Doctor profile · Federal record

Dr. Walter Glaws, D O

Gastroenterology Physician (CMS: Gastroenterology) · Gurnee, IL

  • NPI 1104828532
  • Accepts Medicare
  • MIPS 85.1 / 100 · 2023
  • 38 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 Tower CT, Suite C
Gurnee, IL 600315711
(847) 244-2960
fax (847) 244-2986

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
December 28, 2021
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Illinois #036-084001

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104828532. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
837
Distinct HCPCS
10
Medicare allowed
$121,727
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 339 219 $130
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 94 90 $97
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 78 76 $247
45380 Biopsy of large bowel using a flexible endoscope 69 69 $133
99204 New patient office or other outpatient visit, 45-59 minutes 56 56 $170
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 48 46 $135
99213 Established patient office or other outpatient visit, 20-29 minutes 33 33 $94
46221 Removal of external hemorrhoids by rubber banding 32 12 $302
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 30 25 $82
99443 Telephone medical discussion with physician, 21-30 minutes 17 15 $127

In context: peer comparison

Among 6 peers in this city , average services per provider: 51. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,789
Transactions
196
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, Inc. 97 $1,246.65
Takeda Pharmaceuticals U.S.A., Inc. 22 $327.78
ABBVIE INC. 21 $278.34
Salix Pharmaceuticals, a division of Bausch Health US, LLC 11 $170.83
Ardelyx, Inc. 14 $136.10
PFIZER INC. 14 $135.04
QOL Medical, LLC 3 $78.50
Phathom Pharmaceuticals, Inc. 4 $77.55
Regeneron Healthcare Solutions, Inc. 2 $51.99
AIMMUNE THERAPEUTICS, INC. 2 $44.24
VIVUS LLC 2 $35.96
TerSera Therapeutics LLC 1 $32.38
Madrigal Pharmaceuticals 1 $32.13
GENZYME CORPORATION 1 $28.05
Lilly USA, LLC 1 $23.07

By nature of payment

Food and Beverage
$2,781
Education
$8

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,307
Patients
502
Total drug cost
$270,161
Drug Type Claims Patients Total cost
Omeprazole Generic 322 113 $5,361
Pantoprazole Sodium Generic 309 87 $9,008
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 213 208 $3,759
Linzess (Linaclotide) Brand 94 28 $91,515
Famotidine Generic 61 22 $1,015
Esomeprazole Magnesium Generic 40 13 $2,201
Dexlansoprazole Dr (Dexlansoprazole) Brand 36 0 $14,647
Colestipol Hcl Generic 31 0 $3,670
Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 31 31 $628
Xifaxan (Rifaximin) Brand 31 0 $105,290

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Walter Glaws's medical specialty?
Dr. Walter Glaws practices Gastroenterology Physician in Gurnee, IL.
Where does Dr. Walter Glaws practice?
Dr. Walter Glaws practices at 20 Tower CT, Gurnee, IL 600315711. Office phone: 8472442960.
What is Dr. Walter Glaws's NPI?
Dr. Walter Glaws's National Provider Identifier (NPI) is 1104828532, issued by NPPES.
Does Dr. Walter Glaws accept Medicare assignment?
Yes. Dr. Walter Glaws accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Walter Glaws commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385). Source: CMS Medicare Physician & Other Practitioners file.