Internal Medicine, Nephrology · Columbia, MO
NPI
1316943475
Since 2005
Specialty
Internal Medicine, Nephrology
Code 207RN0300X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
1205 W Broadway
Columbia, MO, 65203
Phone (573) 499-0642
Groups this clinician bills Medicare through
Medicare paid, 2024
$209K
2,389 services
Medicare patients, 2024
630
Average age 75
Drug cost, 2024
$392K
7,458 prescriptions
Company payments, 2025
$23.72
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by William K Winkelmeyer was code G2211 (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's), 532 times for 327 patients. In total William K Winkelmeyer billed 2,389 services in 25 codes, and Medicare paid $209K.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2022-10-05.
| Code | Setting | Services | Patients | Paid per service | Medicare paid |
|---|---|---|---|---|---|
| G2211 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's | Office | 532 | 327 | $11.51 | $6,124 |
| 99215 Office E&M - Established | Office | 382 | 240 | $119.45 | $46K |
| 99232 Hospital E&M - Subsequent | Facility | 358 | 124 | $58.60 | $21K |
| 99214 Office E&M - Established | Office | 310 | 252 | $73.59 | $23K |
| 90960 ESRD Related Services (not dialysis) | Office | 151 | 24 | $255.73 | $39K |
| 90937 Hemodialysis | Facility | 126 | 49 | $75.68 | $9,535 |
| 99233 Hospital E&M - Subsequent | Facility | 116 | 45 | $88.06 | $10K |
| 90961 ESRD Related Services (not dialysis) | Office | 108 | 41 | $203.14 | $22K |
| 99221 Hospital E&M - Initial | Facility | 97 | 90 | $61.61 | $5,977 |
| 99205 Office E&M - New | Office | 34 | 34 | $140.52 | $4,778 |
| 99204 Office E&M - New | Office | 17 | 17 | $109.73 | $1,865 |
| 99213 Office E&M - Established | Office | 12 | 12 | $49.73 | $597 |
By year: 2022 $203K for 1,789 services; 2023 $216K for 1,895 services; 2024 $209K for 2,389 services.
Medicare prescription drug claims, 2024
In 2024, the drug William K Winkelmeyer prescribed most often to Medicare patients was Torsemide, with 919 prescriptions and refills. In total William K Winkelmeyer wrote 7,458 Medicare prescriptions that cost $392K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Torsemide Generic | 919 | 1,865 | 224 | $15K |
| Amlodipine Besylate Generic | 600 | 1,345 | 155 | $3,176 |
| Losartan Potassium Generic | 473 | 1,070 | 120 | $3,562 |
| Atorvastatin Calcium Generic | 462 | 1,232 | 120 | $4,036 |
| Lisinopril Generic | 354 | 895 | 97 | $1,498 |
| Indapamide Generic | 244 | 646 | 65 | $2,991 |
| Allopurinol Generic | 239 | 597 | 59 | $2,542 |
| Metformin Hcl Generic | 164 | 412 | 45 | $1,115 |
| Nifedipine Er Nifedipine | 154 | 304 | 31 | $2,754 |
| Levothyroxine Sodium Generic | 147 | 331 | 36 | $1,114 |
| Metoprolol Succinate Generic | 133 | 341 | 37 | $1,622 |
| Gabapentin Generic | 133 | 245 | 28 | $1,953 |
| Omeprazole Generic | 128 | 326 | 32 | $1,809 |
| Doxazosin Mesylate Generic | 120 | 300 | 31 | $1,647 |
| Spironolactone Generic | 117 | 301 | 34 | $1,167 |
Brand drugs: 471 claims; generic drugs: 6,946 claims; opioid claims: 117.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid William K Winkelmeyer $23.72 ($23.72 in general payments such as food, travel and fees) from 1 company. The largest payer was Amgen Inc. with $23.72.
| Company | Payments | Amount |
|---|---|---|
| Amgen Inc. AMGN | 1 | $23.72 |
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.