Quick answers
- Does Caleb L. Shumway accept Medicare assignment?
- Yes. Medicare's clinician data says Caleb L. Shumway 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 Caleb L. Shumway see?
- In 2024, CMS data shows 268 Original Medicare patients and 608 services for Caleb L. Shumway. This counts Original Medicare only and measures volume, not quality.
- What is Caleb L. Shumway's NPI number?
- 1225698814. 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 Caleb L. Shumway, 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 | 268 |
|---|---|
| Services billed to Medicare | 608 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)97 services
- Photography of the retina (92250)55 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)53 services
- Removal of recurring cataract in lens capsule using a laser (66821)34 services
- New patient complete exam of visual system (92004)33 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 pressure74%
- Diabetes41%
- Arthritis37%
- Chronic kidney disease27%
- Ischemic heart disease21%
Practice locations
Addresses where Caleb L. Shumway is enrolled with Medicare (CMS data updated October 2, 2026).
- 18582 Main StHuntington Beach, CA 92648 (714) 965‑9696
Group practices
Medicare enrollment lists Caleb L. Shumway as a member of this group (CMS data updated October 2, 2026).
- Samir a Shah MD Professional Corporation11 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Huntington Beach
Clinicians with the same Medicare primary specialty in Huntington Beach, CA — not a recommendation.
Other clinicians in Samir a Shah MD Professional Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Un Of California, Irvine, College Of Medicine |
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225698814 |
| 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