THOMAS A KLINKHAMMER (MD) – Hematology & Oncology Physician, NPI 1851479067
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
350 HEMATOLOGY/ONCOLOGY in WI
Loading map...
Provider Addresses for THOMAS A KLINKHAMMER (MD)
Cranberry Boulevard, Weston Medical Center, Village of Weston, Marathon County, Wisconsin, 54476, United States
WESTON, WI 544765216
Phone: (715) 393-3900
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $88.
Total Amount is formed as General ($88) + Research ($0) + Ownership ($0) = $88.
Last reported payment date: 2023-10-10 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($88).
Total Amount
$88
General + Research + Ownership
Payments
1
Total payment records
General Amount
$88
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $88 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2009-09-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20090904000363 | I | Hematology/Oncology | WI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 103 | 63 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 42 | 20 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 33 | 29 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 17 | 15 | $0 |
Insurance plans in this area (ZIP 54476)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | WI | 85610 | Blood test, clotting time | 42 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | WI | |
| Family Practice | WI | |
| - | FL | |
| Hospitalist, Internal Medicine | MI | |
| P S Y C H I A T R Y | WI | |
| - | WI | |
| - | WA | |
| Physician Assistant | WI | |
| Family Practice | WI | |
| Nurse Practitioner | WI |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.