, CMS data shows 2,856 Original Medicare patients and 4,722 services for Harigovinda Challa. This counts Original Medicare only and measures volume, not quality.
What is Harigovinda Challa's NPI number?
1508942319. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Harigovinda Challa, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients2,856
Services billed to Medicare4,722
Different services or procedures138
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. X-ray of chest, 1 view (71045)843 services
  2. Ct scan head or brain without contrast (70450)505 services
  3. Ct scan of abdomen and pelvis with contrast (74177)247 services
  4. Ct scan of upper spine without contrast (72125)235 services
  5. Ct scan of blood vessels of chest with contrast (71275)156 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis62%
  • Ischemic heart disease43%
  • Anxiety42%
  • Depression40%

Hospitals where Harigovinda Challa works

Medicare's Facility Affiliation Data lists Harigovinda Challa at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Harigovinda Challa is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Harigovinda Challa as a member of these groups (CMS data updated October 2, 2026).

  • Imaging Associates of Indiana PC301 clinicians in the group
  • Northwest Iowa Hospital Corporation160 clinicians in the group
  • Allen Memorial Hospital Corporation157 clinicians in the group
  • Tennessee Interventional and Imaging Associates PLLC32 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Tennessee →

Other radiologists in Tennessee

Clinicians with the same Medicare primary specialty in Tennessee — not a recommendation.

All radiologists in Tennessee →

Other clinicians in Imaging Associates of Indiana PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1997 (29 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1508942319
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians