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Edit this profileWhere to find Elizabeth W. Lassen, PsyD
- Louisville location main office
80 Health Park Dr Ste 270, Louisville, CO 80027 - Boulder location
1650 38th St Ste 100E, Boulder, CO 80301
About Dr. Lassen
Elizabeth W. Lassen, PsyD is a psychologist — clinical practicing in Louisville, CO. According to Medicare claims data, Elizabeth cared for 58 Medicare patients across 393 services. The services billed most often include psychotherapy, 1 hour and psychiatric diagnostic evaluation. This provider record is associated with NPI 1457684938.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (303) 661-4100
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
80 HEALTH PARK DR STE 270
Louisville, CO 80027
1650 38th St Ste 100E
Boulder, CO 80301
Concerns and Conditions Addressed
Within Clinical Psychology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Abuse & trauma
Addiction
Anxiety
Behavioral
Child & adolescent
Cognitive
Dissociative
Eating & Body Image
Health & Pain
Identity
Interpersonal
Life transitions
Mood & Emotion
- Anger issues
- Bipolar disorder
- Illness anxiety disorder
- Panic disorder
- Postpartum depression
- Social anxiety disorder
- Specific phobias
Neurodevelopmental
Personal Growth
Personality
Self-harm & crisis
Sensory & neurological
Severe mental illness
Sleep
Stress & Lifestyle
Stress & lifestyle
Work & identity
Procedures & services
Brain & memory
Most searched procedures
Assessments
Behavioral Interventions
- Acceptance and commitment therapy (ACT)
- Anger management
- Dialectical behavior therapy (DBT)
- Exposure and response prevention (ERP)
- Habit reversal training
- Prolonged exposure therapy
Brain-based therapies
Child & adolescent
Crisis & safety
Group Programs
Individual therapy
Interpersonal
Mind-Body
Parenting & Support
Psychodynamic & Integrative
- Internal family systems (IFS)
- Interpersonal psychotherapy
- Psychodynamic psychotherapy
- Schema Therapy
Relationship & family
Skill building
Sleep & Health
Specialized therapy
Stress & Lifestyle
Testing & evaluation
- ADHD Evaluation
- Bariatric Surgery Evaluation
- Emotional Support Animal Evaluation
- Forensic psychological evaluation
- Neuropsychological Testing
- Psychoeducational Testing
Therapy formats
Trauma therapy
Procedures Most Often Billed to Medicare
393 services · 58 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 1 hour | Treatment | 90837 |
371 | More often than most peers in Psychologist — Clinical |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
22 | As often as other peers in Psychologist — Clinical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other psychologists in Louisville 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2011 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 1 hour 8
Providers in CO who bill this service to Medicare most often.
Common questions
What does Dr. Lassen specialize in?
Dr. Lassen is a psychologist in Louisville, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.
NPI registry
Where is Dr. Lassen located?
Dr. Lassen is listed at 80 Health Park Dr Ste 270, Louisville, CO 80027. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Lassen's phone number?
The number on file is (303) 661-4100. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Lassen's NPI number?
Dr. Lassen's National Provider Identifier is 1457684938. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Lassen go to medical school?
Dr. Lassen attended Other, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Lassen been practicing?
Dr. Lassen has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Lassen do most often?
According to Medicare billing data, Dr. Lassen provides treatments such as psychotherapy, 1 hour and psychiatric diagnostic evaluation. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Lassen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Lassen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.