Robert Guzy
NPI 1558511907 · Pulmonary Disease Physician · Madison, WI
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Guzy is a Pulmonary Disease Physician provider in Madison, WI (NPI 1558511907).
Provider details
- NPI number
- 1558511907
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 77146 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
466 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 198 | $105 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 116 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 67 | $71 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 37 | $15 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 26 | $75 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 51 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 266 | 53 |
| Prednisone | 202 | 54 |
| Azithromycin | 172 | 42 |
| Valacyclovir Hclbrand: Valacyclovir | 128 | 29 |
| Pantoprazole Sodium | 124 | 28 |
| Montelukast Sodium | 120 | 32 |
| Tacrolimus | 103 |
Practice location
Mailing address
Additional practice locations (1)
- 5841 S Maryland AveChicago, IL 60637-1443Phone: (888) 824-0200
Registry dates
- Enumerated
- 2008-09-23
- Last updated
- 2022-07-20
- Certified
- 2022-07-20
Frequently asked questions
- What is Robert Guzy's NPI number?
- Robert Guzy's National Provider Identifier (NPI) is 1558511907, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Guzy's specialty?
- Robert Guzy is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Guzy located?
- Robert Guzy's practice location on file with NPPES is 600 Highland Ave, Madison, WI 53792-1443.
- What is Robert Guzy's phone number?
- The practice phone number listed in the NPPES registry for Robert Guzy is (608) 263-7203.
- Does Robert Guzy accept Medicare?
- Robert Guzy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Guzy's NPI active?
- Yes — Robert Guzy's NPI (1558511907) is active in the NPPES registry as of the last update on 2022-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.