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Edit this profileAt a glance
- 510 S Grand Ave, Suite 200, Glendora, CA 91741
About Dr. Marshall
Catherine A. Marshall, PsyD is a psychologist — clinical based in Glendora, CA. Medicare claims data shows Catherine provided 213 services to 79 patients. The services billed most often include psychotherapy, 30 minutes and psychotherapy, 45 minutes. The provider's National Provider Identifier (NPI) is 1447686787.
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
- (626) 914-1980
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
510 S GRAND AVE SUITE 200
Glendora, CA 91741
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
213 services · 79 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 30 minutes | Treatment | 90832 |
142 | As often as other peers in Psychologist — Clinical |
| Psychotherapy, 45 minutes | Treatment | 90834 |
71 | Less often than most 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.
Other psychologists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 31 related providers in 4 groups
Other psychologists in Glendora 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 30 minutes 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Marshall specialize in?
Dr. Marshall is a psychologist in Glendora, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.
NPI registry
Where is Dr. Marshall located?
Dr. Marshall is listed at 510 S Grand Ave Suite 200, Glendora, CA 91741. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Marshall's phone number?
The number on file is (626) 914-1980. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Marshall?
Dr. Marshall's National Provider Identifier is 1447686787. 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. Marshall go to medical school?
Dr. Marshall attended Other, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Marshall have?
Dr. Marshall has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Marshall do most often?
According to Medicare billing data, Dr. Marshall provides treatments such as psychotherapy, 30 minutes and psychotherapy, 45 minutes. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Marshall's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Marshall. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.