Doctor profile · Federal record

Dr. Justin Hartke, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Student in an Organized Health Care Education/Training Program · Wausau, WI

  • NPI 1154689685
  • Accepts Medicare
  • MIPS 81.1 / 100 · 2023
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
411 Westwood Dr
Wausau, WI 54401
(715) 847-2558
fax (715) 847-2557

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
July 3, 2018
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Wisconsin #69359-20

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154689685. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
326
Distinct HCPCS
9
Medicare allowed
$41,028
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 84 84 $216
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 68 66 $62
45380 Biopsy of large bowel using a flexible endoscope 45 45 $66
99214 Established patient office or other outpatient visit, 30-39 minutes 34 31 $122
99204 New patient office or other outpatient visit, 45-59 minutes 32 32 $159
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 17 17 $118
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 17 16 $61
96413 Administration of chemotherapy into vein, 1 hour or less 15 12 $125
99203 New patient office or other outpatient visit, 30-44 minutes 14 14 $106

In context: peer comparison

Among 5 peers in this city , average services per provider: 63. This provider delivers 5.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
854
Patients
269
Total drug cost
$1,003,341
Drug Type Claims Patients Total cost
Omeprazole Generic 255 91 $3,665
Pantoprazole Sodium Generic 97 38 $2,675
Linzess (Linaclotide) Brand 80 17 $58,241
Colestipol Hcl Generic 69 25 $4,836
Sucralfate Generic 64 30 $3,087
Creon (Lipase/Protease/Amylase) Brand 51 0 $107,079
Famotidine Generic 48 18 $660
Cholestyramine (Cholestyramine (With Sugar)) Brand 32 15 $2,015
Budesonide Dr (Budesonide) Brand 31 15 $4,552
Stelara (Ustekinumab) Brand 26 0 $700,639

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Justin Hartke's medical specialty?
Dr. Justin Hartke practices Gastroenterology Physician in Wausau, WI.
Where does Dr. Justin Hartke practice?
Dr. Justin Hartke practices at 411 Westwood Dr, Wausau, WI 54401. Office phone: 7158472558.
What is Dr. Justin Hartke's NPI?
Dr. Justin Hartke's National Provider Identifier (NPI) is 1154689685, issued by NPPES.
Does Dr. Justin Hartke accept Medicare assignment?
Yes. Dr. Justin Hartke accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Hartke commonly perform?
Top Medicare-reported procedures in 2023: 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); Biopsy of large bowel using a flexible endoscope (HCPCS 45380). Source: CMS Medicare Physician & Other Practitioners file.