DR. THADDEUS IVORY LANCASTER MD
NPI 1316904923
Obstetrics & Gynecology in Duluth, GA
About Dr. Thaddeus Ivory Lancaster Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THADDEUS IVORY LANCASTER MD (NPI 1316904923) is an individual obstetrics & gynecology provider in Duluth, Georgia, licensed in Georgia (73192) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of Meharry Medical College School Of Medicine (2002).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Thaddeus Ivory Lancaster Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Thaddeus Lancaster reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Duluth, GA 30096
- Reassigned Medicare billing, Georgia enrollment
- Medicare enrollment name: Gwinnett Hospital System, Inc.
- 98 clinicians in this Medicare group
Lawrenceville, GA 30046
- Reassigned Medicare billing, Georgia enrollment
- 41 clinicians in this Medicare group
Atlanta, GA 30305
- Reassigned Medicare billing, Georgia enrollment
- 1,389 clinicians in this Medicare group
Athens, GA 30606
- Reassigned Medicare billing, Georgia enrollment
- 208 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 30096 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Thaddeus Lancaster's NPI number?
The NPI number for Thaddeus Lancaster is 1316904923. It was assigned to this individual provider in the NPPES registry on April 27, 2006.
Where is Thaddeus Lancaster located?
Thaddeus Lancaster practices at 3855 Pleasant Hill Rd Ste 100, Duluth, GA 30096. The listed phone number is (678) 312-7800.
What is Thaddeus Lancaster's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Thaddeus Lancaster enrolled in Medicare?
Yes. Thaddeus Lancaster is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thaddeus Lancaster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thaddeus Lancaster reassigns Medicare benefits to 4 organizations: Northside Hospital, Inc. (Duluth, GA), Gwinnett Hospital System Gme, LLC (Lawrenceville, GA), The Southeast Permanente Medical Group (Atlanta, GA) and Obhg Georgia, P.C. (Athens, GA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Thaddeus Lancaster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thaddeus Lancaster accept?
Health plans from Oscar Insurance Company list Thaddeus Lancaster as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Thaddeus Lancaster was last updated on January 18, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Thaddeus Ivory Lancaster, MD · NPI 1316904923
Obstetrics & Gynecology physician in Duluth, Georgia. Individual provider, active in the CMS NPPES registry since April 27, 2006.
## Identity
- **NPI:** 1316904923 (Entity type: Individual)
- **Enumerated:** April 27, 2006
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** 73192 (Georgia)
- **Sole proprietor:** No
## Practice location
- **Address:** 3855 PLEASANT HILL RD STE 100, Duluth, GA 30096-8030
- **Phone:** (678) 312-7800 · **Fax:** (678) 312-7818
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Northside Hospital, Inc. (NPI 1790715381, Duluth, GA); Gwinnett Hospital System Gme, LLC (NPI 1780076927, Lawrenceville, GA); The Southeast Permanente Medical Group (NPI 1245266956, Atlanta, GA); Obhg Georgia, P.C. (NPI 1750686838, Athens, GA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Meharry Medical College School Of Medicine, class of 2002
## Record status
- **NPPES last updated:** January 18, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1316904923) · Data from the CMS NPPES public registry.