Internal Medicine, Medical Oncology · Baltimore, MD
NPI
1225079601
Since 2006
Specialty
Internal Medicine, Medical Oncology
Code 207RX0202X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
22 S Greene St
Baltimore, MD, 21201
Phone (410) 328-2567
Groups this clinician bills Medicare through
Medicare paid, 2024
$36K
495 services
Medicare patients, 2024
176
Average age 71
Drug cost, 2024
$1.2M
476 prescriptions
Company payments, 2025
$856
From 12 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Katherine H Tkaczuk was code 99214 (office e&m - established), 134 times for 106 patients. In total Katherine H Tkaczuk billed 495 services in 12 codes, and Medicare paid $36K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2011-03-08.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Facility | 134 | 106 | $73.01 | $9,783 |
| 99215 Office E&M - Established | Facility | 129 | 37 | $109.09 | $14K |
| 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 | Facility | 120 | 58 | $13.17 | $1,580 |
| 99233 Hospital E&M - Subsequent | Facility | 39 | 16 | $92.10 | $3,592 |
| 99223 Hospital E&M - Initial | Facility | 20 | 20 | $140.41 | $2,808 |
| 99213 Office E&M - Established | Facility | 11 | 11 | $33.46 | $368 |
| 99205 Office E&M - New | Facility | 11 | 11 | $148.39 | $1,632 |
By year: 2022 $39K for 459 services; 2023 $37K for 400 services; 2024 $36K for 495 services.
Medicare prescription drug claims, 2024
In 2024, the drug Katherine H Tkaczuk prescribed most often to Medicare patients was Letrozole, with 174 prescriptions and refills. In total Katherine H Tkaczuk wrote 476 Medicare prescriptions that cost $1.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Letrozole Generic | 174 | 436 | 55 | $4,655 |
| Anastrozole Generic | 36 | 92 | 16 | $1,063 |
| Verzenio Abemaciclib | 31 | 31 | Under 11 | $449K |
| Orserdu Elacestrant Hcl | 23 | 23 | Under 11 | $532K |
| Oxycodone Hcl Generic | 22 | 22 | Under 11 | $455 |
| Exemestane Generic | 16 | 36 | Under 11 | $3,276 |
| Lorazepam Generic | 13 | 13 | Under 11 | $43.15 |
| Eliquis Apixaban | 13 | 23 | Under 11 | $13K |
| Potassium Chloride Generic | 11 | 21 | Under 11 | $152 |
Brand drugs: 96 claims; generic drugs: 380 claims; opioid claims: 32.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Katherine H Tkaczuk $856 ($731 in general payments such as food, travel and fees and $125 for research) from 12 companies. The largest payer was Daiichi Sankyo Inc. with $222.
| Company | Payments | Amount |
|---|---|---|
| Daiichi Sankyo Inc. 4568.T | 6 | $222 |
| Novartis Pharmaceuticals Corporation NVS | 3 | $145 |
| Hoffmann-La Roche Limited ROG.SW | 1 | $125 |
| Gilead Sciences, Inc. GILD | 4 | $85.88 |
| AstraZeneca Pharmaceuticals LP AZN | 2 | $65.85 |
| Pfizer Inc. PFE | 2 | $49.1 |
| Merck Sharp & Dohme LLC MRK | 2 | $47.26 |
| TerSera Therapeutics LLC | 2 | $43.92 |
| Takeda Pharmaceuticals U.S.A., Inc. TAK | 1 | $35.75 |
| Genentech USA, Inc. ROG.SW | 1 | $18.84 |
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.