Where to find Karen Papavasiliou, APN
- Hackensack location main office
211 Essex St, Hackensack, NJ 07601 - Glen Rock location
65 Harristown Rd, Glen Rock, NJ 07452
About Karen Papavasiliou
Karen Papavasiliou, APN is a nurse practitioner — psychiatric/mental health practicing in Hackensack, NJ. According to Medicare claims data, Karen cared for 193 Medicare patients across 1,470 services. The services billed most often include psychotherapy with evaluation and management visit, 30 minutes, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1407577638.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (201) 487-1240
- Email not available
Practice Locations
211 ESSEX ST
Hackensack, NJ 07601
65 Harristown Rd
Glen Rock, NJ 07452
Conditions and Services Within This Provider's Scope
Within Nurse Practitioner - Psychiatric/Mental Health 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
Addiction
Addiction & substance use
Anxiety & panic
Attention & learning
Behavioral health
Behavioral issues
Child & adolescent
- Oppositional defiant disorder
- Severe Temper Tantrums and Meltdowns
Cognitive disorders
- Dementia
- Executive dysfunction
Cognitive issues
- Brain Fog and Mental Fatigue
- Dementia with behavioral symptoms
- Mild cognitive impairment
Crisis & safety
Eating disorders
- Anorexia nervosa
- Binge eating
- Eating disorders
Medication side effects
- Involuntary Twitches from Meds
Mood disorders
- Bipolar disorder
- Depression
- Emotional Numbness
- Menopause Mood Swings and Anxiety
- Mood swings
- Postpartum depression
- Premenstrual dysphoric disorder
- Seasonal affective disorder
Obsessions & compulsions
Personality disorders
Psychotic disorders
- Delusional disorder
- Hearing Voices and Hallucinations
- Schizoaffective disorder
- Schizophrenia
Sleep
- Chronic Nightmares
- Insomnia and Sleep Problems
- Neurologic sleep disorders
Stress & lifestyle
Trauma & stress
Procedures & services
Addiction treatment
- Dual Diagnosis Addiction Treatment
- Suboxone Treatment and MAT
- Vivitrol and Naltrexone Treatment
Consultations
- Holistic Mental Health Consultation
- Transcranial Magnetic Stimulation (TMS) Consultation
Crisis care
- Urgent Psychiatric Consultation
Evaluations & paperwork
- Child Psychiatric Evaluation
- Cognitive Assessment
- Disability Mental Health Evaluation
- Gender-Affirming Mental Health Letter
- Psychiatric Clearance for Surgery
- School Accommodation Evaluation
- Treatment-Resistant Depression Evaluation
Evaluations & testing
- ADHD Testing and Diagnosis
- Adolescent Psychiatric Evaluation
- DNA drug response testing
- Emotional Support Animal (ESA) Evaluation
- FMLA and Mental Health Leave Paperwork
- Postpartum Mental Health Screening
- Psychiatric evaluation
- Second Opinion on Mental Health Diagnosis
Interventional treatments
- Ketamine Therapy Consultation
- Spravato (Esketamine) Treatment
Medication management
- Antidepressant Prescription
- Antipsychotic Medication Management
- Anxiety Medication Management
- Benzodiazepine Tapering
- Lab Work for Psychiatric Medications
- Lithium Monitoring and Blood Level Checks
- Long-Acting Antipsychotic Shot
- Medication management
- Mood Stabilizer Management
- Non-Stimulant ADHD Medication Management
- Prescription Refill Visit
- Sleep Medication Management
- Smoking Cessation Medication Visit
- Stimulant Medication Monitoring
- Switching Antidepressants
- Tapering Off Psychiatric Medication
- Tardive Dyskinesia Treatment
- Weight Management for Psychiatric Med Side Effects
Telehealth
Therapy
- Acceptance and commitment therapy (ACT)
- Anger Management Counseling
- Bereavement counseling
- Insomnia Treatment (CBT-I)
- Somatic Calming and Relaxation Training
- Suicide safety planning
Therapy & counseling
- Cognitive Behavioral Therapy (CBT)
- Couples and Family Mental Health Counseling
- Dialectical Behavior Therapy (DBT) Skills
- Exposure and Response Prevention
- Mindfulness-based stress reduction
- Prolonged exposure therapy
- Supportive psychotherapy
Procedures Most Often Billed to Medicare
1,470 services · 193 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
589 | More than most peers in Psychiatric Nurse Practitioner |
| Psychotherapy with evaluation and management visit, 45 minutes | Treatment | 90836 |
149 | More often than most peers in Psychiatric Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
475 | More than most peers in Psychiatric Nurse Practitioner |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
257 | More than most peers in Psychiatric Nurse Practitioner |
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.
Related specialists at this location 2
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.
Other nurse practitioners in Hackensack 6
Same specialty, same city.
More connections — 7 related providers in 1 group
Also performs Psychotherapy with evaluation and management visit, 30 minutes 7
Providers in NJ who bill this service to Medicare most often.
Common questions
What is Karen Papavasiliou's specialty?
Karen Papavasiliou is a nurse practitioner in Hackensack, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nurse Practitioner — Psychiatric/Mental Health”.
NPI registry
Where can I find Karen Papavasiliou?
Karen Papavasiliou is listed at 211 Essex St, Hackensack, NJ 07601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Karen Papavasiliou?
The number on file is (201) 487-1240. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Karen Papavasiliou's NPI number?
Karen Papavasiliou's National Provider Identifier is 1407577638. 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
How long has Karen Papavasiliou been practicing?
Karen Papavasiliou has 4+ years experience. Registered with an NPI since 2022. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Karen Papavasiliou known for?
According to Medicare billing data, Karen Papavasiliou provides treatments such as psychotherapy with evaluation and management visit, 30 minutes and psychotherapy with evaluation and management visit, 45 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Karen Papavasiliou confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Karen Papavasiliou. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.