Barbara Greco
Nephrology · Springfield, MANPI 1366428682
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (59.7%), food and beverage and speaking fees — rather than concentrated in one kind of arrangement. AstraZeneca accounts for 71.9% of it on its own, with 15 other manufacturers making up the rest. 2025 is the largest year on record at $1,960, 5.8 times the $337 reported in 2019.
Across 52 payments — averaging $63.13 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$2K
- Vifor Pharma, Inc.$126
- OPKO Pharmaceuticals, LLC$117
- Novartis$113
- Akebia Therapeutics Inc$92
- GSK$85
- plus $391 from 10 others
Across 143 payments — averaging $879.32 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Akebia Therapeutics Inc$50K
- CSL Behring$39K
- AstraZeneca$28K
- Janssen Research & Development, LLC$8K
What the payments were for
- Consulting fees$1,96060%
- Speaking & faculty fees$1505%
- Food & beverage$1,07333%
- Education$993%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| AstraZeneca(2 entities) | 10 | $2,359 |
| Vifor Pharma, Inc. | 5 | $126 |
| OPKO Pharmaceuticals, LLC | 6 | $117 |
| Novartis | 6 | $113 |
| Akebia Therapeutics Inc | 3 | $92 |
| GSK | 4 | $85 |
| Mallinckrodt Hospital Products Inc. | 2 | $70 |
| Eurofins Viracor, LLC | 2 | $67 |
| Alnylam Pharmaceuticals Inc. | 4 | $65 |
| Amgen | 3 | $51 |
| Fresenius USA Marketing, Inc. | 2 | $36 |
| Baxter Healthcare | 1 | $31 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $29 |
| Sanofi | 1 | $16 |
| Johnson & Johnson | 1 | $13 |
| Otsuka America Pharmaceutical, Inc. | 1 | $12 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
How this compares
$3,283 in reported general payments places this provider in the 75th percentile of 339 nephrology providers in Massachusetts.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Envarsus XrTacrolimus | 39 | $48,002 |
| FarxigaDapagliflozin Propanediol | 63 | $44,217 |
| JardianceEmpagliflozin | 41 | $26,644 |
| RayaldeeCalcifediol | 19 | $26,310 |
| Cinacalcet Hcl | 52 | $6,855 |
| JanuviaSitagliptin Phosphate | 11 | $5,732 |
| Sevelamer Carbonate | 30 | $2,889 |
| Nifedipine ErNifedipine | 97 | $2,606 |
| Mycophenolic AcidMycophenolate Sodium | 33 | $1,611 |
| Atorvastatin Calcium | 123 | $1,430 |
| Lisinopril | 157 | $1,415 |
| Amlodipine Besylate | 195 | $1,288 |
| Carvedilol | 123 | $1,237 |
| Losartan Potassium | 114 | $1,143 |
| Potassium Citrate ErPotassium Citrate | 13 | $1,080 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| AstraZenecaFarxiga | $2,359 | $44,21763 claims |
| OPKO Pharmaceuticals, LLCRayaldee | $117 | $26,31019 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 75th percentile of 339 nephrology providers in Massachusetts.
Other nephrology in Springfield
- Michael GermainSpringfield$443K
- Jonathan SlaterSpringfield$83K
- David FriedmanBoston$19.8M
- Martin PollakBoston$19.8M
- Dennis AusielloBoston$4.6M
- Ajay SinghBoston$916K
- Rekha AbichandaniCambridge$442K
- Leslie FangBoston$388K
- Nicolaos AthienitesBrockton$294K
- Jean FrancisBoston$244K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.