Roan L. Flenniken, MD
NPI 1023012960ActiveIndividual· Internal Medicine· Shreveport, LA
Internal Medicine (MD) in Shreveport, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 1983). In 2024 Medicare paid $1,181,209 for 810 patients, and Part D covered 13,498 of their prescriptions, 88% of them generic. Lilly USA, LLC was the largest of 23 companies reporting payments in 2025, $1,527 in all, mostly food and beverage.
Overview
| NPI | 1023012960 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 9, 2005 |
| Last updated in NPPES | Dec 11, 2020 |
| Certified by provider | Dec 11, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 017132 | LA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 810 |
|---|---|
| Services billed | 64,393 across 164 procedure codes |
| Paid by Medicare | $1,181,209 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,498 · 29,158 30-day fills |
|---|---|
| Patients | 758 |
| Total drug cost | $1,068,409 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
Medical groups
- Cornerstone Therapy and Balance Center, LLCShreveport, LA · 94 clinicians
- Highland Clinic, A Prof Med CorpShreveport, LA · 66 clinicians
Hospital affiliation
- Christus Shreveport-Bossier Health SystemShreveport, LA
Other facilities
- Christus Homecare Shreveport-BossierHome health agency · Shreveport, LA
- Vitalcaring GroupHome health agency · Bossier City, LA
Industry payments (Open Payments)
- 2025$1,527 · 87 payments from 23 companies
- 2024$1,259 · 72 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $213.33 | 12 |
| Abbvie Inc. | $198.54 | 17 |
| Novo Nordisk Inc | $185.92 | 11 |
| Astrazeneca Pharmaceuticals LP | $127.93 | 7 |
| Dexcom, Inc. | $114.28 | 5 |
What the 2025 payments were for
- Food and Beverage$1,527 · 87 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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