Has Antonio Guasch, MD received payments from drug or device companies?

Yes. Drug and device makers reported $4,112 in general payments to Antonio Guasch, MD across 6 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 Antonio Guasch, 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 Antonio Guasch, 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.

Antonio Guasch, MD

Nephrology · Atlanta, GANPI 1508876509

Payments from drug & device makers

What this record shows

This record is dominated by speaking fees: $3,250 of the $4,112 with a category attached, or 79.0%. Mallinckrodt Enterprises LLC accounts for 96.6% of it on its own, with 2 other manufacturers making up the rest. Reporting peaked in 2019 at $3,972 and has fallen 97.0% since, to $120 in 2025.

$4,112in general payments, 2019–2025

Across 6 payments — averaging $685.28 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Mallinckrodt Enterprises LLC$4K
Apellis Pharmaceuticals, Inc.$120
Aurinia Pharma U.S., Inc.$20

$29,340in research payments, 2019–2025

Across 17 payments — averaging $1725.89 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.

Travere Therapeutics, Inc.$18K
Boehringer Ingelheim$10K
Boehringer Ingelheim RCV GmbH & Co KG$449
Boehringer Ingelheim France S.a.s.$164

What the payments were for

Speaking & faculty fees$3,25079%
Travel & lodging$63215%
Food & beverage$2105%
Education$200%

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
Mallinckrodt Enterprises LLC	4	$3,972
Apellis Pharmaceuticals, Inc.	1	$120
Aurinia Pharma U.S., Inc.	1	$20

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.

ACTHAR$3,882

How this compares

$4,112 in reported general payments places this provider in the 70th percentile of 388 nephrology providers in Georgia.

See all nephrology providers in Georgia →

Medicare billing

Part B allowed, 2024

$6,892

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
Cinacalcet Hcl	37	$8,935
Tacrolimus	13	$3,158
Mycophenolate Mofetil	18	$2,152
Nifedipine ErNifedipine	59	$1,373
Fluconazole	11	$1,006
Prednisone	93	$390
Tamsulosin Hcl	26	$322
Atorvastatin Calcium	47	$319
Pantoprazole Sodium	14	$188
Metoprolol Succinate	17	$169
Famotidine	11	$147
Carvedilol	17	$111
Potassium Chloride	12	$100
Amlodipine Besylate	18	$96
Omeprazole	12	$91

Paid to pharmacies, not to this prescriber.

Other nephrology in Atlanta

Sheldon ShoreAtlanta$474K
Christina KleinAtlanta$137K
Mary MuonekeAtlanta$119K
Frederic Rahbari OskouiAtlanta$88K
Tarik LalwaniAtlanta$69K
Haimanot WasseAtlanta$60K
Janice LeaAtlanta$21K
Vandana NiyyarAtlanta$11K
Gautham ViswanathanAtlanta$10K
Lara WatkinsAtlanta$8K

See the full list for Georgia →

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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