Quick answers
- Does James F. McDonnell accept Medicare assignment?
- Yes. Medicare's clinician data says James F. McDonnell 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 James F. McDonnell see?
- In 2024, CMS data shows 125 Original Medicare patients and 371 services for James F. McDonnell. This counts Original Medicare only and measures volume, not quality.
- What is James F. McDonnell's NPI number?
- 1093782831. 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 James F. McDonnell, 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 | 125 |
|---|---|
| Services billed to Medicare | 371 |
| Different services or procedures | 21 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Exam to measure eye deviation and range of motion (92060)164 services
- Established patient problem focused exam of visual system (92012)68 services
- Established patient complete exam of visual system (92014)53 services
- New patient complete exam of visual system (92004)28 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 cholesterol70%
- High blood pressure62%
- Arthritis46%
- Diabetes27%
- Ischemic heart disease26%
- Chronic kidney disease24%
Hospitals where James F. McDonnell works
Medicare's Facility Affiliation Data lists James F. McDonnell 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.
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140276
Practice locations
Addresses where James F. McDonnell is enrolled with Medicare (CMS data updated October 2, 2026).
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑9000
Group practices
Medicare enrollment lists James F. McDonnell as a member of this group (CMS data updated October 2, 2026).
- Loyola University Medical Center953 clinicians in the group
Specialties
- Ophthalmologyprimary
- Pediatric Medicinealso
Other ophthalmologists in Maywood
Clinicians with the same Medicare primary specialty in Maywood, IL — not a recommendation.
Other clinicians in Loyola University Medical Center
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 | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093782831 |
| 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