Has Nalini Guda, MD received payments from drug or device companies?

Yes. Drug and device makers reported $28,777 in general payments to Nalini Guda, MD across 43 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 Nalini Guda, 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 Nalini Guda, 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.

Nalini Guda, MD

Gastroenterology · Milwaukee, WINPI 1750358420

Payments from drug & device makers

What this record shows

The money is spread across several categories — speaking fees (47.5%), consulting fees and food and beverage — rather than concentrated in one kind of arrangement. 13 manufacturers reported payments, led by Olympus America Inc. at 35.4% of the total. 2025 is the largest year on record at $11,886, more than ten times the $765 reported in 2019. Among gastroenterology clinicians in WI 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.

$28,777in general payments, 2019–2025

Across 43 payments — averaging $669.24 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Olympus America Inc.$10K
Boston Scientific$6K
Pentax Of America, Inc.$5K
Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$4K
Braintree Laboratories, Inc.$2K
Medtronic$1K
plus $1K from 7 others

$5,150in research payments, 2019–2025

Across 2 payments — averaging $2575.00 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.

AbbVie$4K
Chirhoclin, Inc.$1K

What the payments were for

Consulting fees$12,36043%
Speaking & faculty fees$13,68048%
Travel & lodging$9383%
Food & beverage$1,7696%
Education$300%

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
Olympus America Inc.	5	$10,178
Boston Scientific	11	$5,784
Pentax Of America, Inc.	2	$5,000
Salix Pharmaceuticals, A Division Of Bausch Health US, LLC	6	$3,772
Braintree Laboratories, Inc.	1	$1,650
Medtronic	1	$1,250
Cook Medical LLC	9	$802
Ambu Inc.	2	$162
Olympus Corporation Of The Americas	2	$84
Pfizer	1	$30
Fujifilm Healthcare Americas Corporation	1	$28
Iterative Scopes, Inc.	1	$24
Ferring Pharmaceuticals Inc.	1	$13

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

$28,777 in reported general payments places this provider in the 95th percentile of 285 gastroenterology providers in Wisconsin.

See all gastroenterology providers in Wisconsin →

Medicare billing

Part B allowed, 2024

$103,718

Medicare patients

436

Services billed

986

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
Humira(Cf) PenAdalimumab	21	$203,427
LinzessLinaclotide	47	$40,545
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates	110	$6,642
Mesalamine	13	$4,219
Dexlansoprazole DrDexlansoprazole	11	$2,918
Ursodiol	29	$2,844
Omeprazole	97	$2,116
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl	118	$1,675
CholestyramineCholestyramine (With Sugar)	14	$1,624
Pantoprazole Sodium	132	$1,473
Esomeprazole Magnesium	27	$1,447
Dicyclomine Hcl	46	$1,325
Pyridostigmine Bromide	27	$863
Azathioprine	21	$721
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl	33	$484

Paid to pharmacies, not to this prescriber.

Other gastroenterology in Milwaukee

Daniel SteinMilwaukee$227K
Poonam Beniwal-PatelMilwaukee$108K
Matthew PellerMilwaukee$63K
Chetan MittalMilwaukee$53K
Patrick SanvansonMilwaukee$40K
Kulwinder DuaMilwaukee$16K
Lyndon HernandezMilwaukee$15K
Hassaan ZiaMilwaukee$9K
Sunil KapurMilwaukee$8K
James Philip EstebanMilwaukee$7K

See the full list for Wisconsin →

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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