Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Gary F Marklin, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1396733416

Gary F Marklin, MD is a Critical Care Medicine (Internal Medicine) Physician in Saint Louis, Missouri. Licensed in Missouri. Registered with an NPI since 2005.

Licensed in
MO
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

12700 Southfork Rd
Saint Louis, MO 63128-3201
Phone: (314) 892-6565
Fax: (314) 892-4828
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence R3D74 (MO)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence R3D74 (MO)

Record details

NPI number1396733416
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 12, 2005
Last updated in NPPESMarch 14, 2017

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