Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Harigovinda Reddy Challa, MD

Individual provider Pediatric Radiology Physician · NPI 1508942319

Harigovinda Reddy Challa, MD practises Diagnostic Radiology in Chattanooga, Tennessee. Qualified in 1997, 29 years ago. Practices with Northwest Iowa Hospital Corporation, a 132-clinician group. Licensed in Kentucky and Tennessee.

Years since qualifying
29
Licensed in
KY, TN
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

975 E 3rd St Box 376
Chattanooga, TN 37403-2147
Phone: (423) 778-6213
Fax: (423) 778-6299
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 42935 (KY)
Pediatric Radiology Physician Taxonomy 2085P0229X · Licence 42935 (KY)
Pediatric Radiology Physician Taxonomy 2085P0229X · Licence 50372 (TN)

Record details

NPI number1508942319
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 27, 2006
Last updated in NPPESOctober 4, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Northwest Iowa Hospital Corporation — 132 clinicians
Accepts Medicare assignment Not indicated
Practice locations8 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,856
Services billed 4,722 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Northwest Iowa Hospital Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 132 clinicians in the practice; 12 are shown here.

Other providers in Chattanooga