GEOFFREY J FLATTMANN MD FACS PLLC
NPI 1710177035
Specialist in Natchez, MS
About Geoffrey J Flattmann Md Facs Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GEOFFREY J FLATTMANN MD FACS PLLC (NPI 1710177035) is a healthcare organization registered as a specialist in Natchez, Mississippi and active in the NPI registry since August 2007. The organization lists Geoffrey J Flattmann, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Geoffrey J Flattmann Md Facs Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by March 31, 2027
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Geoffrey J Flattmann MD Facs PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Geoffrey J Flattmann MD Facs PLLC's NPI number?
The NPI number for Geoffrey J Flattmann MD Facs PLLC is 1710177035. It was assigned to this organization in the NPPES registry on August 1, 2007.
Where is Geoffrey J Flattmann MD Facs PLLC located?
Geoffrey J Flattmann MD Facs PLLC is located at 142 Jeff Davis Blvd Suite A, Natchez, MS 39120. The listed phone number is (601) 445-8667.
What is Geoffrey J Flattmann MD Facs PLLC's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Geoffrey J Flattmann MD Facs PLLC enrolled in Medicare?
Yes. Geoffrey J Flattmann MD Facs PLLC is registered in the Medicare PECOS enrollment system.
When is Geoffrey J Flattmann MD Facs PLLC's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Mississippi, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Geoffrey J Flattmann MD Facs PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Geoffrey J Flattmann MD Facs PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Geoffrey J Flattmann MD Facs PLLC accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter of Alabama and Ambetter of Tennessee list Geoffrey J Flattmann MD Facs PLLC 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 Geoffrey J Flattmann MD Facs PLLC was last updated on February 9, 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.
# Geoffrey J Flattmann Md Facs Pllc · NPI 1710177035
Specialist organization in Natchez, Mississippi. Organization record, active in the CMS NPPES registry since August 1, 2007.
## Identity
- **NPI:** 1710177035 (Entity type: Organization)
- **Enumerated:** August 1, 2007
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Geoffrey Flattmann, OWNER
## Practice location
- **Address:** 142 JEFF DAVIS BLVD, SUITE A, Natchez, MS 39120-5104
- **Phone:** (601) 445-8667
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** March 31, 2027 (Non-DME Part B, Mississippi, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (General Surgery) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 9, 2022
- **Other identifiers:** Medicaid 1684147 (LA); Other 433474739B (MS); Medicaid 00122080 (MS); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1710177035) · Data from the CMS NPPES public registry.