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

Dr. Spencer Callaghan, MD

Individual provider Internal Medicine Physician · NPI 1124695838

Dr. Spencer Callaghan, MD practises Internal Medicine in Augusta, Georgia. Graduated from Mercer University School of Medicine in 2021, 5 years ago. Practices with Wellstar Medical Group LLC, a 3,072-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
5
Trained at
Mercer University School of Medicine
Licensed in
GA
In the registry since
2021
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

1120 15th St
Augusta, GA 30912-0006
Phone: (706) 721-8623
Fax: (706) 721-1459
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 100215 (GA)

Record details

NPI number1124695838
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2021
Last updated in NPPESAugust 1, 2024
Certification dateAugust 1, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMERCER UNIVERSITY SCHOOL OF MEDICINE
Graduated 2021 (5 years in practice)
Group practice Wellstar Medical Group Llc — 3072 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients48
Services billed 115 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Wellstar Medical Group LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3072 clinicians in the practice; 12 are shown here.

Other providers in Augusta