Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Garrett Walker Colby, MD

Individual provider Diagnostic Radiology Physician · NPI 1003018870

Garrett Walker Colby, MD practises Diagnostic Radiology in Birmingham, Alabama. Graduated from University of Alabama School of Medicine in 2006, 20 years ago. Practices with Synergy Radiology LLC, a 75-clinician group and works from 3 locations. Licensed in Alabama.

Years since qualifying
20
Trained at
University of Alabama School of Medicine
Licensed in
AL
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

619 19th St S Jt N342
Birmingham, AL 35249-6830
Phone: (205) 934-3108
Fax: (205) 975-4413
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (2)

  • 2624 Dawson Rd, Albany, GA 31707-1609 — (229) 888-1624
  • 1241 Assembly St Ste B, Columbia, SC 29201-3121 — (803) 766-3009

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 28517 (AL)

Record details

NPI number1003018870
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 4, 2007
Last updated in NPPESAugust 4, 2026
Certification dateAugust 4, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF ALABAMA SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Synergy Radiology Llc — 75 clinicians
Accepts Medicare assignment Not indicated
Practice locations5 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 patients1,416
Services billed 4,381 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

Colleagues at Synergy Radiology LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 75 clinicians in the practice; 12 are shown here.

Other providers in Birmingham