Has Mohammed Ansari, MD received payments from drug or device companies?

Yes. Drug and device makers reported $25,362 in general payments to Mohammed Ansari, 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 Mohammed Ansari, 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 Mohammed Ansari, 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.

Mohammed Ansari, MD

Nephrology · Chicago, ILNPI 1487688131

Payments from drug & device makers

What this record shows

This record is dominated by consulting fees: $23,111 of the $25,362 with a category attached, or 91.1%. 5 manufacturers reported payments, led by Vertex at 45.0% of the total. Among nephrology clinicians in IL with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.

$25,362in general payments, 2019–2025

Across 25 payments — averaging $1014.49 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Vertex$11K
Apellis Pharmaceuticals, Inc.$7K
Mallinckrodt Enterprises LLC$7K
Novartis$46
Covidien LP$21

What the payments were for

Consulting fees$23,11191%
Travel & lodging$1,9818%
Food & beverage$2711%

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
Vertex	14	$11,423
Apellis Pharmaceuticals, Inc.	6	$7,314
Mallinckrodt Enterprises LLC	2	$6,559
Novartis	2	$46
Covidien LP	1	$21

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.

UVADEX$6,500

How this compares

$25,362 in reported general payments places this provider in the 90th percentile of 524 nephrology providers in Illinois.

See all nephrology providers in Illinois →

Medicare billing

Part B allowed, 2024

$85,553

Medicare patients

340

Services billed

1,120

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	74	$29,772
Tacrolimus	63	$10,479
Atovaquone	13	$9,205
Mycophenolate Mofetil	56	$8,205
RetacritEpoetin Alfa-Epbx	12	$8,181
EliquisApixaban	12	$7,805
Sulfamethoxazole-TrimethoprimSulfamethoxazole/Trimethoprim	456	$2,530
Nifedipine ErNifedipine	67	$1,824
Mycophenolic AcidMycophenolate Sodium	11	$1,143
Losartan Potassium	79	$1,083
Carvedilol	119	$1,065
Leflunomide	18	$942
Prednisone	98	$893
Valganciclovir Hcl	11	$761
Bumetanide	21	$743

Paid to pharmacies, not to this prescriber.

Other nephrology in Chicago

Myles WolfChicago$2.1M
Susan QuagginChicago$262K
Nicole StankusChicago$235K
Marco BonillaChicago$148K
Lorenzo GallonChicago$120K
Vikram AggarwalChicago$117K
Jay KoynerChicago$113K
Jose ArrudaChicago$107K
John FriedewaldChicago$93K
Casey GashtiChicago$74K

See the full list for Illinois →

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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