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

MS. Margaret Leigh Chancellor, BS, CACIII

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1518021351

MS. Margaret Leigh Chancellor, BS, CACIII is an Addiction (Substance Use Disorder) Counselor in Thornton, Colorado. Licensed in Colorado. Registered with an NPI since 2006.

Licensed in
CO
In the registry since
2006
What do these letters mean?
BS — Bachelor of Science
An undergraduate science degree.

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Practice location Address checks out

621 W 96th Ave
Thornton, CO 80260-5469
Phone: (303) 427-1386
Fax: (303) 650-8413
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 5626 (CO)

Record details

NPI number1518021351
Entity typeIndividual (Type 1)
GenderFemale
Credentials BS , CACIII
Sole proprietorNo
NPI enumeratedDecember 19, 2006
Last updated in NPPESJuly 8, 2007

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