Provider Profile
Marissa Koziar, PhD
Unclaimed ProfileAbout Dr. Koziar
Marissa Koziar, PhD is a psychologist based in Nutley, NJ. According to Medicare claims data, Marissa cared for 632 Medicare patients across 1,479 services. The services billed most often include psychotherapy, 30 minutes, psychotherapy, 45 minutes, and psychiatric diagnostic evaluation.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (862) 208-9418
- Email not available
Practice Locations
138 BEECH ST
Nutley, NJ 07110
Concerns and Conditions Addressed
Within Psychology (Unspecified) 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
- ADHD
- Anxiety
- Depression
- Grief
- OCD
- Relationship issues
- Trauma
Abuse and relationships
- Gaslighting and manipulation
Addiction
- Alcohol use disorder
- Drug addiction
- Gambling Addiction
- Screen Addiction
- Shopping Addiction
Anxiety & Phobias
- Illness anxiety disorder
- Panic disorder
- Social anxiety disorder
- Specific phobias
Anxiety and phobias
- Agoraphobia
Behavioral & Emotional
- Anger issues
- Dissociative disorders
- Hoarding
- Self-harm
- Skin picking and hair pulling
Child & Adolescent
- Child behavioral problems
Child and teen issues
- School refusal
- Teen depression
Eating & Body Image
- Body image issues
- Eating disorders
Health Psychology
- Chronic Pain Coping
Identity and life stages
- Gender dysphoria
- Midlife Crisis
Interpersonal & Abuse
- Divorce adjustment
- Emotional abuse recovery
- Sex Problems
Life and social issues
- Caregiver stress for aging parents
- Loneliness and Social Isolation
Mindset and personality
- Perfectionism
Mood and emotions
- Overthinking and Rumination
- Seasonal affective disorder
Mood Disorders
- Bipolar disorder
- Postpartum Mood Issues
Neurodevelopmental
- Autism
- Reading and Spelling Difficulties
Personality Disorders
- Borderline personality disorder
Relationships
- People Pleasing and Codependency
Self-Esteem & Identity
- Imposter syndrome
- Low self-esteem
Sleep
- Insomnia
Sleep issues
- Chronic Nightmares
Stress & Lifestyle
- Adjustment disorder
- Burnout
- Caregiver burnout
- Chronic stress
Thought disorders
- Schizoaffective disorder
Trauma and abuse
- Chronic Illness Coping
- Religious trauma
Work and career
- Workplace bullying and harassment
Procedures & services
Most searched procedures
- Cognitive behavioral therapy
- Couples counseling
- EMDR
- Family therapy
- Psychological testing
- Therapy
Addiction support
- Relapse prevention planning
Alternative formats
- Walk and Talk Therapy
Behavioral Programs
- Anger management
- Executive Function Coaching
- Group psychotherapy
- Habit reversal training
Behavioral therapies
- Behavioral activation
Brain-based therapies
- Neurofeedback
Care delivery
- Online counseling
Child & Adolescent
- Parent coaching
- Play therapy
Evaluations & Assessments
- Autism Assessment
- Bariatric Surgery Evaluation
- Cognitive and memory testing
- Emotional Support Animal Evaluation
- Spinal Cord Stimulator Psychological Clearance
Evaluations and testing
- Adoption Psychological Evaluation
- Gender-affirming surgery evaluation
- Immigration Psychological Evaluation
- Neuropsychological Testing
Expressive therapies
- Music therapy
Family and parenting
- Parent-child interaction therapy
Mind-body therapies
- Guided Imagery and Visualization
Relationship Counseling
- Premarital counseling
- Sex therapy
Skills training
- Coping Skills Training
- Social skills training
Specialized therapy
- Cognitive processing therapy
- Prolonged exposure therapy
- Schema Therapy
Specialized Treatments
- Biofeedback
- Crisis intervention
- Hypnotherapy
- Ketamine-assisted counseling
- Mindfulness-based stress reduction
- Sleep counseling
Talk therapies
- Gestalt therapy
- Interpersonal psychotherapy
- Narrative therapy
Therapy Modalities
- Acceptance and commitment therapy
- Art therapy
- Brainspotting
- Dialectical Behavior Therapy
- Exposure and Response Prevention
- Internal family systems
- Psychodynamic psychotherapy
- Solution-focused brief therapy
- Somatic experiencing
Procedures Most Often Billed to Medicare
1,479 services · 632 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 30 minutes | Treatment | 90832 |
736 | More often than most peers in Psychologist |
| Psychotherapy, 45 minutes | Treatment | 90834 |
417 | More often than most peers in Psychologist |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
283 | More than most peers in Psychologist |
| Family psychotherapy with patient, 50 minutes | Treatment | 90847 |
32 | Less often than most peers in Psychologist |
| Family psychotherapy without patient, 50 minutes | Treatment | 90846 |
11 | Too few peers to compare |
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 1
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 Nutley 3
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 2009 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 30 minutes 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What does Marissa Koziar specialize in?
Marissa Koziar is a psychologist in Nutley, NJ. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Marissa Koziar located?
Marissa Koziar is listed at 138 Beech St, Nutley, NJ 07110. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Marissa Koziar's phone number?
The number on file is (862) 208-9418. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Marissa Koziar's NPI number?
Marissa Koziar's National Provider Identifier is 1316227036. 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 Marissa Koziar train?
Marissa Koziar attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
How long has Marissa Koziar been practicing?
Marissa Koziar has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
What does Marissa Koziar do most often?
According to Medicare billing data, Marissa Koziar 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
Has Marissa Koziar confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Marissa Koziar. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.