Thomas A. Klinkhammer, MD
Hematology & Oncology Physician · Weston, WI
Thomas A. Klinkhammer, MD is a hematology & oncology physician with a practice address in Weston, Wisconsin, and NPI 1851479067, issued on Nov 2, 2006. Check the license (Wisconsin 53185, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Thomas A. Klinkhammer
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 53185 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3301 Cranberry Blvd, Weston, WI 54476
- Phone
- (715) 393-3900
- Enumerated
- Nov 2, 2006
- Record last updated
- Jun 10, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 1851479067 WI
- Medicare enrollment
- Enrolled (PECOS I20090904000363); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 295 in Wisconsin → Look up another NPI →
Also registered at 3301 Cranberry Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olga Barchugova, MDFamily Medicine Physician1750562617
- Maribeth Beck, N.P.Nurse Practitioner1780067165
- Andrew Brown, CRNACertified Registered Nurse Anesthetist1790108793
- Cary Fechter, MDPulmonary Disease Physician1649235714
- Michele Federici, PA-CPhysician Assistant1043495955
- Carina Hafner, OTOccupational Therapist1407284417
Verify Thomas A. Klinkhammer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 53185Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
409 Medicare Part D claims for 129 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 39 claims were for opioids.
Most prescribed
- Ondansetron Hcl42 claims
- Tamoxifen Citrate32 claims
- Prochlorperazine Maleate29 claims
- Sulfamethoxazole-Trimethoprim24 claims
- Eliquis21 claims
- Hydroxyurea20 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Thedacare, IncorporatedShawano, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas A. Klinkhammer among 295 hematology & oncology physician records in Wisconsin
Thomas A. Klinkhammer, MD is one of 295 hematology & oncology physician records with a practice address in Wisconsin. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2003 · median 2004 among the 217 with a school on file
- Record last updated2016 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 hematology & oncology physician records list a practice address in Weston
They are 5 of the 368 NPPES records with a practice address in Weston, and 295 hematology & oncology physician records in Wisconsin.
All 295 in Wisconsin → Every provider in Weston → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Niaz Haque, MDWeston, WI 544761871783407
- Adedayo Onitilo, MDWeston, WI 544761275631566
- Douglas Reding, MDWeston, WI 544761760582076
- Yating Wang, M.D.Weston, WI 544761932760162
- Chady Abboud Leon, M.D.Marshfield, WI 544491770737744
- Ali Bseiso, MDMarshfield, WI 544491962575902
- Lawrence Clouse, MDMarshfield, WI 544491265541387
- Joseph Edmund, M.B.B.SMarshfield, WI 544491821518457
Common questions
What is Thomas A. Klinkhammer, MD's NPI number?
Thomas A. Klinkhammer, MD's National Provider Identifier (NPI) is 1851479067, issued on Nov 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas A. Klinkhammer, MD located?
The NPPES record lists a practice address at 3301 Cranberry Blvd, Weston, WI, 54476. Phone: (715) 393-3900. Providers update this record themselves, so call before visiting.
How can I verify Thomas A. Klinkhammer, MD's license?
NPPES lists Wisconsin license number 53185, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas A. Klinkhammer, MD prescribe under Medicare Part D?
In 2024, Thomas A. Klinkhammer, MD had 409 Medicare Part D claims for 129 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.