Quick answers
- Does Eduardo P. Macias accept Medicare assignment?
- Medicare's clinician data says Eduardo P. Macias may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Eduardo P. Macias see?
- In 2024, CMS data shows 320 Original Medicare patients and 978 services for Eduardo P. Macias. This counts Original Medicare only and measures volume, not quality.
- What is Eduardo P. Macias's NPI number?
- 1871539130. 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 Eduardo P. Macias, 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 | 320 |
|---|---|
| Services billed to Medicare | 978 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Extended exam of the back part of the eye with optic nerve drawing (92202)380 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)297 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)75 services
- Removal of cataract with insertion of prosthetic lens (66984)37 services
- Ultrasound scan to determine eye length and lens power (76519)32 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%
- Diabetes71%
- Arthritis43%
- Chronic kidney disease36%
- Heart failure21%
Practice locations
Addresses where Eduardo P. Macias is enrolled with Medicare (CMS data updated October 2, 2026).
- 18066 Foothill BlvdFontana, CA 92335 (909) 427‑8900
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Fontana
Clinicians with the same Medicare primary specialty in Fontana, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1871539130 |
| 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