Quick answers
- Does Elena V. Ermakova accept Medicare assignment?
- Yes. Medicare's clinician data says Elena V. Ermakova 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 Elena V. Ermakova see?
- In 2024, CMS data shows 151 Original Medicare patients and 404 services for Elena V. Ermakova. This counts Original Medicare only and measures volume, not quality.
- What is Elena V. Ermakova's NPI number?
- 1932322112. 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 Elena V. Ermakova, 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 | 151 |
|---|---|
| Services billed to Medicare | 404 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 80 |
Most frequent services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)112 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)108 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)42 services
- Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a (G0179)35 services
- Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and (G0180)19 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%
- Depression43%
- Arthritis34%
- Diabetes32%
- Anxiety28%
Hospitals where Elena V. Ermakova works
Medicare's Facility Affiliation Data lists Elena V. Ermakova at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038
Practice locations
Addresses where Elena V. Ermakova is enrolled with Medicare (CMS data updated October 2, 2026).
- 2441 Mission College BlvdSanta Clara, CA 95054 (800) 478‑8837
- 2734 El Camino RealSanta Clara, CA 95051 (408) 241‑3801
- 370 Distel CirLos Altos, CA 94022 (650) 254‑5200
Group practices
Medicare enrollment lists Elena V. Ermakova as a member of this group (CMS data updated October 2, 2026).
- Sutter Bay Medical Foundation3,829 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Santa Clara
Clinicians with the same Medicare primary specialty in Santa Clara, CA — not a recommendation.
Other clinicians in Sutter Bay Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932322112 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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