Quick answers
- Does Lynda M. Nelson Swain accept Medicare assignment?
- Yes. Medicare's clinician data says Lynda M. Nelson Swain 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 Lynda M. Nelson Swain see?
- In 2024, CMS data shows 349 Original Medicare patients and 1,225 services for Lynda M. Nelson Swain. This counts Original Medicare only and measures volume, not quality.
- What is Lynda M. Nelson Swain's NPI number?
- 1851479695. 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 Lynda M. Nelson Swain, 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 | 349 |
|---|---|
| Services billed to Medicare | 1,225 |
| Different services or procedures | 28 |
| Participating Medicare provider | Yes |
| Average age of these patients | 81 |
Most frequent services
- Insertion of needle into vein for collection of blood sample (36415)391 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)321 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)93 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)83 services
- Injection of drug or substance under skin or into muscle (96372)52 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%
- Ischemic heart disease48%
- Diabetes42%
- Chronic kidney disease39%
Hospitals where Lynda M. Nelson Swain works
Medicare's Facility Affiliation Data lists Lynda M. Nelson Swain 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.
- Adventist Health St HelenaSaint Helena, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050013
- Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050009
Practice locations
Addresses where Lynda M. Nelson Swain is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 California DrYountville, CA 94599 (707) 944‑4506
- 100 California Dr, 3e Room 13Yountville, CA 94599
Group practices
Medicare enrollment lists Lynda M. Nelson Swain as a member of this group (CMS data updated October 2, 2026).
- Veterans Home of California23 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Yountville
Clinicians with the same Medicare primary specialty in Yountville, CA — not a recommendation.
Other clinicians in Veterans Home of California
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 | 1994 (32 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851479695 |
| 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