Has Njambi Mathenge, MD received payments from drug or device companies?

Yes. Drug and device makers reported $1,660 in general payments to Njambi Mathenge, MD across 25 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Njambi Mathenge, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Njambi Mathenge, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Njambi Mathenge, MD

Cardiovascular Disease · Lebanon, NHNPI 1285053488

Payments from drug & device makers

What this record shows

This record is dominated by food and beverage: $1,321 of the $1,660 with a category attached, or 79.6%. 7 manufacturers reported payments, led by Alcon at 31.3% of the total. Reporting peaked in 2024 at $1,121 and has fallen 98.3% since, to $19 in 2025.

$1,660in general payments, 2019–2025

Across 25 payments — averaging $66.41 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Alcon$520
Teleflex LLC$291
Spectrawave, Inc$269
Medtronic$229
Reflow Medical Inc$199
Abiomed$136
plus $16 from 1 others

What the payments were for

Consulting fees$25015%
Travel & lodging$895%
Food & beverage$1,32180%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

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
Alcon	12	$520
Teleflex LLC	2	$291
Spectrawave, Inc	2	$269
Medtronic	5	$229
Reflow Medical Inc	2	$199
Abiomed	1	$136
Pfizer	1	$16

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

$1,660 in reported general payments places this provider in the 60th percentile of 112 cardiovascular disease providers in New Hampshire.

See all cardiovascular disease providers in New Hampshire →

Medicare billing

Part B allowed, 2024

$14,873

Medicare patients

Services billed

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
ClopidogrelClopidogrel Bisulfate	28	$276
Isosorbide Mononitrate ErIsosorbide Mononitrate	16	$185
Amlodipine Besylate	12	$104

Paid to pharmacies, not to this prescriber.

Other cardiovascular disease in Lebanon

Kevin KwakuLebanon$79K
Michael YoungLebanon$53K
Merle MyersonLebanon$15K
Ian GilchristLebanon$13K
Robert DangeloLebanon$10K
Rumman SyedLebanon$9K
Mohammadtokir MujtabaLebanon$8K
Lauren Gilstrap MilleyLebanon$5K
Fernando Contreras-ValdesLebanon$5K
David MinLebanon$3K

See the full list for New Hampshire →

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.

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