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

Dr. Colby T Chastain, MD

Individual provider Diagnostic Radiology Physician · NPI 1922056217

Dr. Colby T Chastain, MD is a Diagnostic Radiology in Gainesville, Georgia. Graduated from Medical College of Georgia School of Medicine in 1998, 28 years ago. Practices with Gainesville Radiology Group PC, a 69-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
28
Trained at
Medical College of Georgia School of Medicine
Licensed in
GA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 W Academy St
Gainesville, GA 30501
Phone: (770) 282-8820
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 1270 Friendship Rd, Braselton, GA 30517-5630 — (770) 718-1122
  • 801 Austin Dr, Demorest, GA 30535-4513 — (770) 718-1122
  • 835 Austin Dr, Demorest, GA 30535-4513 — (770) 718-1122
  • 725 Jesse Jewell Pkwy Se, Gainesville, GA 30501-3834 — (770) 718-1122
  • 655 Jesse Jewell Pkwy Se, Gainesville, GA 30501-3756 — (770) 718-1122

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 047968 (GA)

Record details

NPI number1922056217
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESSeptember 23, 2025
Certification dateSeptember 23, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolMEDICAL COLLEGE OF GEORGIA SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice Gainesville Radiology Group Pc — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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