Dr. Wallace Duncan, MD
- Medicare services, 2024
- 451
- Medicare patients, 2024
- 87
- Part D claims, 2024
- 10,066
- Hospital affiliations
- 2
- Industry payments
- $583
- Practice address
- 2801 Dekalb Medical Parkway, Lithonia, GA 30058
- Practice phone
- Call (404) 501-8040
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Duncan's professional email, personal email and mobile number
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Dr. Wallace Duncan is an internist in Lithonia, Georgia
Dr. Duncan practices at Emory Hillandale Hospital in Lithonia, Georgia, part of Emory University.
Dr. Duncan's NPI, 1821153529, was assigned on December 25, 2006. Dr. Duncan graduated from Morehouse School of Medicine in 1992. Dr. Duncan holds Georgia license 041109.
- NPI
- 1821153529NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002707601
- NPI enumeration date
- December 25, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (404) 501-8040
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Wallace Duncan practices at Emory Hillandale Hospital in Lithonia, Georgia
Dr. Duncan's primary practice is Emory Hillandale Hospital, at 2801 Dekalb Medical Parkway, Lithonia, GA 30058 in De Kalb County. The practice phone is (404) 501-8040.
- Emory Hillandale Hospital2801 Dekalb Medical Parkway, Lithonia, GA 30058 · De Kalb CountyPhone(404) 501-8040
Source: Dmand AI Affiliation Data
Dr. Wallace Duncan is affiliated with 5 sites of care and 1 medical group
Dr. Duncan's primary practice is Emory Hillandale Hospital in Lithonia, Georgia, part of Emory University. Dr. Duncan is also affiliated with Emory University Hospital. The medical group on file is Privia Medical Group, Georgia. Dmand AI also links Dr. Duncan to 1 more physician office, 1 group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Wallace Duncan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duncan practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emory Hillandale Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Emory University and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Wallace Duncan is one of 3,575 internists in Georgia
Internal medicine is Dr. Duncan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Duncan is licensed in Georgia.
Specialties and state licenses
- Internal medicine, GeorgiaPrimary
Internists near Dr. Duncan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Wallace Duncan billed Medicare for 451 services in 2024
CMS data shows 451 Medicare services from Dr. Duncan across 5 procedure codes in 2024, for 87 Medicare patients. Medicare paid $24,235 for them. Every service was in an office.
Dr. Duncan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3042024: 24220%
- Surgery
- 2023: 1812024: 1716%
- Other services
- 2023: 552024: 3831%
Dr. Duncan compared with the Georgia median for internists, 2024
- Dr. Duncan
- Georgia median
- Medicare services
- 451vs 53616% below
- Medicare patients
- 87vs 19455% below
- Part D claims
- 9,189vs 33927.1 times
Medians across 3,344 internists in Georgia with Dmand AI profiles that report each measure.
Dr. Duncan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duncan and other internists in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Wallace Duncan treated 87 Medicare patients in 2024, average age 71
CMS counts 87 Medicare patients who saw Dr. Duncan in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.35, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duncan's median patient age at 69, with 57% women.
Dr. Duncan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Duncan's Medicare patients by sex, 2024
- Women4653%
- Men4147%
Chronic conditions among Dr. Duncan's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Diabetes45%
- Chronic kidney disease24%
- Cancer22%
- Heart failure16%
- Anxiety14%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duncan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Wallace Duncan wrote 10,066 Medicare Part D claims in 2024
In 2024, Dr. Duncan wrote 10,066 Medicare Part D claims for 555 patients. 89% of them were for generic drugs. CMS names the drug for 9,189 of them, across 151 drugs with 11 or more claims each, at $663,080 in total drug cost. In 2023, CMS named 9,470 claims across 161 drugs.
Dr. Duncan's Part D claims by kind of drug, 2024
- Generic8,960 claims89%
- Brand-name980 claims10%
- Other126 claims1%
Dr. Duncan's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Duncan's Part D claims, 2024
- Opioids8%848 of 10,066 claims
- Antibiotics5%492 of 10,066 claims
- Antipsychotics, patients 65 and over0%18 of 10,066 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9,4702024: 9,1893%
Drugs named by CMS: 151 in 2024, 161 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Wallace Duncan takes part in Medicare
Dr. Duncan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Wallace Duncan received $583 in industry payments from 2016 to 2020
CMS Open Payments shows 27 general payments to Dr. Duncan from 15 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 90% of the total. Janssen Pharmaceuticals, Inc paid the most, $120.
General payments to Dr. Duncan by program year, 2016 to 2020
General payments to Dr. Duncan by kind, 2016 to 2020
- Food and beverage$52790%
- Education$5610%
Companies that paid Dr. Duncan the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Wallace Duncan graduated from Morehouse School of Medicine
Dr. Duncan graduated from Morehouse School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Wallace Duncan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Wallace Duncan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Wallace Duncan's NPI number?
Dr. Wallace Duncan's NPI number is 1821153529. It was assigned on December 25, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Wallace Duncan?
Dr. Wallace Duncan is an internist in Lithonia, Georgia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Wallace Duncan practice?
Dr. Duncan practices at 2801 Dekalb Medical Parkway, Lithonia, GA 30058. Dr. Duncan's primary practice is Emory Hillandale Hospital in Lithonia, Georgia, part of Emory University. Dmand AI also links Dr. Duncan to 1 physician office, 1 group practice or clinic and 1 home health agency.
What is Dr. Wallace Duncan's office phone number?
The practice phone on file for Dr. Duncan is (404) 501-8040.
What is Dr. Wallace Duncan's medical license number?
Dr. Duncan holds Georgia license 041109.
Which hospitals is Dr. Wallace Duncan affiliated with?
Dr. Duncan practices at Emory Hillandale Hospital in Lithonia, Georgia. Dr. Duncan is also affiliated with Emory University Hospital.
What medical group is Dr. Wallace Duncan part of?
Dr. Duncan is linked to Privia Medical Group, Georgia.
Does Dr. Wallace Duncan accept Medicare?
Yes. CMS data shows Dr. Duncan billed Medicare for 451 services in 2024, and Dr. Duncan accepts Medicare assignment.
How many Medicare patients does Dr. Wallace Duncan see?
CMS counts 87 Medicare patients who saw Dr. Duncan in 2024, with an average age of 71.
What services does Dr. Wallace Duncan bill to Medicare?
In 2024, Dr. Duncan's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and care management and other visits (99497).
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Where did Dr. Wallace Duncan go to medical school?
Dr. Duncan graduated from Morehouse School of Medicine in 1992.
What drugs does Dr. Wallace Duncan prescribe most?
In 2024 Medicare Part D data, Dr. Duncan's most prescribed drugs by claims were Oxycodone-Acetaminophen, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Wallace Duncan received payments from drug or device companies?
CMS Open Payments shows $583 in general payments to Dr. Duncan from 15 companies from 2016 to 2020. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Wallace Duncan been practicing?
Dr. Duncan graduated from medical school in 1992, 34 years ago.
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