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

Dr. Mark Petrun, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1962472803

Dr. Mark Petrun, MD is a Critical Care Medicine (Internal Medicine) Physician in Fort Collins, Colorado. Licensed in Colorado. Registered with an NPI since 2006.

Licensed in
CO
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.

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Practice location Address checks out

2121 E Harmony Rd Ste 300
Fort Collins, CO 80528-3400
Phone: (970) 224-9102
Fax: (970) 224-9112
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 DR.0024745 (CO)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence DR.0024745 (CO)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence DR.0024745 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR.0024745 (CO)

Record details

NPI number1962472803
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESAugust 16, 2016
Mailing address2121 E Harmony Rd, Suite 300, Fort Collins, CO 80528-3400

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