Thomas Smith, MD
NPI 1649273400 · Nephrology Physician · Green Bay, WI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Smith, MD is a Nephrology Physician provider in Green Bay, WI (NPI 1649273400).
Provider details
- NPI number
- 1649273400
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 32954 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 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
51 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 38 | $120 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 | $156 |
Typical Medicare-allowed amounts for these services range $120–$156 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 79 | 23 |
| Losartan Potassium | 48 | 13 |
| Empagliflozinbrand: Jardiance | 46 | 13 |
| Amlodipine Besylate | 32 | 12 |
| Lisinopril | 32 | 13 |
| Calcitriol | 31 | — |
| Potassium Chloride | 30 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-24
- Last updated
- 2007-10-25
Frequently asked questions
- What is Thomas Smith's NPI number?
- Thomas Smith's National Provider Identifier (NPI) is 1649273400, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Smith's specialty?
- Thomas Smith is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Smith located?
- Thomas Smith's practice location on file with NPPES is 2020 Riverside Dr, Green Bay, WI 54301-2300.
- What is Thomas Smith's phone number?
- The practice phone number listed in the NPPES registry for Thomas Smith is (920) 433-9920.
- Does Thomas Smith accept Medicare?
- Thomas Smith is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Smith's NPI active?
- Yes — Thomas Smith's NPI (1649273400) is active in the NPPES registry as of the last update on 2007-10-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.