Has Mary Ann Lim, MD received payments from drug or device companies?

Yes. Drug and device makers reported $4,306 in general payments to Mary Ann Lim, MD across 16 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 Mary Ann Lim, 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 Mary Ann Lim, 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.

Mary Ann Lim, MD

Nephrology · Philadelphia, PANPI 1457573271

Payments from drug & device makers

$4,306in general payments, 2019–2025

Across 16 payments — averaging $269.15 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Gilead$4K
Sanofi-aventis U.S. LLC$350
AstraZeneca$139
Vifor Pharma, Inc.$66
Bayer$44
Otsuka America Pharmaceutical, Inc.$37
plus $41 from 2 others

What the payments were for

Consulting fees$3,48081%
Speaking & faculty fees$3508%
Food & beverage$47611%

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
Gilead	4	$3,630
Sanofi-aventis U.S. LLC	1	$350
AstraZeneca	4	$139
Vifor Pharma, Inc.	1	$66
Bayer	2	$44
Otsuka America Pharmaceutical, Inc.	2	$37
Mallinckrodt Enterprises LLC	1	$22
Aurinia Pharma U.S., Inc.	1	$19

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

$4,306 in reported general payments places this provider in the 80th percentile of 586 nephrology providers in Pennsylvania.

See all nephrology providers in Pennsylvania →

Medicare billing

Part B allowed, 2024

$53,840

Medicare patients

196

Services billed

703

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
Tacrolimus	125	$16,026
Cinacalcet Hcl	26	$13,310
Cyclosporine ModifiedCyclosporine, Modified	25	$6,367
Nifedipine ErNifedipine	180	$5,475
Prednisone	301	$2,034
Mycophenolate Mofetil	35	$2,016
Carvedilol	219	$1,680
Famotidine	123	$1,358
Pravastatin Sodium	125	$1,330
Atorvastatin Calcium	141	$1,245
Mycophenolic AcidMycophenolate Sodium	13	$1,235
Valsartan	23	$1,114
Tamsulosin Hcl	82	$774
Amlodipine Besylate	105	$750
Losartan Potassium	109	$727

Paid to pharmacies, not to this prescriber.

Other nephrology in Philadelphia

Katalin SusztakPhiladelphia$4.8M
Debbie Cohen SteinPhiladelphia$2.8M
Iris LeePhiladelphia$1.9M
Abdallahsassine GearaPhiladelphia$1.2M
Gaia MuallemPhiladelphia$942K
Rakesh GulatiPhiladelphia$660K
Roy BloomPhiladelphia$575K
Jonathan HoganPhiladelphia$551K
Laura DemberPhiladelphia$550K
Kwabena NtosoPhiladelphia$482K

See the full list for Pennsylvania →

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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