Sibyl Monique Duncan, M.D.
Family Medicine Physician · Lithonia, GA
Sibyl Monique Duncan, M.D. is a family medicine physician with a practice address in Lithonia, Georgia, and NPI 1912238023, issued on Jan 29, 2010. Check the license (Georgia 79439, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Sibyl Monique Duncan
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 79439 GA
Self-reported in NPPES; status is on the state search - Practice location
- 6000 Hillandale Dr Ste 100, Lithonia, GA 30058
- Phone
- (678) 418-1964
- Enumerated
- Jan 29, 2010
- Record last updated
- Nov 6, 2023
- Fax
- (404) 592-2042
- Medicare enrollment
- Enrolled (PECOS I20190905003545); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2009
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,951 in Georgia → Look up another NPI →
Verify Sibyl Monique Duncan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 79439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% more Medicare Part D claims than the average family medicine physician in 2024
6,678 Medicare Part D claims for 518 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 99 claims were for opioids.
Most prescribed
- Amlodipine Besylate413 claims
- Atorvastatin Calcium363 claims
- Metformin Hcl174 claims
- Lisinopril169 claims
- Hydrochlorothiazide135 claims
- Losartan Potassium126 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $512.46
29 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northside Primary Care Professional Services,llcSuwanee, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sibyl Monique Duncan among 3,951 family medicine physician records in Georgia
Sibyl Monique Duncan, M.D. is one of 3,951 family medicine physician records with a practice address in Georgia. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2009 · median 2005 among the 2,542 with a school on file
- Record last updated2023 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 family medicine physician records list a practice address in Lithonia
They are 26 of the 756 NPPES records with a practice address in Lithonia, and 3,951 family medicine physician records in Georgia.
All 3,951 in Georgia → Every provider in Lithonia → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Fiona Baldwin, M.DLithonia, GA 300581972799062
- Clarice Bell, M.D.Lithonia, GA 300581073533972
- Jerome Homish, D.O.Lithonia, GA 300581316991870
- Paula Jacob-Fox, MDLithonia, GA 300581679632251
- Daniel Lopez, M.D.Lithonia, GA 300581821296997
- Sarandeep Makkar, MD, DOLithonia, GA 300581487683157
- Sandra Maryman, MDLithonia, GA 300581619035821
- Jada Moore-Ruffin, MDLithonia, GA 300581447232103
Common questions
What is Sibyl Monique Duncan, M.D.'s NPI number?
Sibyl Monique Duncan, M.D.'s National Provider Identifier (NPI) is 1912238023, issued on Jan 29, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Sibyl Monique Duncan, M.D. located?
The NPPES record lists a practice address at 6000 Hillandale Dr Ste 100, Lithonia, GA, 30058. Phone: (678) 418-1964. Providers update this record themselves, so call before visiting.
How can I verify Sibyl Monique Duncan, M.D.'s license?
NPPES lists Georgia license number 79439, 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.
How much does Sibyl Monique Duncan, M.D. prescribe under Medicare Part D?
In 2024, Sibyl Monique Duncan, M.D. had 6,678 Medicare Part D claims for 518 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.