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

William Costas, PC

Organization Adult Development & Aging Psychologist · NPI 1619139896

William Costas, PC is an Adult Development & Aging Psychologist in Denver, Colorado. Licensed in Colorado. Registered with an NPI since 2008.

Licensed in
CO
In the registry since
2008
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

8751 E Hampden Ave Ste B-3
Denver, CO 80231-4952
Phone: (303) 919-0000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Development & Aging Psychologist (primary) Taxonomy 103TA0700X · Licence 1301 (CO)

Record details

NPI number1619139896
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Costas — President · (303) 919-0000
NPI enumeratedJune 27, 2008
Last updated in NPPESJune 27, 2008
Mailing address8751 E Hampden Ave, Ste B-3, Denver, CO 80231-4952

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