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

Dr. Marshelle Smith Warren, MD

Individual provider Allergy & Immunology Physician · NPI 1669859161

Dr. Marshelle Smith Warren, MD is an Allergy & Immunology Physician in Boulder, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2015
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

1460 Ithaca Dr
Boulder, CO 80305-6928
Phone: (303) 589-1304
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 29682 (CO)
Allergy Physician Taxonomy 207KA0200X · Licence 29682 (CO)

Record details

NPI number1669859161
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 4, 2015
Last updated in NPPESMay 4, 2015

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