Doctor profile · Federal record

Dr. Stephanie Judd Irwin, M.D.

Gastroenterology Physician (CMS: Internal Medicine) · Ashland, WI

  • NPI 1831328707
  • Accepts Medicare
  • 17 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1615 Maple Lane
Ashland, WI 54806
(715) 685-6010
fax (715) 682-0738

Credentials & registration

NPPES · NUCC
NPI registered
July 2009 — 17 yrs on file
Profile last updated
November 15, 2024
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Michigan #4301094318

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831328707. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
197
Distinct HCPCS
7
Medicare allowed
$27,380
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 53 50 $230
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 38 37 $107
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 29 29 $126
99213 Established patient office or other outpatient visit, 20-29 minutes 24 19 $64
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 22 18 $116
45380 Biopsy of large bowel using a flexible endoscope 18 16 $94
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $129

In context: peer comparison

Among 1 peers in Ashland Gastroenterology Physician, average services per provider: 28. This provider delivers 7.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
380
Patients
170
Total drug cost
$8,523
Drug Type Claims Patients Total cost
Omeprazole Generic 232 90 $4,555
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 59 57 $1,693
Pantoprazole Sodium Generic 49 23 $1,270
Famotidine Generic 25 0 $686
Prednisone Generic 15 0 $319

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephanie Judd Irwin's medical specialty?
Dr. Stephanie Judd Irwin practices Gastroenterology Physician in Ashland, WI.
Where does Dr. Stephanie Judd Irwin practice?
Dr. Stephanie Judd Irwin practices at 1615 Maple Lane, Ashland, WI 54806. Office phone: 7156856010.
What is Dr. Stephanie Judd Irwin's NPI?
Dr. Stephanie Judd Irwin's National Provider Identifier (NPI) is 1831328707, issued by NPPES.
Does Dr. Stephanie Judd Irwin accept Medicare assignment?
Yes. Dr. Stephanie Judd Irwin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephanie Judd Irwin 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); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.