Quick answers
- Does Tessa Somermeyer accept Medicare assignment?
- Yes. Medicare's clinician data says Tessa Somermeyer 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 Tessa Somermeyer see?
- In 2024, CMS data shows 134 Original Medicare patients and 519 services for Tessa Somermeyer. This counts Original Medicare only and measures volume, not quality.
- What is Tessa Somermeyer's NPI number?
- 1003439969. 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 Tessa Somermeyer, 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 | 134 |
|---|---|
| Services billed to Medicare | 519 |
| Different services or procedures | 61 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)104 services
- Insertion of needle into vein for collection of blood sample (36415)72 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)57 services
- Blood test, basic group of blood chemicals (calcium, total) (80048)38 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)28 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 pressure69%
- High cholesterol62%
- Arthritis46%
- Diabetes28%
- Ischemic heart disease25%
- Chronic kidney disease25%
Hospitals where Tessa Somermeyer works
Medicare's Facility Affiliation Data lists Tessa Somermeyer 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.
- Ridgeview Medical CenterWaconia, MN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 240056
Practice locations
Addresses where Tessa Somermeyer is enrolled with Medicare (CMS data updated October 2, 2026).
- 110105 Pioneer Trl W, Suite 100Chaska, MN 55318 (952) 556‑0120
- 424 W State Hwy 5Waconia, MN 55387 (952) 442‑4461
Group practices
Medicare enrollment lists Tessa Somermeyer as a member of this group (CMS data updated October 2, 2026).
- Lakeview Clinic, Ltd.52 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Chaska
Clinicians with the same Medicare primary specialty in Chaska, MN — not a recommendation.
Other clinicians in Lakeview Clinic, Ltd.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003439969 |
| 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