Has John Lake, MD received payments from drug or device companies?

Yes. Drug and device makers reported $10,704 in general payments to John Lake, MD across 13 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 John Lake, 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 John Lake, 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.

John Lake, MD

Gastroenterology · Minneapolis, MNNPI 1740360619

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $9,525 of the $10,704 with a category attached, or 89.0%.

$10,704in general payments, 2019–2025

Across 13 payments — averaging $823.42 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Eisai Inc.$6K
Mallinckrodt Hospital Products Inc.$5K

$215,550in research payments, 2019–2025

Across 56 payments — averaging $3849.11 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.

Mallinckrodt Enterprises LLC$111K
Intercept Pharmaceuticals, Inc.$104K

What the payments were for

Consulting fees$9,52589%
Travel & lodging$9529%
Food & beverage$2282%

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
Eisai Inc.	12	$5,699
Mallinckrodt Hospital Products Inc.	1	$5,005

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.

LENVIMA$5,442

How this compares

$10,704 in reported general payments places this provider in the 80th percentile of 365 gastroenterology providers in Minnesota.

See all gastroenterology providers in Minnesota →

Medicare billing

Part B allowed, 2024

$32,630

Medicare patients

210

Services billed

283

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
XifaxanRifaximin	61	$237,275
Everolimus	36	$85,075
Ursodiol	337	$53,801
Tacrolimus	321	$43,071
Sirolimus	44	$34,480
Mycophenolate Mofetil	193	$17,334
PrografTacrolimus	13	$16,713
Cyclosporine ModifiedCyclosporine, Modified	94	$15,411
Entecavir	40	$9,704
Tenofovir Disoproxil Fumarate	86	$9,155
Mycophenolic AcidMycophenolate Sodium	32	$7,233
Lactulose	56	$6,524
Azathioprine	60	$2,675
Prednisone	195	$2,070
Fludrocortisone Acetate	55	$1,529

Paid to pharmacies, not to this prescriber.

Other gastroenterology in Minneapolis

Joshua SloanMinneapolis$175K
Stuart AmateauMinneapolis$123K
Justin HowardMinneapolis$50K
Guru TrikudanathanMinneapolis$46K
Byron VaughnMinneapolis$46K
Martin FreemanMinneapolis$32K
Sasan MosadeghiMinneapolis$14K
Nabeel AzeemMinneapolis$12K
David LeungMinneapolis$12K
John KisielRochester$856K

See the full list for Minnesota →

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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