Quick answers
- Does Alicia Y. Scherba accept Medicare assignment?
- Yes. Medicare's clinician data says Alicia Y. Scherba 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 Alicia Y. Scherba see?
- In 2024, CMS data shows 360 Original Medicare patients and 2,877 services for Alicia Y. Scherba. This counts Original Medicare only and measures volume, not quality.
- What is Alicia Y. Scherba's NPI number?
- 1811638331. 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 Alicia Y. Scherba, 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 | 360 |
|---|---|
| Services billed to Medicare | 2,877 |
| Different services or procedures | 45 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Destruction of precancer skin growth, 2-14 growths (17003)1,022 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)592 services
- Destruction of precancer skin growth, 1 growth (17000)349 services
- Destruction of skin growth, 1-14 growths (17110)237 services
- Biopsy of related skin growth, first growth (11102)176 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 pressure64%
- Arthritis47%
- Diabetes24%
- Chronic kidney disease21%
- Ischemic heart disease18%
Practice locations
Addresses where Alicia Y. Scherba is enrolled with Medicare (CMS data updated October 2, 2026).
- 136 N San Mateo DrSan Mateo, CA 94401 (650) 348‑1242
- 20400 Lake Chabot Rd, Suite 202Castro Valley, CA 94546 (510) 881‑7822
Group practices
Medicare enrollment lists Alicia Y. Scherba as a member of this group (CMS data updated October 2, 2026).
- Csi Medical Group111 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in San Mateo
Clinicians with the same Medicare primary specialty in San Mateo, CA — not a recommendation.
Other clinicians in Csi Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811638331 |
| 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