Internal Medicine, Medical Oncology · Saint Louis, MO
NPI
1225419344
Since 2015
Specialty
Internal Medicine, Medical Oncology
Code 207RX0202X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
1 Barnes Jewish Hospital Plz, Div Im Bone Marrow Transplant
Saint Louis, MO, 63110
Phone (314) 454-8304
Groups this clinician bills Medicare through
Medicare paid, 2024
$1.2M
47,930 services
Medicare patients, 2024
370
Average age 72
Drug cost, 2024
$4.8M
1,810 prescriptions
Company payments, 2025
$17K
From 7 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Zachary D Crees was code J1453 (injection, fosaprepitant, 1 mg), 5,400 times for 24 patients. In total Zachary D Crees billed 47,930 services in 135 codes, and Medicare paid $1.2M.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-04-17.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J1453 Injection, fosaprepitant, 1 mg | Office | 5,400 | 24 | $0.10 | $535 |
| J1100 Injection, dexamethasone sodium phosphate, 1 mg | Office | 826 | 52 | $0.09 | $74.33 |
| J2469 Injection, palonosetron hcl, 25 mcg | Office | 520 | 34 | $0.82 | $424 |
| 99233 Hospital E&M - Subsequent | Facility | 361 | 79 | $89.25 | $32K |
| J0640 Injection, leucovorin calcium, per 50 mg | Office | 306 | 12 | $3.52 | $1,077 |
| 99214 Office E&M - Established | Office | 245 | 90 | $95.45 | $23K |
| J1626 Injection, granisetron hydrochloride, 100 mcg | Office | 240 | 14 | $0.27 | $65.26 |
| J9190 Injection, fluorouracil, 500 mg | Office | 202 | 12 | $2.20 | $444 |
| 96375 Injection Administration | Office | 133 | 58 | $11.14 | $1,482 |
| 99232 Hospital E&M - Subsequent | Facility | 130 | 39 | $58.86 | $7,652 |
| 96413 Chemotherapy Administration | Office | 125 | 84 | $94.44 | $12K |
| 96367 Intravenous Infusion, Hydration | Office | 106 | 53 | $20.72 | $2,196 |
| 36415 Venipuncture Blood Collection | Office | 81 | 39 | $8.65 | $701 |
| 96372 Injection Administration | Office | 60 | 38 | $10.90 | $654 |
| 96417 Chemotherapy Administration | Office | 50 | 28 | $45.05 | $2,252 |
By year: 2022 $141K for 6,513 services; 2023 $1.0M for 61,002 services; 2024 $1.2M for 47,930 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 81 | 39 | $8.65 | $701 |
Medicare prescription drug claims, 2024
In 2024, the drug Zachary D Crees prescribed most often to Medicare patients was Valacyclovir (Valacyclovir Hcl), with 183 prescriptions and refills. In total Zachary D Crees wrote 1,810 Medicare prescriptions that cost $4.8M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Valacyclovir Valacyclovir Hcl | 183 | 286 | 41 | $6,095 |
| Acyclovir Generic | 140 | 228 | 31 | $1,723 |
| Ciprofloxacin Hcl Generic | 124 | 144 | 32 | $3,070 |
| Imatinib Mesylate Generic | 82 | 88 | Under 11 | $53K |
| Fluconazole Generic | 81 | 93 | 25 | $4,216 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 74 | 113 | 18 | $345 |
| Jakafi Ruxolitinib Phosphate | 64 | 64 | Under 11 | $847K |
| Venclexta Venetoclax | 55 | 55 | 27 | $156K |
| Allopurinol Generic | 53 | 86 | 18 | $253 |
| Dapsone Generic | 39 | 59 | Under 11 | $1,939 |
| Xospata Gilteritinib Fumarate | 36 | 36 | Under 11 | $606K |
| Ondansetron Hcl Generic | 32 | 32 | 12 | $238 |
| Prednisone Generic | 28 | 32 | Under 11 | $90.46 |
| Potassium Chloride Generic | 26 | 32 | Under 11 | $343 |
| Rezurock Belumosudil Mesylate | 26 | 26 | Under 11 | $447K |
Brand drugs: - claims; generic drugs: 1,382 claims; opioid claims: 28.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Zachary D Crees $17K ($17K in general payments such as food, travel and fees) from 7 companies. The largest payer was Gamida Cell Inc. with $12K.
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.