Doctor profile · Federal record

Dr. Robert Guzy

Pulmonary Disease Physician (CMS: Pulmonary Disease) · Pulmonary Disease Physician · Madison, WI

  • NPI 1558511907
  • Accepts Medicare
  • 18 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
600 Highland Ave
Madison, WI 537921443
(608) 263-7203
Additional location
5841 S Maryland Ave
Chicago, IL 606371443
(888) 824-0200
Mailing address
7974 Uw Health CT
Middleton, WI 535625531

Credentials & registration

NPPES · NUCC
NPI registered
September 2008 — 18 yrs on file
Profile last updated
July 20, 2022
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207RP1001X — NUCC code
State licenses (2)
Wisconsin #77146 · Illinois #036138537

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558511907. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
400
Distinct HCPCS
5
Medicare allowed
$45,444
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 183 27 $114
99215 Established patient office or other outpatient visit, 40-54 minutes 111 51 $135
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 70 22 $75
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 19 14 $166
99238 Hospital discharge day management, 30 minutes or less 17 17 $77

In context: peer comparison

Among 23 peers in Madison Pulmonary Disease Physician, average services per provider: 47. This provider delivers 8.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,238
Patients
344
Total drug cost
$88,739
Drug Type Claims Patients Total cost
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 187 48 $1,451
Prednisone Generic 142 45 $2,410
Valacyclovir (Valacyclovir Hcl) Brand 113 26 $8,247
Pantoprazole Sodium Generic 109 30 $3,479
Azithromycin Generic 105 37 $2,642
Montelukast Sodium Generic 86 31 $1,798
Rosuvastatin Calcium Generic 83 22 $1,947
Tacrolimus Generic 78 18 $15,643
Omeprazole Generic 52 14 $1,305
Pravastatin Sodium Generic 51 11 $1,124

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Guzy's medical specialty?
Dr. Robert Guzy practices Pulmonary Disease Physician in Madison, WI.
Where does Dr. Robert Guzy practice?
Dr. Robert Guzy practices at 600 Highland Ave, Madison, WI 537921443. Office phone: 6082637203.
What is Dr. Robert Guzy's NPI?
Dr. Robert Guzy's National Provider Identifier (NPI) is 1558511907, issued by NPPES.
Does Dr. Robert Guzy accept Medicare assignment?
Yes. Dr. Robert Guzy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Guzy commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.