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

Dr. Wallace Duncan, MD

Individual provider Internal Medicine Physician · NPI 1821153529

Dr. Wallace Duncan, MD practises Internal Medicine in Lithonia, Georgia. Graduated from Morehouse School of Medicine in 1992, 34 years ago. Practices with Privia Medical Group of Georgia LLC, a 450-clinician group and accepts Medicare assignment. Licensed in Georgia.

Years since qualifying
34
Trained at
Morehouse 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

5900 Hillandale Dr Anx E
Lithonia, GA 30058-3802 Not confirmed with CMS for 15 years — call before visiting
Phone: (770) 987-8400
Fax: (770) 987-8494
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 041109 (GA)

Record details

NPI number1821153529
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 25, 2006
Last updated in NPPESOctober 17, 2011

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMOREHOUSE SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Privia Medical Group Of Georgia Llc — 450 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients87
Services billed 535 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. Those with a page here are linked.

  • Emory University Hospital Hospital · Atlanta, GA
  • Emory Hillandale Hospital Hospital · Lithonia, GA
  • Central Home Health Care, An Amedisys Company Home health agency · Tucker, GA

Colleagues at Privia Medical Group of Georgia LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 450 clinicians in the practice; 12 are shown here.

Other providers in Lithonia