RxDoctor Payments Data

Quang Phan, MD

Gastroenterology · Garden Grove, CANPI 1982698957

Payments from drug & device makers

$63,530in general payments, 2019–2025

Across 276 payments — averaging $230.18 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Gilead$58K
  • Lilly USA, LLC$954
  • AbbVie$759
  • Intercept Pharmaceuticals, Inc.$675
  • Braintree Laboratories, Inc.$473
  • Galderma Laboratories, L.p.$269
  • plus $2K from 19 others

What the payments were for

  • Consulting fees$2,3004%
  • Speaking & faculty fees$50,10079%
  • Travel & lodging$1,2762%
  • Food & beverage$9,40015%
  • Education$320%
  • Gifts$4211%

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.

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

$63,530 in reported general payments places this provider in the 85th percentile of 1,885 gastroenterology providers in California.

See all gastroenterology providers in California

Medicare billing

Part B allowed, 2024
$166,930
Medicare patients
595
Services billed
1,089

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
VemlidyTenofovir Alafenamide630$956,636
Entecavir197$70,356
Tenofovir Disoproxil Fumarate92$27,843
Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates366$22,648
TaliciaOmeprazole/Amoxicill/Rifabutin25$19,468
BaracludeEntecavir14$19,321
LinzessLinaclotide14$16,597
Ursodiol46$8,798
Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl228$4,666
SuprepSodium, Potassium,mag Sulfates25$2,690
Mesalamine ErMesalamine11$2,654
Peg-3350 And ElectrolytesPeg3350/Sod Sulf,bicarb,cl/Kcl69$1,314
Baclofen27$806
Omeprazole68$762
Sucralfate21$734

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
GileadVemlidy$58,041$956,636630 claims
Redhill Biopharma Inc.Talicia$128$19,46825 claims
AbbVieLinzess$759$16,59714 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 85th percentile of 1,885 gastroenterology providers in California.

Other gastroenterology in Garden Grove

See the full list for California

Where these figures come from

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