Quick answers
- Does Nathan J. Rudometkin accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan J. Rudometkin 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 Nathan J. Rudometkin see?
- In 2024, CMS data shows 413 Original Medicare patients and 6,767 services for Nathan J. Rudometkin. This counts Original Medicare only and measures volume, not quality.
- What is Nathan J. Rudometkin's NPI number?
- 1225128994. 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 Nathan J. Rudometkin, 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 | 413 |
|---|---|
| Services billed to Medicare | 6,767 |
| Different services or procedures | 42 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)3,061 services
- Imaging of retina (92134)956 services
- Established patient complete exam of visual system (92014)805 services
- Injection of drug into eye (67028)444 services
- Injection, aflibercept, 1 mg (J0178)413 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%
- Diabetes60%
- Chronic kidney disease40%
- Arthritis38%
- Ischemic heart disease34%
Practice locations
Addresses where Nathan J. Rudometkin is enrolled with Medicare (CMS data updated October 2, 2026).
- 555 N 13th AveUpland, CA 91786 (909) 982‑8846
Group practices
Medicare enrollment lists Nathan J. Rudometkin as a member of this group (CMS data updated October 2, 2026).
- Pacific Eye Institute a Medical Group Inc44 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Upland
Clinicians with the same Medicare primary specialty in Upland, CA — not a recommendation.
Other clinicians in Pacific Eye Institute a Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2001 (25 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225128994 |
| 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