Geoffrey J. Flattmann, MD
NPI 1801845136ActiveIndividual· Specialist· Natchez, MS
Specialist (MD) in Natchez, Mississippi, trained at Louisiana State University School of Medicine in New Orleans (class of 1995). 254 Medicare patients in 2024, $114,117 paid; nearly all of their 272 Part D prescriptions were generic (99%). Intuitive Surgical, Inc. was the largest of 4 companies reporting payments in 2025, $14,830 in all, mostly education.
Overview
| NPI | 1801845136 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 5, 2006 |
| Last updated in NPPES | Feb 9, 2022 |
| Certified by provider | Feb 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 16771 | MS |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (LA); Practitioner - General Surgery (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 254 |
|---|---|
| Services billed | 673 across 91 procedure codes |
| Paid by Medicare | $114,117 |
Part D prescriptions in 2024
| Prescriptions (claims) | 272 · 290 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $1,415 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in New Orleans |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | General Surgery |
Medical group
- Natchez Clinic Company LLCNatchez, MS · 9 clinicians
Hospital affiliations
- Merit Health NatchezNatchez, MS
- Riverland Medical CenterFerriday, LA
Industry payments (Open Payments)
- 2025$14,830 · 10 payments from 4 companies
- 2024$9,881 · 13 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $14,750 | 7 |
| Conmed Corporation | $41.67 | 1 |
| Merck Sharp & Dohme LLC | $19.39 | 1 |
| Sanara Medtech Inc. | $18.86 | 1 |
What the 2025 payments were for
- Education$12,000 · 3 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,000 · 1 payment
- Food and Beverage$829.92 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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