Quick answers
- Does Erin B. Lally accept Medicare assignment?
- Yes. Medicare's clinician data says Erin B. Lally 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 Erin B. Lally see?
- In 2024, CMS data shows 358 Original Medicare patients and 2,536 services for Erin B. Lally. This counts Original Medicare only and measures volume, not quality.
- What is Erin B. Lally's NPI number?
- 1417244831. 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 Erin B. Lally, 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 | 358 |
|---|---|
| Services billed to Medicare | 2,536 |
| Different services or procedures | 30 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient complete exam of visual system (92014)560 services
- Imaging of retina (92134)410 services
- Photography of the retina (92250)157 services
- Injection, aflibercept, 1 mg (J0178)144 services
- New patient complete exam of visual system (92004)120 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 pressure72%
- Arthritis36%
- Diabetes34%
- Ischemic heart disease25%
- Chronic kidney disease18%
Practice locations
Addresses where Erin B. Lally is enrolled with Medicare (CMS data updated October 2, 2026).
- 2100 Forest Ave, Suite 105San Jose, CA 95128 (408) 495‑8800
Specialties
- Ophthalmologyprimary
Other ophthalmologists in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417244831 |
| 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