RxDoctor Payments Data

Serge Lartchenko, MD

Infectious Disease · Richardson, TXNPI 1992787089

Payments from drug & device makers

$7,456in general payments, 2019–2025

Across 436 payments — averaging $17.10 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

  • Viiv Healthcare Company$2K
  • Johnson & Johnson$1K
  • Merck$1K
  • Gilead$827
  • Insmed, Inc.$432
  • Theratechnologies Inc.$407
  • plus $2K from 21 others

What the payments were for

  • Food & beverage$7,01294%
  • Education$4446%

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

$7,456 in reported general payments places this provider in the 80th percentile of 576 infectious disease providers in Texas.

See all infectious disease providers in Texas

Medicare billing

Part B allowed, 2024
$334,418
Medicare patients
735
Services billed
3,740

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
BiktarvyBictegrav/Emtricit/Tenofov Ala58$218,902
SymtuzaDarunavir/Cob/Emtri/Tenof Alaf34$152,993
DovatoDolutegravir Sodium/Lamivudine25$78,779
TivicayDolutegravir Sodium18$66,582
PrezcobixDarunavir/Cobicistat24$64,156
OdefseyEmtricitab/Rilpiviri/Tenof Ala13$54,608
Darunavir25$40,098
IsentressRaltegravir Potassium12$26,813
Meropenem125$18,879
Daptomycin43$14,001
Vancomycin Hcl70$7,495
ErtapenemErtapenem Sodium12$5,928
Rifabutin11$5,236
Cefepime Hcl54$4,654
CeftriaxoneCeftriaxone Sodium51$4,425

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
GileadBiktarvy, Tybost$827$222,40770 claims
Janssen Products, LPSymtuza$319$152,99334 claims
Viiv Healthcare CompanyDovato, Tivicay$1,519$145,36143 claims
Johnson & JohnsonPrezcobix$1,317$64,15624 claims
MerckIsentress$1,231$26,81312 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 80th percentile of 576 infectious disease providers in Texas.

Other infectious disease in Richardson

See the full list for Texas

Where these figures come from

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