Dr. Robert C. Holladay, M.D.
Pulmonology (Pulmonary Disease Physician)
- Medicare participating
At a glance
- Medical school
- Louisiana State University School of Medicine in Shreveport (1988)
- Years since graduation
- 38
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 304
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 1988Medical school: Louisiana State University School of Medicine in Shreveport
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Pulmonary Disease Physician primary
LA license 020136 -
Cardiovascular Disease Physician
LA license MD.020136 -
Internal Medicine Physician
LA license MD.020136
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Willis Knighton Medical Center Shreveport, LA
- Ochsner Lsu Health Shreveport Shreveport, LA
- Ochsner Lsu Health Shreveport-St Mary Medical Cent Shreveport, LA
- Ochsner Lsu Health Monroe Monroe, LA
- Natchitoches Regional Medical Center Natchitoches, LA
Medical groups
- Lsu Health Sciences Center Shreveport Faculty Group Practice (571 clinicians)
- Nrmc Physician Ipa Inc (30 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 304
- Services billed
- 943
- Patients’ average age
- 71
| Service | Times | Patients |
|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 203 | 58 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 197 | 57 |
| Established patient office or other outpatient visit, 30-39 minutes | 169 | 103 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 166 | 48 |
| Established patient office or other outpatient visit, 20-29 minutes | 70 | 56 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 26 | 26 |
| Test to measure rate of airflow | 18 | 18 |
| Critical care, first 30-74 minutes | 18 | 13 |
| Irrigation and suction of lung airways to obtain cells using an endoscope | 13 | 13 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 12 | 12 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Trelegy Ellipta (fluticasone/umeclidin/vilanter) Other prescribers in Shreveport, LA | 132 |
| Albuterol Sulfate Hfa (albuterol sulfate) Other prescribers in Shreveport, LA | 110 |
| Prednisone Other prescribers in Shreveport, LA | 51 |
| Fluticasone Propionate Other prescribers in Shreveport, LA | 46 |
| Montelukast Sodium Other prescribers in Shreveport, LA | 44 |
| Azithromycin Other prescribers in Shreveport, LA | 42 |
| Combivent Respimat (ipratropium/albuterol sulfate) Other prescribers in Shreveport, LA | 39 |
| Breztri Aerosphere (budesonide/glycopyr/formoterol) Other prescribers in Shreveport, LA | 36 |
| Ipratropium Bromide Other prescribers in Shreveport, LA | 33 |
| Spiriva Handihaler (tiotropium bromide) Other prescribers in Shreveport, LA | 24 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 29 companies reported 143 payments worth $4,637 in total to this clinician.
| Intuitive Surgical, Inc. | $1,920 |
|---|---|
| AstraZeneca Pharmaceuticals LP | $538 |
| Actelion Pharmaceuticals US, Inc. | $458 |
| GlaxoSmithKline, LLC. | $239 |
| Merck Sharp & Dohme LLC | $158 |
| Verona Pharma, Inc. | $146 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $124 |
| Insmed, Inc. | $97.14 |
| Food and Beverage | $2,717 |
|---|---|
| Travel and Lodging | $1,920 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Intuitive Surgical, Inc. Dec 16, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ATLANTA, GA · in-kind | $1,072 |
| Intuitive Surgical, Inc. Dec 22, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ATLANTA, GA · in-kind | $612 |
| Intuitive Surgical, Inc. Dec 20, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to GAINESVILLE, GA · in-kind | $187 |
| Intuitive Surgical, Inc. Dec 17, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ATLANTA, GA · in-kind | $30.00 |
| Intuitive Surgical, Inc. Dec 16, 2025 | Travel and Lodging Da Vinci Surgical System · SURGERY · travel to ATLANTA, GA · in-kind | $19.00 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $15,340 in research payments for these studies, mostly to the institutions running them.
- STRIVE Post-Market Registry Study
Gyrus Acmi, Inc. · Recruiting · NCT04302272
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.