RxDoctor Payments Data

Christopher Differding, PA

Physician Assistant · Spring Valley, ILNPI 1295002715

Payments from drug & device makers

$140in general payments, 2019–2025

Across 6 payments — averaging $23.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Astellas Pharma US Inc$116
  • AbbVie$24

What the payments were for

  • Food & beverage$4129%
  • Education$9971%

General payments by program year

21
25

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.

CompanyPaymentsTotal
Astellas Pharma US Inc5$116
AbbVie1$24

How this compares

$140 in reported general payments places this provider in the 40th percentile of 3,912 physician assistant providers in Illinois.

See all physician assistant providers in Illinois

Medicare billing

Part B allowed, 2024
$327,250
Medicare patients
1,296
Services billed
6,267

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

DrugClaimsCost to plans & patients
MyrbetriqMirabegron237$132,987
GemtesaVibegron112$83,554
Mirabegron ErMirabegron14$11,576
Tamsulosin Hcl810$10,621
Solifenacin Succinate264$9,822
Alfuzosin Hcl ErAlfuzosin Hcl263$5,592
Fesoterodine Fumarate ErFesoterodine Fumarate30$3,833
Trospium Chloride105$3,459
NitrofurantoinNitrofurantoin Macrocrystal159$3,404
Bethanechol Chloride26$3,286
Estradiol39$2,543
Trimethoprim53$2,500
Fosfomycin Tromethamine14$2,478
Finasteride193$2,478
Potassium Citrate ErPotassium Citrate43$2,200

Paid to pharmacies, not to this prescriber.

Companies that both paid and supply prescribed drugs

These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.

CompanyPaid to this providerPart D cost of their drugs
Astellas Pharma US IncMyrbetriq$116$132,987237 claims

Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 40th percentile of 3,912 physician assistant providers in Illinois.

Other physician assistant in Spring Valley

See the full list for Illinois

Where these figures come from

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