Quick answers
- Does Santiago M. Cornejo accept Medicare assignment?
- Yes. Medicare's clinician data says Santiago M. Cornejo 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 Santiago M. Cornejo see?
- In 2024, CMS data shows 446 Original Medicare patients and 27,824 services for Santiago M. Cornejo. This counts Original Medicare only and measures volume, not quality.
- What is Santiago M. Cornejo's NPI number?
- 1265661896. 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 Santiago M. Cornejo, 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 | 446 |
|---|---|
| Services billed to Medicare | 27,824 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)20,938 services
- Review by radiologist of additional artery image (75774)1,840 services
- Insertion of tube into abdominal, pelvic, or leg artery, additional second, third, and beyond (36248)1,594 services
- Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes (99153)866 services
- Insertion of tube into abdominal, pelvic, or leg artery, initial third order branch (36247)530 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%
- Arthritis43%
- Ischemic heart disease40%
- Chronic kidney disease27%
- Diabetes24%
Practice locations
Addresses where Santiago M. Cornejo is enrolled with Medicare (CMS data updated October 2, 2026).
- 1313 E Osborn Rd, Suite 150Phoenix, AZ 85014 (602) 222‑1900
Group practices
Medicare enrollment lists Santiago M. Cornejo as a member of this group (CMS data updated October 2, 2026).
- Arizona Urology Specialists PLLC84 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Arizona Urology Specialists PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 2006 (20 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) | 1265661896 |
| 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
- 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