Colby T. Chastain, M.D.
Diagnostic Radiology Physician · Gainesville, GA
Colby T. Chastain, M.D. is a diagnostic radiology physician with a practice address in Gainesville, Georgia, and NPI 1922056217, issued on May 5, 2006. Check the license (Georgia 047968, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Colby T. Chastain
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 047968 GA
Self-reported in NPPES; status is on the state search - Practice location
- 200 W Academy Street, Gainesville, GA 30501
- Phone
- (770) 282-8820
- Enumerated
- May 5, 2006
- Record last updated
- Sep 23, 2025
- Medicaid IDs
- 526093704B GA
526093704E GA - Medicare enrollment
- Enrolled (PECOS I20040624000500); accepts Medicare assignment
- Medical or professional school
- Medical College Of Georgia School Of Medicine, 1998
- Entity
- Type 1 · individual
Also registered at 200 W Academy Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Balotin, M.D.Diagnostic Radiology Physician1205924537
- Steven Black, M.D.Diagnostic Radiology Physician1609808369
- Richard Cory, MDDiagnostic Radiology Physician1134101116
- Trevor Hooper, M.D.Diagnostic Radiology Physician1235197427
- Jon Horn, MDDiagnostic Radiology Physician1376599548
- Bart Kimbrell, M.D.Diagnostic Radiology Physician1922319599
Verify Colby T. Chastain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 047968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Atlantic Radiology Associates LLCHilton Head, SC
- Gainesville Radiology Group PCGainesville, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
49 diagnostic radiology physician records list a practice address in Gainesville
They are 49 of the 2,998 NPPES records with a practice address in Gainesville, and 1,065 diagnostic radiology physician records in Georgia.
All 49 in Gainesville → All 1,065 in Georgia → Every provider in Gainesville →
Other diagnostic radiology physician records in Georgia
- William Abbott, MDAlbany, GA1760489744
- John Abernathy, MDColumbus, GA1780678573
- Jacob Abraham, MDAtlanta, GA1144271800
- Benjamin Adams, DOAtlanta, GA1730640673
- Timothy Adams, M.D.Evans, GA1558700088
- Neha AgrawalGainesville, GA1093058562
- Absar Ahmed, M.D.Atlanta, GA1144435124
- Asmaa AhmedAugusta, GA1730680570
- Mohamed Tarek Ahmed, MD, MSCAtlanta, GA1922627488
- Michael Aho, MDSnellville, GA1477729051
Common questions
What is Colby T. Chastain, M.D.'s NPI number?
Colby T. Chastain, M.D.'s National Provider Identifier (NPI) is 1922056217, issued on May 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Colby T. Chastain, M.D. located?
The NPPES record lists a practice address at 200 W Academy Street, Gainesville, GA, 30501. Phone: (770) 282-8820. Providers update this record themselves, so call before visiting.
How can I verify Colby T. Chastain, M.D.'s license?
NPPES lists Georgia license number 047968, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Colby T. Chastain, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.