Internal Medicine, Nephrology · Boston, MA
NPI
1316912033
Since 2006
Specialty
Internal Medicine, Nephrology
Code 207RN0300X
Group practices
3
Medicare group memberships
Hospitals
5
Hospital affiliations
101 Merrimac St, 1st Floor
Boston, MA, 02114
Phone (617) 726-4132
Groups this clinician bills Medicare through
Medicare paid, 2024
$969K
33,397 services
Medicare patients, 2024
316
Average age 74
Drug cost, 2024
$1.2M
490 prescriptions
Company payments, 2025
$3,156
From 5 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by John L Niles was code Q5115 (injection, rituximab-abbs, biosimilar, (truxima), 10 mg), 22,850 times for 159 patients. In total John L Niles billed 33,397 services in 43 codes, and Medicare paid $969K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2015-02-04.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| Q5115 Injection, rituximab-abbs, biosimilar, (truxima), 10 mg | Office | 22,850 | 159 | $26.02 | $595K |
| J2919 Injection, methylprednisolone sodium succinate, 5 mg | Office | 1,576 | 149 | $0.23 | $359 |
| 96415 Chemotherapy Administration | Office | 732 | 166 | $24.91 | $18K |
| 85025 Blood Count | Office | 436 | 260 | $7.60 | $3,315 |
| 81003 Clinical Chemistry | Office | 403 | 260 | $2.20 | $887 |
| 96413 Chemotherapy Administration | Office | 259 | 168 | $118.78 | $31K |
| 96375 Injection Administration | Office | 253 | 169 | $13.83 | $3,500 |
| 36415 Venipuncture Blood Collection | Office | 201 | 158 | $8.65 | $1,739 |
| 99214 Office E&M - Established | Office | 118 | 90 | $99.23 | $12K |
| 99215 Office E&M - Established | Office | 73 | 56 | $148.88 | $11K |
| 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 | 38 | 33 | $13.82 | $525 |
| J2920 Injection, methylprednisolone sodium succinate, up to 40 mg | Office | 28 | 28 | $3.28 | $91.84 |
| J2930 Injection, methylprednisolone sodium succinate, up to 125 mg | Office | 21 | 19 | $4.61 | $96.81 |
| G0008 Administration of influenza virus vaccine | Office | 11 | 11 | $35.30 | $388 |
| 99204 Office E&M - New | Office | 11 | 11 | $136.11 | $1,497 |
By year: 2022 $1.5M for 35,761 services; 2023 $1.1M for 36,318 services; 2024 $969K for 33,397 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 85025 Blood Count | 436 | 260 | $7.60 | $3,315 |
| 81003 Clinical Chemistry | 403 | 260 | $2.20 | $887 |
| 36415 Venipuncture Blood Collection | 201 | 158 | $8.65 | $1,739 |
Medicare prescription drug claims, 2024
In 2024, the drug John L Niles prescribed most often to Medicare patients was Prednisone, with 39 prescriptions and refills. In total John L Niles wrote 490 Medicare prescriptions that cost $1.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Prednisone Generic | 39 | 110 | 18 | $528 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 24 | 61 | 11 | $567 |
| Losartan Potassium Generic | 24 | 72 | 13 | $194 |
| Amlodipine Besylate Generic | 23 | 67 | Under 11 | $269 |
| Furosemide Generic | 21 | 62 | Under 11 | $245 |
| Omeprazole Generic | 19 | 56 | Under 11 | $327 |
| Carvedilol Generic | 19 | 57 | Under 11 | $291 |
| Tavneos Avacopan | 18 | 18 | Under 11 | $283K |
| Atorvastatin Calcium Generic | 16 | 47 | Under 11 | $148 |
| Gamunex-C Immune Globul G/Gly/Iga Avg 46 | 16 | 16 | Under 11 | $83K |
| Allopurinol Generic | 15 | 45 | Under 11 | $180 |
| Losartan-Hydrochlorothiazide Losartan/Hydrochlorothiazide | 13 | 39 | Under 11 | $305 |
| Cyclophosphamide Generic | 12 | 17 | Under 11 | $2,237 |
| Bivigam Immun Glob G(Igg)/Gly/Iga Ov50 | 11 | 13 | Under 11 | $61K |
| Fluocinonide Generic | 11 | 11 | Under 11 | $412 |
Brand drugs: - claims; generic drugs: 376 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid John L Niles $3,156 ($3,156 in general payments such as food, travel and fees) from 5 companies. The largest payer was Alexion Pharmaceuticals, Inc. with $2,793.
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.