Thaddeus Ivory Lancaster, MD
Obstetrics & Gynecology Physician · Duluth, GA
Thaddeus Ivory Lancaster, MD is an obstetrics & gynecology physician with a practice address in Duluth, Georgia, and NPI 1316904923, issued on Apr 27, 2006. Check the license (Georgia 73192, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thaddeus Ivory Lancaster
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 73192 GA
073192 MD
Self-reported in NPPES; status is on the state search - Practice location
- 3855 Pleasant Hill RD Ste 100, Duluth, GA 30096
- Phone
- (678) 312-7800
- Enumerated
- Apr 27, 2006
- Record last updated
- Jan 18, 2022
- Fax
- (678) 312-7818
- Medicare enrollment
- Enrolled (PECOS I20150701002242); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,430 in Georgia → Look up another NPI →
Also registered at 3855 Pleasant Hill RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amber Berry, MDPediatrics Physician1295222933
- Brandon Gray, M.D.Family Medicine Physician1093177107
- Michael Kim, M.D.Family Medicine Physician1407176852
- Genevieve Slaughter, NP-CFamily Nurse Practitioner1972929172
Verify Thaddeus Ivory Lancaster in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 73192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
11 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Bills Medicare through one group practice
- The Southeast Permanente Medical GroupAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thaddeus Ivory Lancaster among 1,430 obstetrics & gynecology physician records in Georgia
Thaddeus Ivory Lancaster, MD is one of 1,430 obstetrics & gynecology physician records with a practice address in Georgia. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 50% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2002 · median 2004 among the 839 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 obstetrics & gynecology physician records list a practice address in Duluth
They are 19 of the 1,766 NPPES records with a practice address in Duluth, and 1,430 obstetrics & gynecology physician records in Georgia.
All 1,430 in Georgia → Every provider in Duluth → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Harpreet Brar, M.D.Duluth, GA 300961982969879
- Linda Brownlee, MDDuluth, GA 300961487763595
- Xuan Cao, M.D.Duluth, GA 300961780856740
- Ursula Carter, MDDuluth, GA 300961700836574
- Andrea Christian Parks, MD/MBADuluth, GA 300961326054909
- Michelle Covalt, MDDuluth, GA 300961902024797
- Seema FaiyazDuluth, GA 300961962663666
- Carl Harms, MDDuluth, GA 300961417031212
Common questions
What is Thaddeus Ivory Lancaster, MD's NPI number?
Thaddeus Ivory Lancaster, MD's National Provider Identifier (NPI) is 1316904923, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thaddeus Ivory Lancaster, MD located?
The NPPES record lists a practice address at 3855 Pleasant Hill RD Ste 100, Duluth, GA, 30096. Phone: (678) 312-7800. Providers update this record themselves, so call before visiting.
How can I verify Thaddeus Ivory Lancaster, MD's license?
NPPES lists Georgia license number 73192, 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 Thaddeus Ivory Lancaster, MD prescribe under Medicare Part D?
In 2024, Thaddeus Ivory Lancaster, MD had 11 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.