Internal Medicine, Hematology & Oncology · New York, NY
NPI
1407855307
Since 2005
Specialty
Internal Medicine, Hematology & Oncology
Code 207RH0003X
Group practices
1
Medicare group memberships
Hospitals
1
Hospital affiliations
12 E 86th St Ofc 4
New York, NY, 10028
Phone (212) 861-6660
Groups this clinician bills Medicare through
Medicare paid, 2024
$1.6M
141,472 services
Medicare patients, 2024
1,278
Average age 78
Drug cost, 2024
$4.0M
1,673 prescriptions
Company payments, 2025
$61.81
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Steven Gruenstein was code J1439 (injection, ferric carboxymaltose, 1 mg), 57,750 times for 62 patients. In total Steven Gruenstein billed 141,472 services in 223 codes, and Medicare paid $1.6M.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2020-01-17.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J1439 Injection, ferric carboxymaltose, 1 mg | Office | 57,750 | 62 | $0.88 | $51K |
| J0881 Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Office | 7,900 | 15 | $2.27 | $18K |
| 88185 Surgical Pathology Examination | Office | 5,989 | 232 | $22.24 | $133K |
| J0897 Injection, denosumab, 1 mg | Office | 4,440 | 47 | $20.31 | $90K |
| 36415 Venipuncture Blood Collection | Office | 2,942 | 1,173 | $8.65 | $25K |
| 85025 Blood Count | Office | 2,770 | 1,108 | $7.61 | $21K |
| 80053 Clinical Chemistry | Office | 2,602 | 1,068 | $10.35 | $27K |
| 84100 Clinical Chemistry | Office | 2,423 | 960 | $4.64 | $11K |
| 83615 Clinical Chemistry | Office | 2,367 | 939 | $5.92 | $14K |
| 83735 Clinical Chemistry | Office | 2,367 | 936 | $6.57 | $16K |
| 84550 Clinical Chemistry | Office | 2,363 | 936 | $4.42 | $10K |
| 99214 Office E&M - Established | Office | 1,791 | 750 | $109.75 | $197K |
| 82728 Clinical Chemistry | Office | 1,185 | 619 | $13.34 | $16K |
| 83540 Clinical Chemistry | Office | 1,177 | 615 | $6.33 | $7,450 |
| 83550 Clinical Chemistry | Office | 1,166 | 610 | $8.56 | $9,975 |
By year: 2022 $2.4M for 267,134 services; 2023 $2.2M for 204,298 services; 2024 $1.6M for 141,472 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 88185 Surgical Pathology Examination | 5,989 | 232 | $22.24 | $133K |
| 36415 Venipuncture Blood Collection | 2,942 | 1,173 | $8.65 | $25K |
| 85025 Blood Count | 2,770 | 1,108 | $7.61 | $21K |
| 80053 Clinical Chemistry | 2,602 | 1,068 | $10.35 | $27K |
| 84100 Clinical Chemistry | 2,423 | 960 | $4.64 | $11K |
| 83735 Clinical Chemistry | 2,367 | 936 | $6.57 | $16K |
| 83615 Clinical Chemistry | 2,367 | 939 | $5.92 | $14K |
| 84550 Clinical Chemistry | 2,363 | 936 | $4.42 | $10K |
| 82728 Clinical Chemistry | 1,185 | 619 | $13.34 | $16K |
| 83540 Clinical Chemistry | 1,177 | 615 | $6.33 | $7,450 |
Medicare prescription drug claims, 2024
In 2024, the drug Steven Gruenstein prescribed most often to Medicare patients was Aranesp (Darbepoetin Alfa In Polysorbat), with 216 prescriptions and refills. In total Steven Gruenstein wrote 1,673 Medicare prescriptions that cost $4.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Aranesp Darbepoetin Alfa In Polysorbat | 216 | 216 | 48 | $684K |
| Hydroxyurea Generic | 116 | 258 | 33 | $3,388 |
| Prednisone Generic | 72 | 86 | 18 | $346 |
| Akynzeo Fosnetupitant/Palonosetron | 64 | 64 | 14 | $61K |
| Xgeva Denosumab | 51 | 51 | 11 | $158K |
| Lupron Depot Leuprolide Acetate | 48 | 56 | Under 11 | $112K |
| Allopurinol Generic | 47 | 99 | 18 | $498 |
| Atorvastatin Calcium Generic | 46 | 126 | 12 | $916 |
| Procrit Epoetin Alfa | 42 | 43 | Under 11 | $83K |
| Eliquis Apixaban | 35 | 71 | 13 | $42K |
| Hydrochlorothiazide Generic | 30 | 40 | Under 11 | $246 |
| Omeprazole Generic | 30 | 56 | Under 11 | $503 |
| Neulasta Onpro Pegfilgrastim | 29 | 29 | Under 11 | $179K |
| Abiraterone Acetate Generic | 26 | 26 | Under 11 | $38K |
| Imbruvica Ibrutinib | 26 | 26 | Under 11 | $403K |
Brand drugs: - claims; generic drugs: 907 claims; opioid claims: 27.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Steven Gruenstein $61.81 ($61.81 in general payments such as food, travel and fees) from 2 companies. The largest payer was EMD Serono, Inc. with $39.61.
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.