Dr. Robert B. Moghimi, M.D.
Gastroenterology (Gastroenterology Physician)
1156 Swallow Ln
Simi Valley, CA 93065
Who else practices at this address →
Ventura County includes mental health (9% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 26
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 1,337
Licensed in California since 2006, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
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
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
CA license A94790 (first issued 2006; current)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Henry Mayo Newhall Hospital Valencia, CA
- Adventist Health Simi Valley Simi Valley, CA
- Providence Holy Cross Medical Center Mission Hills, CA
- Sherman Oaks Hospital Sherman Oaks, CA
- Encino Hospital Medical Center Encino, CA
Medical groups
- North Valley G I Consultants (2 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
- 1,337
- Services billed
- 3,061
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 20-29 minutes | 726 | 429 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 644 | 560 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 367 | 349 |
| New patient office or other outpatient visit, 45-59 minutes | 358 | 358 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 316 | 178 |
| Biopsy of large bowel using a flexible endoscope | 148 | 147 |
| Diagnostic exam of large bowel using a flexible endoscope | 133 | 132 |
| Insertion of stomach tube using a flexible endoscope | 120 | 110 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 112 | 110 |
| New patient office or other outpatient visit, 30-44 minutes | 67 | 67 |
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 |
|---|---|
| Omeprazole Other prescribers in Simi Valley, CA | 1,188 |
| Pantoprazole Sodium Other prescribers in Simi Valley, CA | 508 |
| Gavilyte-C (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Simi Valley, CA | 424 |
| Linzess (linaclotide) Other prescribers in Simi Valley, CA | 216 |
| Famotidine Other prescribers in Simi Valley, CA | 200 |
| Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Simi Valley, CA | 161 |
| Diphenoxylate-Atropine (diphenoxylate hcl/atropine) Other prescribers in Simi Valley, CA | 95 |
| Metoclopramide Hcl Other prescribers in Simi Valley, CA | 89 |
| Sod Sulf-Potass Sulf-Mag Sulf (sodium, potassium,mag sulfates) Other prescribers in Simi Valley, CA | 86 |
| Sucralfate Other prescribers in Simi Valley, CA | 84 |
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, 15 companies reported 110 payments worth $1,892 in total to this clinician.
| AbbVie Inc. | $858 |
|---|---|
| Madrigal Pharmaceuticals | $246 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $219 |
| Janssen Biotech, Inc. | $155 |
| Phathom Pharmaceuticals, Inc. | $70.03 |
| Lilly USA, LLC | $65.23 |
| Boston Scientific Corporation | $54.89 |
| Vivus LLC | $44.96 |
| Food and Beverage | $1,892 |
|---|
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 4 industry-funded studies in 2025, from 3 companies. The companies reported $110,668 in research payments for these studies, mostly to the institutions running them.
- A Study to Assess Adverse Events and Change in Disease Activity of Risankizumab Subcutaneous Induction Treatment for Moderately to Severely Active Crohn's Disease.
AbbVie Inc. · Active, not recruiting · NCT06063967 - UC P3: Double-Blind Treat Straight Through
Genentech, Inc. - Study to Assess Rifaximin Soluble Solid Dispersion (SSD) for the Delay of Encephalopathy Decompensation in Cirrhosis (RED-C-3132)
Bausch Health US, LLC - M23-784 - A Study to Assess Adverse Events and Change in Disease Activity of Risankizumab Subcutaneous Induction Treatment for Moderately to Severely Active Crohn s Disease
AbbVie Inc.
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.