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

MS. Heather L. O'Neil, LCSW

Individual provider Clinical Social Worker · NPI 1164664694

MS. Heather L. O'Neil, LCSW is a Clinical Social Worker in Denver, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2009
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1890 Gaylord St
Denver, CO 80206-1211
Phone: (720) 363-5793
Fax: (303) 322-3423
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 992331 (CO)

Record details

NPI number1164664694
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedMarch 30, 2009
Last updated in NPPESDecember 21, 2011

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