Somsak Tanawattanacharoen, MD
NPI 1851487888 · Nephrology Physician · Eau Claire, WI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Somsak Tanawattanacharoen, MD is a Nephrology Physician provider in Eau Claire, WI (NPI 1851487888).
Provider details
- NPI number
- 1851487888
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 42822 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,000 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 287 | $335 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 145 | $61 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 129 | $90 |
| Home Dialysis Services Per Month (20 Years Or Older)90966 | 97 | $278 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 62 | $46 |
| Dialysis Services, 2-3 Physician Visits Per Month (20 Years Or Older)90961 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 233 | 62 |
| Calcitriol | 209 | 57 |
| Amlodipine Besylate | 203 | 61 |
| Levothyroxine Sodium | 137 | 29 |
| Lisinopril | 131 | 41 |
| Furosemide | 121 | 35 |
| Losartan Potassium | 117 | 31 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2023-07-07
- Certified
- 2023-07-07
Frequently asked questions
- What is Somsak Tanawattanacharoen's NPI number?
- Somsak Tanawattanacharoen's National Provider Identifier (NPI) is 1851487888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Somsak Tanawattanacharoen's specialty?
- Somsak Tanawattanacharoen is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Somsak Tanawattanacharoen located?
- Somsak Tanawattanacharoen's practice location on file with NPPES is 2116 Craig Rd, Eau Claire, WI 54701-6149.
- What is Somsak Tanawattanacharoen's phone number?
- The practice phone number listed in the NPPES registry for Somsak Tanawattanacharoen is (715) 858-4500.
- Does Somsak Tanawattanacharoen accept Medicare?
- Somsak Tanawattanacharoen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Somsak Tanawattanacharoen's NPI active?
- Yes — Somsak Tanawattanacharoen's NPI (1851487888) is active in the NPPES registry as of the last update on 2023-07-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.