Quick answers
- Does Roger F. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Roger F. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Roger F. Johnson see?
- In 2024, CMS data shows 374 Original Medicare patients and 970 services for Roger F. Johnson. This counts Original Medicare only and measures volume, not quality.
- What is Roger F. Johnson's NPI number?
- 1780624742. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Roger F. Johnson, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 374 |
|---|---|
| Services billed to Medicare | 970 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)291 services
- Administration and interpretation of patient-focused health risk assessment (96160)168 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)83 services
- Test to examine how well the lungs exchange gases (94729)75 services
- Test to determine lung volumes using sensors (94726)72 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- COPD53%
- Arthritis52%
- Ischemic heart disease48%
- Atrial fibrillation37%
Hospitals where Roger F. Johnson works
Medicare's Facility Affiliation Data lists Roger F. Johnson at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Ascension St Vincent EvansvilleEvansville, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150100
- Ascension St Vincent WarrickBoonville, IN · Critical Access Hospital · Emergency services: listed by Medicare · CCN 151325
- Daviess Community HospitalWashington, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150061
- Deaconess Hospital IncEvansville, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150082
- Memorial Hospital and Health Care CenterJasper, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150115
Practice locations
Addresses where Roger F. Johnson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1314 E Walnut StWashington, IN 47501 (812) 254‑8892
- 3700 Washington AveEvansville, IN 47714
- 801 Saint Marys Dr, 505eEvansville, IN 47714 (812) 491‑3236
- 901 Saint Marys Dr, Suite 400Evansville, IN 47714 (812) 485‑6030
Group practices
Medicare enrollment lists Roger F. Johnson as a member of this group (CMS data updated October 2, 2026).
- St Marys Medical Group LLC228 clinicians in the group
Specialties
Other pulmonologists in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Other clinicians in St Marys Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780624742 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians