Dr. Mark Wegmann, M.D.
Gastroenterology (Gastroenterology Physician)
4228 Houma Blvd, Suite 520
Metairie, LA 70006
Who else practices at this address →
Jefferson Parish includes primary care (18% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Louisiana State University School of Medicine in New Orleans (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 366
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
- 2001Medical school: Louisiana State University School of Medicine in New Orleans
- 2006Registered 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
-
Gastroenterology Physician primary
LA license 025641
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- East Jefferson General Hospital Metairie, LA
- West Jefferson Medical Center Marrero, LA
- Leonard J Chabert Medical Center Houma, LA
Medical groups
- Texas Digestive Disease Consultants, PLLC (608 clinicians)
- South Louisiana Medical Associates (113 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
- 366
- Services billed
- 3,241
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 180 | 22 |
| Established patient office or other outpatient visit, 20-29 minutes | 125 | 109 |
| Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 106 | 22 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 96 | 93 |
| Established patient office or other outpatient visit, 30-39 minutes | 76 | 68 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 73 | 48 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 52 | 52 |
| Biopsy of large bowel using a flexible endoscope | 42 | 42 |
| Established patient office or other outpatient visit, 10-19 minutes | 39 | 37 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 35 | 35 |
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 Metairie, LA | 591 |
| Omeprazole Other prescribers in Metairie, LA | 237 |
| Famotidine Other prescribers in Metairie, LA | 216 |
| Clenpiq (sod picosulf/mag ox/citric ac) | 206 |
| Linzess (linaclotide) Other prescribers in Metairie, LA | 149 |
| Ondansetron Hcl Other prescribers in Metairie, LA | 116 |
| Dicyclomine Hcl Other prescribers in Metairie, LA | 101 |
| Sutab (sod sulf/pot chloride/mag sulf) | 70 |
| Esomeprazole Magnesium Other prescribers in Metairie, LA | 49 |
| Cholestyramine Light (cholestyramine) Other prescribers in Metairie, LA | 46 |
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, 21 companies reported 183 payments worth $2,970 in total to this clinician.
| AbbVie Inc. | $867 |
|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $226 |
| Regeneron Healthcare Solutions, Inc. | $216 |
| Genzyme Corporation | $192 |
| Janssen Biotech, Inc. | $189 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $180 |
| Aimmune Therapeutics, Inc. | $158 |
| Ardelyx, Inc. | $142 |
| Food and Beverage | $2,970 |
|---|
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.