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

Dr. Mark Harrison, MD

Individual provider Nephrology Physician · NPI 1508236910

Dr. Mark Harrison, MD is a Nephrology Physician in Boulder, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2015
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

546 14th St
Boulder, CO 80302-7806
Phone: (303) 938-8844
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence 0025415 (CO)

Record details

NPI number1508236910
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 28, 2015
Last updated in NPPESSeptember 28, 2015
Mailing address546 14th St, Boulder, CO 80302-7806

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