Quick answers
- Does Lauren C. Siemer accept Medicare assignment?
- Yes. Medicare's clinician data says Lauren C. Siemer 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 Lauren C. Siemer see?
- In 2024, CMS data shows 269 Original Medicare patients and 285 services for Lauren C. Siemer. This counts Original Medicare only and measures volume, not quality.
- What is Lauren C. Siemer's NPI number?
- 1790205342. 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 Lauren C. Siemer, 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 | 269 |
|---|---|
| Services billed to Medicare | 285 |
| Different services or procedures | 56 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Anesthesia for lens surgery (00142)51 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)30 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)16 services
- Anesthesia for exam of colon using an endoscope (00812)16 services
- Anesthesia for other procedure on neck area (1 year or older) (00320)14 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 pressure74%
- High cholesterol72%
- Arthritis52%
- Depression30%
- Diabetes29%
- Anxiety29%
Hospitals where Lauren C. Siemer works
Medicare's Facility Affiliation Data lists Lauren C. Siemer 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.
- Vanderbilt University Medical CenterNashville, TN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 440039
- Vanderbilt Wilson County HospitalLebanon, TN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 440193
Practice locations
Addresses where Lauren C. Siemer is enrolled with Medicare (CMS data updated October 2, 2026).
- 1301 Medical Ctr DrNashville, TN 37232 (615) 322‑5000
- 3601 the Vanderbilt ClinicNashville, TN 37232 (615) 322‑3000
Group practices
Medicare enrollment lists Lauren C. Siemer as a member of this group (CMS data updated October 2, 2026).
- Vanderbilt University Medical Center3,567 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Nashville
Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.
Other clinicians in Vanderbilt University Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 (9 years since medical school) |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790205342 |
| 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