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

Mark Oltermann, MD

Individual provider Internal Medicine Physician · NPI 1154353357

Mark Oltermann, MD is an Internal Medicine Physician in Fort Worth, Texas. Works from 2 locations. Licensed in Montana, Nevada and Texas.

Licensed in
MT, NV, TX
In the registry since
2006
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1500 S Main St
Fort Worth, TX 76104
Phone: (817) 921-3431
Show map & directions

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

Additional practice locations (1)

  • 1155 Mill St, Reno, NV 89502-1576 — (775) 982-7878

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence G8323 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence G8323 (TX)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 16376 (NV)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence MED-PHYS-LIC-76336 (MT)

Record details

NPI number1154353357
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2006
Last updated in NPPESJune 15, 2021
Certification dateJune 15, 2021

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