Dr. Robert P. Aran, D.O.
Gastroenterology (Gastroenterology Physician)
- Medicare participating
At a glance
- Medical school
- Oklahoma State University College of Osteopathic Medicine (2017)
- Years since graduation
- 9
- In the NPI registry since
- 2017
- Medicare patients seen, 2024
- 565
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. What an NPI is
Education and training
- 2017Medical school: Oklahoma State University College of Osteopathic Medicine
- 2017Registered with an NPI (national billing number; not a license date)
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
-
Gastroenterology Physician primary
OK license 6354
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Saint Francis Hospital, Inc Tulsa, OK
- Saint Francis Hospital South, LLC Tulsa, OK
- Saint Francis Hospital Muskogee Muskogee, OK
Medical groups
- Warren Clinic Inc (883 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
- 565
- Services billed
- 1,269
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 71 | 69 |
| New patient office or other outpatient visit, 45-59 minutes | 39 | 39 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 34 | 33 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 23 | 22 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 20 | 20 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 13 | 13 |
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 |
|---|---|
| Pantoprazole Sodium Other prescribers in Tulsa, OK | 171 |
| Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Tulsa, OK | 117 |
| Peg-3350 And Electrolytes (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Tulsa, OK | 86 |
| Omeprazole Other prescribers in Tulsa, OK | 73 |
| Linzess (linaclotide) Other prescribers in Tulsa, OK | 53 |
| Creon (lipase/protease/amylase) Other prescribers in Tulsa, OK | 31 |
| Esomeprazole Magnesium Other prescribers in Tulsa, OK | 27 |
| Trulance (plecanatide) | 22 |
| Xifaxan (rifaximin) Other prescribers in Tulsa, OK | 22 |
| Spironolactone Other prescribers in Tulsa, OK | 22 |
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, 18 companies reported 87 payments worth $1,489 in total to this clinician.
| AbbVie Inc. | $537 |
|---|---|
| Pfizer Inc. | $271 |
| Gilead Sciences, Inc. | $139 |
| Janssen Scientific Affairs, LLC | $108 |
| Madrigal Pharmaceuticals | $93.47 |
| Janssen Biotech, Inc. | $55.33 |
| Phathom Pharmaceuticals, Inc. | $44.03 |
| Intercept Pharmaceuticals, Inc. | $30.69 |
| Food and Beverage | $1,489 |
|---|
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.