Doctor profile · Federal record

Dr. Siegfried Yu, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · La Crosse, WI

  • NPI 1386842565
  • Accepts Medicare
  • 21 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1836 South Ave
La Crosse, WI 54601
(608) 782-7300
Additional location
1120 15Th St # Ad-2226
Augusta, GA 309120004
(706) 446-4887
fax (706) 721-0331

Credentials & registration

NPPES · NUCC
NPI registered
July 2007 — 19 yrs on file
Profile last updated
August 14, 2019
Year of graduation
2005 — 21 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (3)
Wisconsin #71105 · Illinois #125-053469 · Georgia #069465
Medicaid
IL #036125897

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386842565. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
501
Distinct HCPCS
10
Medicare allowed
$47,948
HCPCS Description Services Patients Avg allowed
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 132 129 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 90 90 $231
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 72 70 $60
99215 Established patient office or other outpatient visit, 40-54 minutes 50 35 $137
45380 Biopsy of large bowel using a flexible endoscope 36 36 $53
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 29 29 $130
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 23 23 $5
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 18 18 $242
91010 Study of esophagus to assess movement 14 14 $62
91110 Imaging of digestive tract done from the inside of the digestive tract 14 14 $108

In context: peer comparison

Among 5 peers in La Crosse Gastroenterology Physician, average services per provider: 55. This provider delivers 9.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
493
Patients
289
Total drug cost
$187,683
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 133 131 $2,504
Peg-3350 and Electrolytes (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 77 77 $1,537
Omeprazole Generic 73 29 $987
Linzess (Linaclotide) Brand 37 0 $24,180
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 32 32 $700
Promethazine Hcl Generic 23 0 $542
Budesonide Dr (Budesonide) Brand 21 0 $4,004
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 20 20 $582
Pantoprazole Sodium Generic 18 0 $543
Xifaxan (Rifaximin) Brand 18 0 $55,975

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Siegfried Yu's medical specialty?
Dr. Siegfried Yu practices Gastroenterology Physician in La Crosse, WI.
Where does Dr. Siegfried Yu practice?
Dr. Siegfried Yu practices at 1836 South Ave, La Crosse, WI 54601. Office phone: 6087827300.
What is Dr. Siegfried Yu's NPI?
Dr. Siegfried Yu's National Provider Identifier (NPI) is 1386842565, issued by NPPES.
Does Dr. Siegfried Yu accept Medicare assignment?
Yes. Dr. Siegfried Yu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Siegfried Yu commonly perform?
Top Medicare-reported procedures in 2023: Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.