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

Mrs. Isabel Koelsch, MD

Individual provider Dermatology Physician · NPI 1801930110

Mrs. Isabel Koelsch, MD is a Dermatology Physician in Longmont, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2007
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

1850 Mountain View Ave
Longmont, CO 80501-3212
Phone: (303) 776-1500
Fax: (303) 772-2995
Show map & directions

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

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 23406 (CO)

Record details

NPI number1801930110
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedFebruary 19, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1850 Mountain View Ave, Longmont, CO 80501-3212

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