Quick answers
- Does Samantha Schneider Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Samantha Schneider Johnson 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 Samantha Schneider Johnson see?
- In 2024, CMS data shows 425 Original Medicare patients and 1,286 services for Samantha Schneider Johnson. This counts Original Medicare only and measures volume, not quality.
- What is Samantha Schneider Johnson's NPI number?
- 1457840035. 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 Samantha Schneider Johnson, 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 | 425 |
|---|---|
| Services billed to Medicare | 1,286 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient problem focused exam of visual system (92012)240 services
- Photography of the retina (92250)221 services
- Established patient complete exam of visual system (92014)154 services
- Measurement of corneal curvature and depth of eye (92136)141 services
- Removal of cataract with insertion of prosthetic lens (66984)118 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%
- Arthritis52%
- Diabetes40%
- Chronic kidney disease29%
- Ischemic heart disease25%
Practice locations
Addresses where Samantha Schneider Johnson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1124 S Main St, Suite 101Corona, CA 92882 (951) 737‑6363
Group practices
Medicare enrollment lists Samantha Schneider Johnson as a member of this group (CMS data updated October 2, 2026).
- Tri-County Eye Institute Inc6 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Corona
Clinicians with the same Medicare primary specialty in Corona, CA — not a recommendation.
Other clinicians in Tri-County Eye Institute Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2018 (8 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457840035 |
| 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