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

Dr. Elizabeth Whitley Lassen, PSYD

Individual provider Clinical Psychologist · NPI 1457684938

Dr. Elizabeth Whitley Lassen, PSYD is a Clinical Psychologist in Louisville, Colorado. Qualified in 2011, 15 years ago. Practices with Portercare Adventist Health System, a 767-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and Colorado.

Years since qualifying
15
Licensed in
CA, CO
In the registry since
2009
Specialties on file
2
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

80 Health Park Dr Ste 270
Louisville, CO 80027-4644
Phone: (303) 661-4100
Fax: (720) 321-8969
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1650 38th St Ste 100e, Boulder, CO 80301-2624 — (720) 254-1389

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY.4381 (CO)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY25272 (CA)

Record details

NPI number1457684938
Entity typeIndividual (Type 1)
GenderFemale
Credentials PSYD
Sole proprietorYes
NPI enumeratedSeptember 15, 2009
Last updated in NPPESFebruary 21, 2025
Certification dateFebruary 21, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Portercare Adventist Health System — 767 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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