John Butos, M.D.
NPI 1437445467 · Hospitalist Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Butos, M.D. is a Hospitalist Physician provider in Chicago, IL (NPI 1437445467).
Provider details
- NPI number
- 1437445467
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125:060550 (IL)
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
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
427 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 35 Minutes99232 | 171 | $81 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 75 | $178 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 70 | $52 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 68 | $122 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 28 | $83 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-28
- Last updated
- 2022-03-29
- Certified
- 2022-03-29
Frequently asked questions
- What is John Butos's NPI number?
- John Butos's National Provider Identifier (NPI) is 1437445467, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Butos's specialty?
- John Butos is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is John Butos located?
- John Butos's practice location on file with NPPES is 1653 W Congress Pkwy, Chicago, IL 60612-3833.
- What is John Butos's phone number?
- The practice phone number listed in the NPPES registry for John Butos is (312) 942-5000.
- Does John Butos accept Medicare?
- John Butos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Butos's NPI active?
- Yes — John Butos's NPI (1437445467) is active in the NPPES registry as of the last update on 2022-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.