Quick answers
- Does Alvin Arellano accept Medicare assignment?
- Yes. Medicare's clinician data says Alvin Arellano 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 Alvin Arellano see?
- In 2024, CMS data shows 29 Original Medicare patients and 98 services for Alvin Arellano. This counts Original Medicare only and measures volume, not quality.
- What is Alvin Arellano's NPI number?
- 1538155932. 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 Alvin Arellano, 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 | 29 |
|---|---|
| Services billed to Medicare | 98 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)32 services
- Photography of the retina (92250)17 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 pressure62%
- Diabetes45%
Practice locations
Addresses where Alvin Arellano is enrolled with Medicare (CMS data updated October 2, 2026).
- 1909 W Malvern AveFullerton, CA 92833 (714) 992‑8020
- 3500 S Bristol St, Suite 202Santa Ana, CA 92704 (714) 557‑7800
- 6200 E Canyon Rim RdAnaheim, CA 92807 (714) 998‑2020
Group practices
Medicare enrollment lists Alvin Arellano as a member of these groups (CMS data updated October 2, 2026).
- Alvin Arellano Od Inc5 clinicians in the group
- Pacific Partners Optometric Group Inc4 clinicians in the group
- Aa Optometric Group Inc3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Fullerton
Clinicians with the same Medicare primary specialty in Fullerton, CA — not a recommendation.
Other clinicians in Alvin Arellano Od Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | University Of California - School Of Optometry |
| Graduation year | 1998 (28 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538155932 |
| 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