Internal Medicine, Hematology & Oncology · San Antonio, TX
NPI
1922032218
Since 2006
Specialty
Internal Medicine, Hematology & Oncology
Code 207RH0003X
Group practices
1
Medicare group memberships
Hospitals
0
Hospital affiliations
4383 Medical Dr
San Antonio, TX, 78229
Phone (210) 593-5700
Groups this clinician bills Medicare through
Medicare paid, 2024
$1.3M
118,232 services
Medicare patients, 2024
698
Average age 77
Drug cost, 2024
$4.5M
2,258 prescriptions
Company payments, 2025
$142
From 6 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Steven P Kalter was code J1439 (injection, ferric carboxymaltose, 1 mg), 39,750 times for 27 patients. In total Steven P Kalter billed 118,232 services in 127 codes, and Medicare paid $1.3M.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2013-07-11.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J1439 Injection, ferric carboxymaltose, 1 mg | Office | 39,750 | 27 | $0.84 | $34K |
| J0897 Injection, denosumab, 1 mg | Office | 6,300 | 17 | $20.16 | $127K |
| 80053 Clinical Chemistry | Office | 1,202 | 555 | $10.29 | $12K |
| J1437 Injection, ferric derisomaltose, 10 mg | Office | 1,100 | 11 | $16.19 | $18K |
| 36415 Venipuncture Blood Collection | Office | 1,094 | 549 | $8.64 | $9,455 |
| 85025 Blood Count | Office | 1,065 | 518 | $7.56 | $8,052 |
| J1100 Injection, dexamethasone sodium phosphate, 1 mg | Office | 790 | 11 | $0.09 | $70.22 |
| 99213 Office E&M - Established | Office | 726 | 434 | $57.06 | $41K |
| 99214 Office E&M - Established | Office | 504 | 288 | $87.13 | $44K |
| J2919 Injection, methylprednisolone sodium succinate, 5 mg | Office | 351 | 12 | $0.22 | $77.72 |
| 99231 Hospital E&M - Subsequent | Facility | 301 | 51 | $35.99 | $11K |
| 83615 Clinical Chemistry | Office | 298 | 116 | $5.80 | $1,729 |
| 82728 Clinical Chemistry | Office | 275 | 159 | $13.36 | $3,674 |
| 83540 Clinical Chemistry | Office | 271 | 154 | $6.34 | $1,718 |
| 83550 Clinical Chemistry | Office | 270 | 154 | $8.57 | $2,314 |
By year: 2022 $3.6M for 218,200 services; 2023 $3.0M for 223,213 services; 2024 $1.3M for 118,232 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 80053 Clinical Chemistry | 1,202 | 555 | $10.29 | $12K |
| 36415 Venipuncture Blood Collection | 1,094 | 549 | $8.64 | $9,455 |
| 85025 Blood Count | 1,065 | 518 | $7.56 | $8,052 |
| 83615 Clinical Chemistry | 298 | 116 | $5.80 | $1,729 |
| 82728 Clinical Chemistry | 275 | 159 | $13.36 | $3,674 |
| 83540 Clinical Chemistry | 271 | 154 | $6.34 | $1,718 |
| 83550 Clinical Chemistry | 270 | 154 | $8.57 | $2,314 |
| 86300 Immunoassay | 235 | 149 | $20.39 | $4,792 |
| 85027 Blood Count | 229 | 86 | $6.34 | $1,452 |
| 82378 Clinical Chemistry | 138 | 74 | $18.58 | $2,564 |
Medicare prescription drug claims, 2024
In 2024, the drug Steven P Kalter prescribed most often to Medicare patients was Letrozole, with 365 prescriptions and refills. In total Steven P Kalter wrote 2,258 Medicare prescriptions that cost $4.5M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Letrozole Generic | 365 | 994 | 110 | $11K |
| Tamoxifen Citrate Generic | 255 | 658 | 72 | $7,548 |
| Xarelto Rivaroxaban | 140 | 301 | 33 | $170K |
| Eliquis Apixaban | 111 | 186 | 27 | $109K |
| Calquence Acalabrutinib Maleate | 92 | 92 | 13 | $800K |
| Gabapentin Generic | 49 | 73 | 16 | $575 |
| Temazepam Generic | 47 | 47 | Under 11 | $604 |
| Alprazolam Generic | 46 | 50 | Under 11 | $409 |
| Prednisone Generic | 42 | 60 | 22 | $157 |
| Megestrol Acetate Generic | 39 | 60 | 11 | $2,320 |
| Bicalutamide Generic | 33 | 51 | Under 11 | $586 |
| Potassium Chloride Generic | 33 | 38 | Under 11 | $251 |
| Dexamethasone Generic | 32 | 32 | Under 11 | $821 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 32 | 32 | 11 | $405 |
| Anagrelide Hcl Generic | 31 | 65 | Under 11 | $3,666 |
Brand drugs: - claims; generic drugs: 1,639 claims; opioid claims: 67.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Steven P Kalter $142 ($142 in general payments such as food, travel and fees) from 6 companies. The largest payer was Amneal Pharmaceuticals LLC with $38.04.
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.