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

Nisreen Khazaal, MD

Individual provider Internal Medicine Physician · NPI 1437367786

Nisreen Khazaal, MD is an Internal Medicine Physician in Boulder, Colorado. Licensed in Colorado, Connecticut and Ohio. Registered with an NPI since 2007.

Licensed in
CO, CT, OH
In the registry since
2007
Specialties on file
3
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

1900 Wardenburg Dr
Boulder, CO 80309-0001
Phone: (303) 492-5101
Fax: (303) 492-6861
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence DR.0057623 (CO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35094924 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 046944 (CT)

Record details

NPI number1437367786
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 18, 2007
Last updated in NPPESMay 30, 2024
Certification dateMay 30, 2024

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