Quick answers
- Does Carl J. Calandra Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Carl J. Calandra Iii 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 Carl J. Calandra Iii see?
- In 2024, CMS data shows 839 Original Medicare patients and 1,418 services for Carl J. Calandra Iii. This counts Original Medicare only and measures volume, not quality.
- What is Carl J. Calandra Iii's NPI number?
- 1366527418. 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 Carl J. Calandra Iii, 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 | 839 |
|---|---|
| Services billed to Medicare | 1,418 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)227 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)205 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)170 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)167 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)109 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 cholesterol75%
- High blood pressure71%
- Arthritis51%
- Ischemic heart disease35%
- Chronic kidney disease25%
- Diabetes24%
Hospitals where Carl J. Calandra Iii works
Medicare's Facility Affiliation Data lists Carl J. Calandra Iii 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.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140288
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140276
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140304
- UChicago Medicine AdventHealth HinsdaleHinsdale, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140122
- UChicago Medicine AdventHealth La GrangeLa Grange, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140065
Practice locations
Addresses where Carl J. Calandra Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 12 Salt Creek Ln, Suite 425Hinsdale, IL 60521 (630) 789‑2260
- 2160 S 1st AveMaywood, IL 60153 (708) 216‑8372
Group practices
Medicare enrollment lists Carl J. Calandra Iii as a member of these groups (CMS data updated October 2, 2026).
- Loyola University Medical Center953 clinicians in the group
- Illinois Gastroenterology Group LLC115 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Hinsdale
Clinicians with the same Medicare primary specialty in Hinsdale, 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 | DO |
|---|---|
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366527418 |
| 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