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
Mailing addressPo Box 3217, Boulder, CO 80307-3217

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