Jessica Tangren, MD
Nephrology · Boston, MANPI 1689968810
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $1,608 of the $2,089 with a category attached, or 77.0%. Alnylam Pharmaceuticals Inc. accounts for 83.0% of it on its own, with 3 other manufacturers making up the rest. Reporting peaked in 2024 at $1,840 and has fallen 94.1% since, to $108 in 2025.
Across 12 payments — averaging $174.06 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Alnylam Pharmaceuticals Inc.$2K
- AstraZeneca$213
- W. L. Gore & Associates, Inc.$141
- Travere Therapeutics, Inc.$2
Across 15 payments — averaging $7699.37 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.
- AstraZeneca$87K
- Alnylam Pharmaceuticals Inc.$29K
What the payments were for
- Travel & lodging$1,60877%
- Food & beverage$47923%
- Education$20%
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 |
|---|---|---|
| Alnylam Pharmaceuticals Inc. | 6 | $1,734 |
| AstraZeneca | 4 | $213 |
| W. L. Gore & Associates, Inc. | 1 | $141 |
| Travere Therapeutics, Inc. | 1 | $2 |
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
$2,089 in reported general payments places this provider in the 70th percentile of 339 nephrology providers in Massachusetts.
Medicare billing
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
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| FarxigaDapagliflozin Propanediol | 14 | $12,014 |
| Losartan Potassium | 30 | $304 |
| Doxazosin Mesylate | 13 | $225 |
| Lisinopril | 13 | $178 |
| Amlodipine Besylate | 22 | $135 |
| Clonidine Hcl | 12 | $128 |
| Carvedilol | 12 | $86 |
| Triamterene-HydrochlorothiazidTriamterene/Hydrochlorothiazid | 14 | $42 |
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 | $213 | $12,01414 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 70th percentile of 339 nephrology providers in Massachusetts.
Other nephrology in Boston
- David FriedmanBoston$19.8M
- Martin PollakBoston$19.8M
- Dennis AusielloBoston$4.6M
- Ajay SinghBoston$916K
- Leslie FangBoston$388K
- Jean FrancisBoston$244K
- Joseph BonventreBoston$175K
- Andrew AllegrettiBoston$139K
- Ravi ThadhaniBoston$115K
- Meghan SiseBoston$113K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.