Quick answers
- Does Gaston A. Saint Martin accept Medicare assignment?
- Yes. Medicare's clinician data says Gaston A. Saint Martin 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 Gaston A. Saint Martin see?
- In 2024, CMS data shows 1,872 Original Medicare patients and 2,840 services for Gaston A. Saint Martin. This counts Original Medicare only and measures volume, not quality.
- What is Gaston A. Saint Martin's NPI number?
- 1598786394. 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 Gaston A. Saint Martin, 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 | 1,872 |
|---|---|
| Services billed to Medicare | 2,840 |
| Different services or procedures | 161 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Ct scan head or brain without contrast (70450)261 services
- X-ray of chest, 1 view (71045)252 services
- X-ray of chest, 2 views (71046)241 services
- Ct scan of abdomen and pelvis with contrast (74177)126 services
- Ct scan of abdomen and pelvis without contrast (74176)104 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%
- Arthritis67%
- Ischemic heart disease44%
- Chronic kidney disease39%
- Anxiety37%
Hospitals where Gaston A. Saint Martin works
Medicare's Facility Affiliation Data lists Gaston A. Saint Martin 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.
- Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200
- UChicago Medicine AdventHealth BolingbrookBolingbrook, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140304
- UChicago Medicine AdventHealth GlenoaksGlendale Heights, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140292
- 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 Gaston A. Saint Martin is enrolled with Medicare (CMS data updated October 2, 2026).
- 120 N Oak StHinsdale, IL 60521 (630) 856‑9000
- 5101 Willow Springs RdLa Grange, IL 60525 (708) 245‑9000
- 701 Winthrop AveGlendale Heights, IL 60139 (630) 545‑8000
Group practices
Medicare enrollment lists Gaston A. Saint Martin as a member of this group (CMS data updated October 2, 2026).
- Suburban Radiologists, S.C.22 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Pathologyalso
Other radiologists in Hinsdale
Clinicians with the same Medicare primary specialty in Hinsdale, IL — not a recommendation.
Other clinicians in Suburban Radiologists, S.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598786394 |
| 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