RxDoctor Payments Data

Anil Chandraker

Nephrology · Worcester, MANPI 1972569176

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $149,574 of the $161,909 with a category attached, or 92.4%. 15 manufacturers reported payments, led by Vertex at 57.7% of the total. 2025 is the largest year on record at $60,822, more than ten times the $1,050 reported in 2019. Among nephrology clinicians in MA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$161,909in general payments, 2019–2025

Across 73 payments — averaging $2217.93 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Vertex$93K
  • AstraZeneca$18K
  • Sanofi-aventis U.S. LLC$16K
  • Immucor, Inc.$11K
  • Novartis$6K
  • Sanofi US Services Inc.$6K
  • plus $10K from 9 others
$1,322,358in research payments, 2019–2025

Across 65 payments — averaging $20,344 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.

  • CSL Behring$677K
  • Amgen$519K
  • Akebia Therapeutics Inc$86K
  • Sanofi US Services Inc.$32K
  • Shire North American Group Inc$8K

What the payments were for

  • Consulting fees$149,57492%
  • Speaking & faculty fees$2,6402%
  • Travel & lodging$8,4005%
  • Food & beverage$1,1891%
  • Education$1060%

General payments by program year

19
20
21
22
23
24
25

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.

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

$161,909 in reported general payments places this provider in the 95th percentile of 339 nephrology providers in Massachusetts.

See all nephrology providers in Massachusetts

Medicare billing

Part B allowed, 2024
$7,179
Medicare patients
31
Services billed
98

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

DrugClaimsCost to plans & patients
Tacrolimus14$1,496
Mycophenolic AcidMycophenolate Sodium11$1,439
Metoprolol Succinate20$641
Tamsulosin Hcl15$435
Omeprazole11$285
Prednisone33$260
Lisinopril16$109
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim12$58
Amlodipine Besylate14$49

Paid to pharmacies, not to this prescriber.

Other nephrology in Worcester

See the full list for Massachusetts

Where these figures come from

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