Robert C. Holladay, M.D.
NPI 1124023668ActiveIndividual· Internal Medicine, Pulmonary Disease· Shreveport, LA
Internal Medicine, Pulmonary Disease (M.D.) in Shreveport, Louisiana, trained at Louisiana State University School of Medicine in Shreveport (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $470,802 for 944 claims, against $70,058 paid for services in 2024. Intuitive Surgical, Inc. was the largest of 29 companies reporting payments in 2025, $4,637 in all, mostly food and beverage.
Overview
| NPI | 1124023668 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2005 |
| Last updated in NPPES | Feb 12, 2025 |
| Certified by provider | Feb 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 020136 | LA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD.020136 | LA |
| Internal Medicine | 207R00000X | MD.020136 | LA |
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 - Pulmonary Disease (LA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 304 |
|---|---|
| Services billed | 943 across 46 procedure codes |
| Paid by Medicare | $70,058 |
Part D prescriptions in 2024
| Prescriptions (claims) | 944 · 1,361 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $470,802 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Louisiana State University School of Medicine in Shreveport |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Lsu Health Sciences Center Shreveport Faculty Group PracticeShreveport, LA · 571 clinicians
- Nrmc Physician IPA IncNatchitoches, LA · 30 clinicians
Hospital affiliations
- Natchitoches Regional Medical CenterNatchitoches, LA
- Ochsner Lsu Health MonroeMonroe, LA
- Ochsner Lsu Health ShreveportShreveport, LA
- Ochsner Lsu Health Shreveport-St Mary Medical CentShreveport, LA
- Willis Knighton Medical CenterShreveport, LA
Other facilities
- Pam Health Specialty Hospital of ShreveportLong-term care hospital · Shreveport, LA
Industry payments (Open Payments)
- 2025$4,637 · 149 payments from 29 companies
- 2024$2,091 · 113 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $1,920 | 5 |
| Astrazeneca Pharmaceuticals LP | $537.64 | 34 |
| Actelion Pharmaceuticals US, Inc. | $457.66 | 28 |
| Glaxosmithkline, LLC. | $239.49 | 13 |
| Merck Sharp & Dohme LLC | $158.38 | 8 |
What the 2025 payments were for
- Food and Beverage$2,717 · 144 payments
- Travel and Lodging$1,920 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 pulmonologists in Shreveport · All pulmonologists in Louisiana