Quick answers
- Does Stephen A. De Souza accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen A. De Souza 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 Stephen A. De Souza see?
- In 2024, CMS data shows 1,619 Original Medicare patients and 30,469 services for Stephen A. De Souza. This counts Original Medicare only and measures volume, not quality.
- What is Stephen A. De Souza's NPI number?
- 1548232820. 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 Stephen A. De Souza, 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 | 1,619 |
|---|---|
| Services billed to Medicare | 30,469 |
| Different services or procedures | 36 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)12,420 services
- Imaging of retina (92134)4,129 services
- Injection of drug into eye (67028)2,685 services
- Established patient problem focused exam of visual system (92012)2,497 services
- Compounded drug, not otherwise classified (J7999)2,109 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 blood pressure75%
- High cholesterol75%
- Arthritis47%
- Diabetes33%
- Ischemic heart disease33%
- Chronic kidney disease30%
Practice locations
Addresses where Stephen A. De Souza is enrolled with Medicare (CMS data updated October 2, 2026).
- 14500 N Northsight Blvd, Suite 121Scottsdale, AZ 85260 (602) 216‑1141
- 1750 E Glendale AvePhoenix, AZ 85020 (602) 242‑4928
- 1933 S Alma School RdMesa, AZ 85210 (602) 242‑4928
- 2082 E Florence BlvdCasa Grande, AZ 85122 (602) 242‑4928
- 302 W Main StPayson, AZ 85541 (602) 242‑4928
Group practices
Medicare enrollment lists Stephen A. De Souza as a member of this group (CMS data updated October 2, 2026).
- Associated Retina Consultants Ltd15 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in Associated Retina Consultants Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548232820 |
| 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