Dr. Patrick P. Sanvanson, MD
Gastroenterology (Gastroenterology Physician)
9200 W Wisconsin Ave, Divison Of Gastroenterology
Milwaukee, WI 53226
Who else practices at this address →
Milwaukee County includes primary care (32% of residents) and mental health (34% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Medical College of Wisconsin (2008)
- Years since graduation
- 18
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 241
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
- 2008Medical school: Medical College of Wisconsin
- 2008Registered 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
WI license 56362 -
Internal Medicine Physician
WI license 56362-20
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Froedtert Memorial Lutheran Hospital Milwaukee, WI
Medical groups
- The Medical College of Wisconsin Inc (2,115 clinicians)
- Froedtert Andthe Medical College of Wisconsin Community Physicians Inc (1,285 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
- 241
- Services billed
- 461
- Patients’ average age
- 69
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 105 | 89 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 65 | 61 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 31 | 31 |
| New patient office or other outpatient visit, 45-59 minutes | 26 | 26 |
| Biopsy of large bowel using a flexible endoscope | 21 | 21 |
| Established patient office or other outpatient visit, 20-29 minutes | 16 | 15 |
| Established patient office or other outpatient visit, 40-54 minutes | 16 | 15 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 14 | 14 |
| Insertion of guide wire with dilation of esophagus using a flexible endoscope | 13 | 13 |
| Colorectal cancer screening; colonoscopy on individual at high risk | 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 |
|---|---|
| Omeprazole Other prescribers in Milwaukee, WI | 72 |
| Gavilyte-G (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Milwaukee, WI | 48 |
| Linzess (linaclotide) Other prescribers in Milwaukee, WI | 41 |
| Rabeprazole Sodium Other prescribers in Milwaukee, WI | 39 |
| Pantoprazole Sodium Other prescribers in Milwaukee, WI | 35 |
| Peg-3350 And Electrolytes (peg3350/sod sulf,bicarb,cl/kcl) Other prescribers in Milwaukee, WI | 26 |
| Lubiprostone Other prescribers in Milwaukee, WI | 20 |
| Ondansetron Odt (ondansetron) Other prescribers in Milwaukee, WI | 19 |
| Xifaxan (rifaximin) Other prescribers in Milwaukee, WI | 15 |
| Konvomep (omeprazole/sodium bicarbonate) | 15 |
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, 2 companies reported 2 payments worth $2,470 in total to this clinician.
| Regeneron Healthcare Solutions, Inc. | $2,431 |
|---|---|
| Genzyme Corporation | $38.79 |
| Compensation for services other than consulting (speaking, faculty) | $2,431 |
|---|---|
| Food and Beverage | $38.79 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. Mar 14, 2025 | Compensation for services other than consulting (speaking, faculty) DUPIXENT · IMMUNOLOGY AND INFLAMMATION | $2,431 |
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 $12,250 in research payments for these studies, mostly to the institutions running them.
- A Study to Learn How Well Dupilumab Works in Adult and Adolescent Participants With Eosinophilic Gastritis With or Without Eosinophilic Duodenitis and the Side Effects it May Have
Regeneron Pharmaceuticals, Inc. · Active, not recruiting · NCT05831176
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.