Doctor profile · Federal record

Dr. Gary Marklin, M.D.

Pulmonary Disease Physician · Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO

  • NPI 1396733416
  • 21 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
12700 Southfork RD
Saint Louis, MO 631283201
(314) 892-6565
fax (314) 892-4828

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
March 14, 2017
Specialty taxonomy
207RP1001X — NUCC code
State license (1)
Missouri #R3D74
Medicaid
MO #202165106

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396733416. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,072
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
La Jolla Pharmaceutical Company 1 $2,910.00
Paragonix Technologies, INC. 1 $161.57

By nature of payment

Honoraria
$2,910
Food and Beverage
$162

Frequently asked questions

Auto-generated from federal data
What is Dr. Gary Marklin's medical specialty?
Dr. Gary Marklin practices Pulmonary Disease Physician in Saint Louis, MO.
Where does Dr. Gary Marklin practice?
Dr. Gary Marklin practices at 12700 Southfork RD, Saint Louis, MO 631283201. Office phone: 3148926565.
What is Dr. Gary Marklin's NPI?
Dr. Gary Marklin's National Provider Identifier (NPI) is 1396733416, issued by NPPES.