RxDoctor Payments Data

Suk Charles Whang, MD

Gastroenterology · Travis Afb, CANPI 1619041316

Payments from drug & device makers

$3,628in general payments, 2019–2025

Across 166 payments — averaging $21.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • AbbVie$744
  • Takeda Pharmaceuticals U.S.A., Inc.$484
  • Johnson & Johnson$468
  • Gilead$242
  • Lilly USA, LLC$171
  • Aimmune Therapeutics, Inc.$144
  • plus $1K from 24 others

What the payments were for

  • Food & beverage$3,628100%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

19
20
21
22
23
24
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.

How this compares

$3,628 in reported general payments places this provider in the 55th percentile of 1,885 gastroenterology providers in California.

See all gastroenterology providers in California

Medicare billing

Part B allowed, 2024
$187,973
Medicare patients
540
Services billed
1,365

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
LinzessLinaclotide79$57,155
CreonLipase/Protease/Amylase16$45,369
VemlidyTenofovir Alafenamide11$14,177
Sucralfate70$7,936
MovantikNaloxegol Oxalate13$6,124
Omeprazole303$3,764
Pantoprazole Sodium176$3,289
Lubiprostone17$3,166
Esomeprazole Magnesium26$2,470
Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl92$1,559
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates21$1,533
Famotidine82$1,044
CholestyramineCholestyramine (With Sugar)11$1,018
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl51$717
Dicyclomine Hcl56$512

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
AbbVieLinzess, Creon$744$102,52495 claims
GileadVemlidy$242$14,17711 claims
Redhill Biopharma Inc.Movantik$55$6,12413 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 55th percentile of 1,885 gastroenterology providers in California.

Other gastroenterology in Travis Afb

See the full list for California

Where these figures come from

Is this you, or does something look wrong? →