Thomas Klinkhammer, MD
NPI 1851479067 · Hematology & Oncology Physician · Weston, WI
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Klinkhammer, MD is a Hematology & Oncology Physician provider in Weston, WI (NPI 1851479067).
Provider details
- NPI number
- 1851479067
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 53185 (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
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
667 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 192 | $15 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 186 | $120 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $85 |
| Gallium Ga-68 Gozetotide, Diagnostic, (illuccix), 1 MillicurieA9596 | 66 | $1,104 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 52 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
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 |
|---|---|---|
| Ondansetron Hcl | 42 | 36 |
| Tamoxifen Citrate | 32 | 14 |
| Prochlorperazine Maleate | 29 | 24 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 24 | — |
| Apixabanbrand: Eliquis | 21 | — |
| Hydroxyurea | 20 | — |
| Dexamethasone | 18 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2016-06-10
Frequently asked questions
- What is Thomas Klinkhammer's NPI number?
- Thomas Klinkhammer's National Provider Identifier (NPI) is 1851479067, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Klinkhammer's specialty?
- Thomas Klinkhammer is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Klinkhammer located?
- Thomas Klinkhammer's practice location on file with NPPES is 3301 Cranberry Blvd, Weston, WI 54476-5216.
- What is Thomas Klinkhammer's phone number?
- The practice phone number listed in the NPPES registry for Thomas Klinkhammer is (715) 393-3900.
- Does Thomas Klinkhammer accept Medicare?
- Thomas Klinkhammer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Klinkhammer's NPI active?
- Yes — Thomas Klinkhammer's NPI (1851479067) is active in the NPPES registry as of the last update on 2016-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.